Strukturne modifikacije i reakcije mikroporoznih i mezoporoznih materijala

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Strukturne modifikacije i reakcije mikroporoznih i mezoporoznih materijala (en)
Структурне модификације и реакције микропорозних и мезопорозних материјала (sr)
Strukturne modifikacije i reakcije mikroporoznih i mezoporoznih materijala (sr_RS)
Authors

Publications

Synthesis and characterization of materials obtained by modification of natural zeolite (clinoptilolite) and phosphate based microporous materials with zeolitic structure

Jevtić, Sanja

(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2015)

TY  - THES
AU  - Jevtić, Sanja
PY  - 2015
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=3283
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:11710/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=47512591
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4623
AB  - In the first part of the dissertation, the possibility of modifying the zeolitic tuff from the mine Zlatokop (near Vranjska Banja) was investigated in order to obtain new adsorbents. The second part presents the possibility of synthesize of new phosphate‐based microporous materials with structural properties of zeolites. The zeolitic tuff modified with benzalkonium chloride (BC) was tested as an adsorbent for the salicylate‐anions (SA). SA‐enriched zeolite was further studied as a model system for the controlled release of the pharmacologically active substance as well as a disinfectant toward the pathogenic bacteria: Gram‐negative Escherichia coli and Gram‐positive Staphylococcus aureus. It was found that about 80% of the adsorbed salicylate is delivered into solution during 5 hours. The release profile of SA from BC‐modified zeolite into solution is in a good agreement with the Korsmeyer‐Peppas kinetic model, which is usually used for description of the release kinetics of the pharmacologically active substances from different substrates. The zeolitic tuff modified with hydrated iron(III) oxide was investigated as an adsorbent for selenite and selenate ions. The adsorbent binds the anions through formation of Se‐O‐Fe and Se‐O‐Si bonds and oxo‐complexes. The spent adsorbent was tested as a supplement for the cultivation of mushroom Pleurotus ostreatus. The mushrooms grown on the substrate show possibility to adopt selenium from the surface and transfer it into selenoproteins. Structural role of 3‐methylaminopropylamine (MPA) in the synthesis of the porous inorganic phosphate‐based polymers was tested in the second part of thesis. The influence of temperature and time, the mole ratio of reactants and the presence of fluoride ions on the crystallization of aluminophosphates, metalsubstituted aluminophosphates and zincophosphates was investigated. Some of the obtained crystalline products are isostructural with the known alumo‐ and galophosphates, while others are new crystalline products.
AB  - U prvom delu disertacije ispitana je mogućnost modifikacije zeolitskog tufa iz rudnika Zlatokop (okolina Vranjske Banje) u cilju dobijanja novih adsorbenata, dok je u drugom delu opisana mogućnost sintetisanja novih mikroporoznih jedinjenja sa strukturnim svojstvima zeolita, na bazi fosfata. Zeolitski tuf modifikovan benzalkonijum‐hloridom (BC) ispitan je kao adsorbent salicilata (SA). SA‐obogaćeni zeolit je dalje ispitan kao model sistem za kontrolisano otpuštanje farmakološki aktivne supstance i kao dezinficijens u odnosu na bakterije: Gram‐negativnu Escherichia coli i Gram‐pozitivnu Staphylococcus aureus. Utvrđeno je da oko 80% salicilata pređe u rastvor sa adsorbenta tokom 5 sati. Kinetika desorpcije prati Korsmajer‐Pepasov kinetički model koji najčešće opisuje kinetiku otpuštanja farmakološki aktivnih supstanci sa različitih podloga. Zeolitski tuf modifikovan hidratisanim gvožđe(III)‐oksidom ispitan je kao adsorbent selenit‐ i selenat‐jona. Ovaj adsorbent vezuje ispitivane anjone tako što na površini adsorbenta dolazi do obrazovanja oksokompleksa i Se‐O‐Fe i Se‐O‐Si veza. Ovaj adsorbent ispitan je i kao supstrat u uzgoju medicinski značajne gljive Pleurotus ostreatus (bukovače). Gljive uzgajane na ovom supstratu usvajaju selen sa površine adsorbenta i prevode ga u selenoproteine. U drugom delu teze ispitana je strukturna uloga 3‐metilaminopropilamina (MPA) u sintezi poroznih neorganskih polimera na bazi fosfata. Praćen je uticaj temperature i vremena, molskog odnosa reaktanata i prisustva fluorid‐jona na kristalizaciju alumofosfata, metal‐supstituisanih alumofosfata i cinkfosfata. Dobijeni su različiti kristalni proizvodi od kojih su neki izostrukturni sa već poznatim alumo‐ i galofosfatima, a neki su novi kristalni proizvodi.
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Synthesis and characterization of materials obtained by modification of natural zeolite (clinoptilolite) and phosphate based microporous materials with zeolitic structure
T1  - Sinteza i karakterizacija materijala nastalih modifikacijom zeolita (klinoptilolita) i mikroporoznih fosfata sa strukturom zeolita
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4623
ER  - 
@phdthesis{
author = "Jevtić, Sanja",
year = "2015",
abstract = "In the first part of the dissertation, the possibility of modifying the zeolitic tuff from the mine Zlatokop (near Vranjska Banja) was investigated in order to obtain new adsorbents. The second part presents the possibility of synthesize of new phosphate‐based microporous materials with structural properties of zeolites. The zeolitic tuff modified with benzalkonium chloride (BC) was tested as an adsorbent for the salicylate‐anions (SA). SA‐enriched zeolite was further studied as a model system for the controlled release of the pharmacologically active substance as well as a disinfectant toward the pathogenic bacteria: Gram‐negative Escherichia coli and Gram‐positive Staphylococcus aureus. It was found that about 80% of the adsorbed salicylate is delivered into solution during 5 hours. The release profile of SA from BC‐modified zeolite into solution is in a good agreement with the Korsmeyer‐Peppas kinetic model, which is usually used for description of the release kinetics of the pharmacologically active substances from different substrates. The zeolitic tuff modified with hydrated iron(III) oxide was investigated as an adsorbent for selenite and selenate ions. The adsorbent binds the anions through formation of Se‐O‐Fe and Se‐O‐Si bonds and oxo‐complexes. The spent adsorbent was tested as a supplement for the cultivation of mushroom Pleurotus ostreatus. The mushrooms grown on the substrate show possibility to adopt selenium from the surface and transfer it into selenoproteins. Structural role of 3‐methylaminopropylamine (MPA) in the synthesis of the porous inorganic phosphate‐based polymers was tested in the second part of thesis. The influence of temperature and time, the mole ratio of reactants and the presence of fluoride ions on the crystallization of aluminophosphates, metalsubstituted aluminophosphates and zincophosphates was investigated. Some of the obtained crystalline products are isostructural with the known alumo‐ and galophosphates, while others are new crystalline products., U prvom delu disertacije ispitana je mogućnost modifikacije zeolitskog tufa iz rudnika Zlatokop (okolina Vranjske Banje) u cilju dobijanja novih adsorbenata, dok je u drugom delu opisana mogućnost sintetisanja novih mikroporoznih jedinjenja sa strukturnim svojstvima zeolita, na bazi fosfata. Zeolitski tuf modifikovan benzalkonijum‐hloridom (BC) ispitan je kao adsorbent salicilata (SA). SA‐obogaćeni zeolit je dalje ispitan kao model sistem za kontrolisano otpuštanje farmakološki aktivne supstance i kao dezinficijens u odnosu na bakterije: Gram‐negativnu Escherichia coli i Gram‐pozitivnu Staphylococcus aureus. Utvrđeno je da oko 80% salicilata pređe u rastvor sa adsorbenta tokom 5 sati. Kinetika desorpcije prati Korsmajer‐Pepasov kinetički model koji najčešće opisuje kinetiku otpuštanja farmakološki aktivnih supstanci sa različitih podloga. Zeolitski tuf modifikovan hidratisanim gvožđe(III)‐oksidom ispitan je kao adsorbent selenit‐ i selenat‐jona. Ovaj adsorbent vezuje ispitivane anjone tako što na površini adsorbenta dolazi do obrazovanja oksokompleksa i Se‐O‐Fe i Se‐O‐Si veza. Ovaj adsorbent ispitan je i kao supstrat u uzgoju medicinski značajne gljive Pleurotus ostreatus (bukovače). Gljive uzgajane na ovom supstratu usvajaju selen sa površine adsorbenta i prevode ga u selenoproteine. U drugom delu teze ispitana je strukturna uloga 3‐metilaminopropilamina (MPA) u sintezi poroznih neorganskih polimera na bazi fosfata. Praćen je uticaj temperature i vremena, molskog odnosa reaktanata i prisustva fluorid‐jona na kristalizaciju alumofosfata, metal‐supstituisanih alumofosfata i cinkfosfata. Dobijeni su različiti kristalni proizvodi od kojih su neki izostrukturni sa već poznatim alumo‐ i galofosfatima, a neki su novi kristalni proizvodi.",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Synthesis and characterization of materials obtained by modification of natural zeolite (clinoptilolite) and phosphate based microporous materials with zeolitic structure, Sinteza i karakterizacija materijala nastalih modifikacijom zeolita (klinoptilolita) i mikroporoznih fosfata sa strukturom zeolita",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4623"
}
Jevtić, S.. (2015). Synthesis and characterization of materials obtained by modification of natural zeolite (clinoptilolite) and phosphate based microporous materials with zeolitic structure. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_4623
Jevtić S. Synthesis and characterization of materials obtained by modification of natural zeolite (clinoptilolite) and phosphate based microporous materials with zeolitic structure. 2015;.
https://hdl.handle.net/21.15107/rcub_technorep_4623 .
Jevtić, Sanja, "Synthesis and characterization of materials obtained by modification of natural zeolite (clinoptilolite) and phosphate based microporous materials with zeolitic structure" (2015),
https://hdl.handle.net/21.15107/rcub_technorep_4623 .

On the zinc sorption by the Serbian natural clinoptilolite and the disinfecting ability and phosphate affinity of the exhausted sorbent

Stojaković, Đorđe; Hrenović, Jasna; Mazaj, Matjaz; Rajić, Nevenka

(Elsevier, Amsterdam, 2011)

TY  - JOUR
AU  - Stojaković, Đorđe
AU  - Hrenović, Jasna
AU  - Mazaj, Matjaz
AU  - Rajić, Nevenka
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1950
AB  - The Serbian natural zeolite is moderately effective in removing the zinc(II) ions from aqueous solutions. At 298 K the sorption capacity varies from 13 to 26% for the initial Zn(II) solution concentration of 100 and 600 mgZn dm(-3), respectively. The sorption isotherm at 298-338 K is best represented by the Langmuir model and the sorption kinetics by the pseudo-second-order model. The sorption involves a combination of film diffusion, intra-particle diffusion, and a chemical cation-exchange between the Na+ ions of clinoptilolite and Zn2+ ions. The sorption was found to be endothermic and spontaneous in the 298-338 K range. The exhausted sorbent can remove phosphate ions and it exhibits an excellent antibacterial activity towards Acinetobacter junii. By dehydration at about 500 degrees C it transforms to a ZnO-containing product featuring nano-sized wurtzite ZnO particles widespread over the clinoptilolite surface.
PB  - Elsevier, Amsterdam
T2  - Journal of Hazardous Materials
T1  - On the zinc sorption by the Serbian natural clinoptilolite and the disinfecting ability and phosphate affinity of the exhausted sorbent
EP  - 415
IS  - 1
SP  - 408
VL  - 185
DO  - 10.1016/j.jhazmat.2010.09.048
ER  - 
@article{
author = "Stojaković, Đorđe and Hrenović, Jasna and Mazaj, Matjaz and Rajić, Nevenka",
year = "2011",
abstract = "The Serbian natural zeolite is moderately effective in removing the zinc(II) ions from aqueous solutions. At 298 K the sorption capacity varies from 13 to 26% for the initial Zn(II) solution concentration of 100 and 600 mgZn dm(-3), respectively. The sorption isotherm at 298-338 K is best represented by the Langmuir model and the sorption kinetics by the pseudo-second-order model. The sorption involves a combination of film diffusion, intra-particle diffusion, and a chemical cation-exchange between the Na+ ions of clinoptilolite and Zn2+ ions. The sorption was found to be endothermic and spontaneous in the 298-338 K range. The exhausted sorbent can remove phosphate ions and it exhibits an excellent antibacterial activity towards Acinetobacter junii. By dehydration at about 500 degrees C it transforms to a ZnO-containing product featuring nano-sized wurtzite ZnO particles widespread over the clinoptilolite surface.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "On the zinc sorption by the Serbian natural clinoptilolite and the disinfecting ability and phosphate affinity of the exhausted sorbent",
pages = "415-408",
number = "1",
volume = "185",
doi = "10.1016/j.jhazmat.2010.09.048"
}
Stojaković, Đ., Hrenović, J., Mazaj, M.,& Rajić, N.. (2011). On the zinc sorption by the Serbian natural clinoptilolite and the disinfecting ability and phosphate affinity of the exhausted sorbent. in Journal of Hazardous Materials
Elsevier, Amsterdam., 185(1), 408-415.
https://doi.org/10.1016/j.jhazmat.2010.09.048
Stojaković Đ, Hrenović J, Mazaj M, Rajić N. On the zinc sorption by the Serbian natural clinoptilolite and the disinfecting ability and phosphate affinity of the exhausted sorbent. in Journal of Hazardous Materials. 2011;185(1):408-415.
doi:10.1016/j.jhazmat.2010.09.048 .
Stojaković, Đorđe, Hrenović, Jasna, Mazaj, Matjaz, Rajić, Nevenka, "On the zinc sorption by the Serbian natural clinoptilolite and the disinfecting ability and phosphate affinity of the exhausted sorbent" in Journal of Hazardous Materials, 185, no. 1 (2011):408-415,
https://doi.org/10.1016/j.jhazmat.2010.09.048 . .
30
31
36

Removal of nickel(II) ions from aqueous solutions using the natural clinoptilolite and preparation of nano-NiO on the exhausted clinoptilolite

Rajić, Nevenka; Stojaković, Đorđe; Jovanović, Mina; Zabukovec-Logar, Nataša; Mazaj, Matjaz; Kaučič, Venčeslav

(Elsevier Science Bv, Amsterdam, 2010)

TY  - JOUR
AU  - Rajić, Nevenka
AU  - Stojaković, Đorđe
AU  - Jovanović, Mina
AU  - Zabukovec-Logar, Nataša
AU  - Mazaj, Matjaz
AU  - Kaučič, Venčeslav
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1726
AB  - The natural zeolite tuff (clinoptilolite) from a Serbian deposit has been studied as adsorbent for Ni(II) ions from aqueous solutions. Its sorption capacity at 298K varies from 1.9mg Nig(-1) (for the initial solution concentration of 100mg Nidm(-3)) to 3.8mg Nig(-1) (for C-0 = 600mgNidm(-3)) and it increases 3 times at 338 K. The sorption is best described by the Sips isotherm model. The sorption kinetics follows the pseudo-second-order model, the activation energies being 7.44, 5.86, 6.62 and 6.63 kJ mol(-1) for C-0 = 100, 200, 300 and 400mg Nidm(-3), respectively. The sorption involves a film diffusion, an intra-particle diffusion, and a chemical cation-exchange between the Na+ ions of clinoptilolite and the Ni2+ ions. The sorption is endothermic (Delta H degrees being 37.9, 33.4, 30.0, 27.7 and 24.3 kJ mol(-1) for C-0 = 100, 200, 300, 400 and 600mg Nidm(-3), respectively) and spontaneous in the 298-338K temperature range. Thermal treatment of the Ni(II)-loaded clinoptilolite results in the formation of spherical nano-NiO particles of approx. 5 nm in diameter which are randomly dispersed in the clinoptilolite lattice.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Surface Science
T1  - Removal of nickel(II) ions from aqueous solutions using the natural clinoptilolite and preparation of nano-NiO on the exhausted clinoptilolite
EP  - 1532
IS  - 5
SP  - 1524
VL  - 257
DO  - 10.1016/j.apsusc.2010.08.090
ER  - 
@article{
author = "Rajić, Nevenka and Stojaković, Đorđe and Jovanović, Mina and Zabukovec-Logar, Nataša and Mazaj, Matjaz and Kaučič, Venčeslav",
year = "2010",
abstract = "The natural zeolite tuff (clinoptilolite) from a Serbian deposit has been studied as adsorbent for Ni(II) ions from aqueous solutions. Its sorption capacity at 298K varies from 1.9mg Nig(-1) (for the initial solution concentration of 100mg Nidm(-3)) to 3.8mg Nig(-1) (for C-0 = 600mgNidm(-3)) and it increases 3 times at 338 K. The sorption is best described by the Sips isotherm model. The sorption kinetics follows the pseudo-second-order model, the activation energies being 7.44, 5.86, 6.62 and 6.63 kJ mol(-1) for C-0 = 100, 200, 300 and 400mg Nidm(-3), respectively. The sorption involves a film diffusion, an intra-particle diffusion, and a chemical cation-exchange between the Na+ ions of clinoptilolite and the Ni2+ ions. The sorption is endothermic (Delta H degrees being 37.9, 33.4, 30.0, 27.7 and 24.3 kJ mol(-1) for C-0 = 100, 200, 300, 400 and 600mg Nidm(-3), respectively) and spontaneous in the 298-338K temperature range. Thermal treatment of the Ni(II)-loaded clinoptilolite results in the formation of spherical nano-NiO particles of approx. 5 nm in diameter which are randomly dispersed in the clinoptilolite lattice.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Surface Science",
title = "Removal of nickel(II) ions from aqueous solutions using the natural clinoptilolite and preparation of nano-NiO on the exhausted clinoptilolite",
pages = "1532-1524",
number = "5",
volume = "257",
doi = "10.1016/j.apsusc.2010.08.090"
}
Rajić, N., Stojaković, Đ., Jovanović, M., Zabukovec-Logar, N., Mazaj, M.,& Kaučič, V.. (2010). Removal of nickel(II) ions from aqueous solutions using the natural clinoptilolite and preparation of nano-NiO on the exhausted clinoptilolite. in Applied Surface Science
Elsevier Science Bv, Amsterdam., 257(5), 1524-1532.
https://doi.org/10.1016/j.apsusc.2010.08.090
Rajić N, Stojaković Đ, Jovanović M, Zabukovec-Logar N, Mazaj M, Kaučič V. Removal of nickel(II) ions from aqueous solutions using the natural clinoptilolite and preparation of nano-NiO on the exhausted clinoptilolite. in Applied Surface Science. 2010;257(5):1524-1532.
doi:10.1016/j.apsusc.2010.08.090 .
Rajić, Nevenka, Stojaković, Đorđe, Jovanović, Mina, Zabukovec-Logar, Nataša, Mazaj, Matjaz, Kaučič, Venčeslav, "Removal of nickel(II) ions from aqueous solutions using the natural clinoptilolite and preparation of nano-NiO on the exhausted clinoptilolite" in Applied Surface Science, 257, no. 5 (2010):1524-1532,
https://doi.org/10.1016/j.apsusc.2010.08.090 . .
90
86
102

Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia

Rajić, Nevenka; Stojaković, Đorđe; Jevtić, Sanja; Zabukovec-Logar, Nataša; Kovač, Janez; Kaučič, Venčeslav

(Elsevier, Amsterdam, 2009)

TY  - JOUR
AU  - Rajić, Nevenka
AU  - Stojaković, Đorđe
AU  - Jevtić, Sanja
AU  - Zabukovec-Logar, Nataša
AU  - Kovač, Janez
AU  - Kaučič, Venčeslav
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1467
AB  - The natural zeolite tuff from the Vranjska Banja deposit (Serbia) has been studied as sorbent for Mn(II) ions from aqueous solutions. The zeolite sample containing mainly clinoptilolite (more than 70%) removes Mn(II) ions by ion-exchange process, which was confirmed by X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray analysis (EDXS). XPS showed that there is no surface accumulation of Mn but an almost uniform distribution inside the sorbent; EDXS confirmed that Mn(II) replaced the clinoptilolite Na counter ions. The sorption isotherms were studied at 298 K by batch experiments showing that the Mn(II) removal is best described by the Langmuir-Freundlich or Sips model. The kinetics followed the pseudo-second-order model, the activation energy being 128 kJ mol(-1). The intra-particle diffusion is not the rate-controlling step in the sorption of Mn(II) on clinoptilolite. Thermodynamic data suggest spontaneity of the endothermic ion-exchange process in the 298-338 K range.
PB  - Elsevier, Amsterdam
T2  - Journal of Hazardous Materials
T1  - Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia
EP  - 1457
IS  - 2-3
SP  - 1450
VL  - 172
DO  - 10.1016/j.jhazmat.2009.08.011
ER  - 
@article{
author = "Rajić, Nevenka and Stojaković, Đorđe and Jevtić, Sanja and Zabukovec-Logar, Nataša and Kovač, Janez and Kaučič, Venčeslav",
year = "2009",
abstract = "The natural zeolite tuff from the Vranjska Banja deposit (Serbia) has been studied as sorbent for Mn(II) ions from aqueous solutions. The zeolite sample containing mainly clinoptilolite (more than 70%) removes Mn(II) ions by ion-exchange process, which was confirmed by X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray analysis (EDXS). XPS showed that there is no surface accumulation of Mn but an almost uniform distribution inside the sorbent; EDXS confirmed that Mn(II) replaced the clinoptilolite Na counter ions. The sorption isotherms were studied at 298 K by batch experiments showing that the Mn(II) removal is best described by the Langmuir-Freundlich or Sips model. The kinetics followed the pseudo-second-order model, the activation energy being 128 kJ mol(-1). The intra-particle diffusion is not the rate-controlling step in the sorption of Mn(II) on clinoptilolite. Thermodynamic data suggest spontaneity of the endothermic ion-exchange process in the 298-338 K range.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia",
pages = "1457-1450",
number = "2-3",
volume = "172",
doi = "10.1016/j.jhazmat.2009.08.011"
}
Rajić, N., Stojaković, Đ., Jevtić, S., Zabukovec-Logar, N., Kovač, J.,& Kaučič, V.. (2009). Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia. in Journal of Hazardous Materials
Elsevier, Amsterdam., 172(2-3), 1450-1457.
https://doi.org/10.1016/j.jhazmat.2009.08.011
Rajić N, Stojaković Đ, Jevtić S, Zabukovec-Logar N, Kovač J, Kaučič V. Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia. in Journal of Hazardous Materials. 2009;172(2-3):1450-1457.
doi:10.1016/j.jhazmat.2009.08.011 .
Rajić, Nevenka, Stojaković, Đorđe, Jevtić, Sanja, Zabukovec-Logar, Nataša, Kovač, Janez, Kaučič, Venčeslav, "Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia" in Journal of Hazardous Materials, 172, no. 2-3 (2009):1450-1457,
https://doi.org/10.1016/j.jhazmat.2009.08.011 . .
68
74
88

Thermal deamination kinetics of the nickel-containing chabazite-like aluminophosphate, Ni(NH2-CH2-CH2-NH2)(2)(AlPO4)(6)(OH)(2), deposition of nanocrystalline NiO particles

Rajić, Nevenka; Stojaković, Đorđe; Recnik, Aleksander

(Elsevier Science Sa, Lausanne, 2009)

TY  - JOUR
AU  - Rajić, Nevenka
AU  - Stojaković, Đorđe
AU  - Recnik, Aleksander
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1470
AB  - Thermogravimetrical analysis has been used to study the kinetics of thermal deamination of bis(ethylenediamine) nickel(II)-containing aluminophosphate (Ni-CHA) which is a precursor of nickel(II)-containing chabazite-like AlPO4-34. The deamination occurs as a single-step kinetic process which is best described by the contracting cylinder model. The obtained activation energy of 200 kJ/mol is mainly a reflection of the strong Ni-N coordination bond. The thermal decomposition of Ni-CHA results in the deposition of crystalline NiO particles homogeneously dispersed in the AlPO4-34 lattice. Average particle size was found to be about 5 nm. The study confirms that the thermal decomposition of amine complexes of Ni(II) encapsulated inside the microporous aluminophosphate host can be a suitable method for obtaining fine nano-oxide particles.
PB  - Elsevier Science Sa, Lausanne
T2  - Inorganica Chimica Acta
T1  - Thermal deamination kinetics of the nickel-containing chabazite-like aluminophosphate, Ni(NH2-CH2-CH2-NH2)(2)(AlPO4)(6)(OH)(2), deposition of nanocrystalline NiO particles
EP  - 5143
IS  - 15
SP  - 5139
VL  - 362
DO  - 10.1016/j.ica.2009.09.007
ER  - 
@article{
author = "Rajić, Nevenka and Stojaković, Đorđe and Recnik, Aleksander",
year = "2009",
abstract = "Thermogravimetrical analysis has been used to study the kinetics of thermal deamination of bis(ethylenediamine) nickel(II)-containing aluminophosphate (Ni-CHA) which is a precursor of nickel(II)-containing chabazite-like AlPO4-34. The deamination occurs as a single-step kinetic process which is best described by the contracting cylinder model. The obtained activation energy of 200 kJ/mol is mainly a reflection of the strong Ni-N coordination bond. The thermal decomposition of Ni-CHA results in the deposition of crystalline NiO particles homogeneously dispersed in the AlPO4-34 lattice. Average particle size was found to be about 5 nm. The study confirms that the thermal decomposition of amine complexes of Ni(II) encapsulated inside the microporous aluminophosphate host can be a suitable method for obtaining fine nano-oxide particles.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Inorganica Chimica Acta",
title = "Thermal deamination kinetics of the nickel-containing chabazite-like aluminophosphate, Ni(NH2-CH2-CH2-NH2)(2)(AlPO4)(6)(OH)(2), deposition of nanocrystalline NiO particles",
pages = "5143-5139",
number = "15",
volume = "362",
doi = "10.1016/j.ica.2009.09.007"
}
Rajić, N., Stojaković, Đ.,& Recnik, A.. (2009). Thermal deamination kinetics of the nickel-containing chabazite-like aluminophosphate, Ni(NH2-CH2-CH2-NH2)(2)(AlPO4)(6)(OH)(2), deposition of nanocrystalline NiO particles. in Inorganica Chimica Acta
Elsevier Science Sa, Lausanne., 362(15), 5139-5143.
https://doi.org/10.1016/j.ica.2009.09.007
Rajić N, Stojaković Đ, Recnik A. Thermal deamination kinetics of the nickel-containing chabazite-like aluminophosphate, Ni(NH2-CH2-CH2-NH2)(2)(AlPO4)(6)(OH)(2), deposition of nanocrystalline NiO particles. in Inorganica Chimica Acta. 2009;362(15):5139-5143.
doi:10.1016/j.ica.2009.09.007 .
Rajić, Nevenka, Stojaković, Đorđe, Recnik, Aleksander, "Thermal deamination kinetics of the nickel-containing chabazite-like aluminophosphate, Ni(NH2-CH2-CH2-NH2)(2)(AlPO4)(6)(OH)(2), deposition of nanocrystalline NiO particles" in Inorganica Chimica Acta, 362, no. 15 (2009):5139-5143,
https://doi.org/10.1016/j.ica.2009.09.007 . .
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The activity of iron-containing zeolitic materials for the catalytic oxidation in aqueous solutions

Milojević, M.; Dondur, V.; Damjanović, Lj.; Rakić, Vesna M.; Rajić, Nevenka; Ristić, A.

(8th Conference of the Yugoslav Materials Research Society, 2007)

TY  - JOUR
AU  - Milojević, M.
AU  - Dondur, V.
AU  - Damjanović, Lj.
AU  - Rakić, Vesna M.
AU  - Rajić, Nevenka
AU  - Ristić, A.
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1032
AB  - In this work, a series of iron-containing zeolitic materials has been tested as heterogeneous catalysts for decomposition of H2O2 and for oxidation of the cationic dye Methylene Blue with H2O2 in aqueous solutions. FeAPO and FeBEA zeolites, synthesized through hydrothermal crystallization of basic hydrogels, and FeY and FeZSM-5 zeolites, prepared by ion-exchange procedures, have been studied. The ion exchange with Fe(III) cations was performed from different salt solutions. Fe-exchange procedure carried out in Fe-citrate solution has been identified as an attractive option for the preparation of highly effective FeZSM-5 catalysts in wet oxidation processes. It has been shown that both tetrahedral, framework Fe, and octahedral, extra-framework Fe species incorporated into zeolite structure are catalytically active in wet oxidation reactions.
PB  - 8th Conference of the Yugoslav Materials Research Society
T2  - Materials Science Forum
T1  - The activity of iron-containing zeolitic materials for the catalytic oxidation in aqueous solutions
EP  - 218
SP  - 213
VL  - 555
DO  - 10.4028/0-87849-441-3.213
ER  - 
@article{
author = "Milojević, M. and Dondur, V. and Damjanović, Lj. and Rakić, Vesna M. and Rajić, Nevenka and Ristić, A.",
year = "2007",
abstract = "In this work, a series of iron-containing zeolitic materials has been tested as heterogeneous catalysts for decomposition of H2O2 and for oxidation of the cationic dye Methylene Blue with H2O2 in aqueous solutions. FeAPO and FeBEA zeolites, synthesized through hydrothermal crystallization of basic hydrogels, and FeY and FeZSM-5 zeolites, prepared by ion-exchange procedures, have been studied. The ion exchange with Fe(III) cations was performed from different salt solutions. Fe-exchange procedure carried out in Fe-citrate solution has been identified as an attractive option for the preparation of highly effective FeZSM-5 catalysts in wet oxidation processes. It has been shown that both tetrahedral, framework Fe, and octahedral, extra-framework Fe species incorporated into zeolite structure are catalytically active in wet oxidation reactions.",
publisher = "8th Conference of the Yugoslav Materials Research Society",
journal = "Materials Science Forum",
title = "The activity of iron-containing zeolitic materials for the catalytic oxidation in aqueous solutions",
pages = "218-213",
volume = "555",
doi = "10.4028/0-87849-441-3.213"
}
Milojević, M., Dondur, V., Damjanović, Lj., Rakić, V. M., Rajić, N.,& Ristić, A.. (2007). The activity of iron-containing zeolitic materials for the catalytic oxidation in aqueous solutions. in Materials Science Forum
8th Conference of the Yugoslav Materials Research Society., 555, 213-218.
https://doi.org/10.4028/0-87849-441-3.213
Milojević M, Dondur V, Damjanović L, Rakić VM, Rajić N, Ristić A. The activity of iron-containing zeolitic materials for the catalytic oxidation in aqueous solutions. in Materials Science Forum. 2007;555:213-218.
doi:10.4028/0-87849-441-3.213 .
Milojević, M., Dondur, V., Damjanović, Lj., Rakić, Vesna M., Rajić, Nevenka, Ristić, A., "The activity of iron-containing zeolitic materials for the catalytic oxidation in aqueous solutions" in Materials Science Forum, 555 (2007):213-218,
https://doi.org/10.4028/0-87849-441-3.213 . .
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