Adsorption performances and antimicrobial activity of the nanosilver modified montmorillonite clay
Samo za registrovane korisnike
2020
Autori
Stevanović, MajaBajić, Zoran J.
Veličković, Zlate
Karkalić, Radovan
Pecić, Ljiljana
Otrisal, Pavel
Marinković, Aleksandar
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The synthesis and adsorption potential of Cy-npAg, obtained by modification of raw montmorillonite clay (raw-Cy) with silver nanoparticle (npAg), was studied in this work. Optimization procedure, with respect to time, temperature and amount of deposit npAg, obtained either by reductive precipitation or ultraviolet irradiation, was performed using response surface methodology (RSM). The most efficient adsorbent, obtained by chemical reduction of silver ion with sodium borohydride, named Cy-npAg, was characterized in detail using Brunauer-Emmett-Teller, scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction techniques, and point of zero charge determination. The Cy-npAg showed good adsorption capacity with respect to non-systemic organophosphate insecticide (diazinon) as well as of heavy metals ions (Cd2+ and Ni2+ ions), that is, 74.26, 62.33, and 35.49 mg g(-1), respectively, obtained from Langmuir model fitting. Temperature dependent kinetic study a...llowed determination of pseudo-second rate constant (10(3) g mg(-1) min(-1))/activation energies (kJ mol(-1)): 1.45/14.48 for diazinon, and 1.27/6.59 and 0.7/7.35 kJ mol(-1) for Cd2+ and Ni2+ ions, respectively. Thermodynamic parameters indicated feasible and spontaneous adsorption with main participation of physisorption. Antibacterial potential of npAg deposit for water disinfection was confirmed by the moderate reduction of bacterial growth of Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa, by 64%, 39%, and 70%, respectively. Thus, two synergistic effects contribute to water purification processes using Cy-npAg: pollutants removal with a simultaneous decrease of the microbial contamination contributing to overall water quality improvement.
Ključne reči:
Diazinon / Heavy metal / Clay / Silver nanoparticle / Antibacterial propertiesIzvor:
Desalination and Water Treatment, 2020, 187, 345-369Izdavač:
- Desalination Publ, Hopkinton
Finansiranje / projekti:
- Sinteza, razvoj tehnologija dobijanja i primena nanostrukturnih multifunkcionalnih materijala definisanih svojstava (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
- Usmerena sinteza, struktura i svojstva multifunkcionalnih materijala (RS-MESTD-Basic Research (BR or ON)-172057)
DOI: 10.5004/dwt.2020.25451
ISSN: 1944-3994
WoS: 000545026200036
Scopus: 2-s2.0-85098627159
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Stevanović, Maja AU - Bajić, Zoran J. AU - Veličković, Zlate AU - Karkalić, Radovan AU - Pecić, Ljiljana AU - Otrisal, Pavel AU - Marinković, Aleksandar PY - 2020 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4507 AB - The synthesis and adsorption potential of Cy-npAg, obtained by modification of raw montmorillonite clay (raw-Cy) with silver nanoparticle (npAg), was studied in this work. Optimization procedure, with respect to time, temperature and amount of deposit npAg, obtained either by reductive precipitation or ultraviolet irradiation, was performed using response surface methodology (RSM). The most efficient adsorbent, obtained by chemical reduction of silver ion with sodium borohydride, named Cy-npAg, was characterized in detail using Brunauer-Emmett-Teller, scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction techniques, and point of zero charge determination. The Cy-npAg showed good adsorption capacity with respect to non-systemic organophosphate insecticide (diazinon) as well as of heavy metals ions (Cd2+ and Ni2+ ions), that is, 74.26, 62.33, and 35.49 mg g(-1), respectively, obtained from Langmuir model fitting. Temperature dependent kinetic study allowed determination of pseudo-second rate constant (10(3) g mg(-1) min(-1))/activation energies (kJ mol(-1)): 1.45/14.48 for diazinon, and 1.27/6.59 and 0.7/7.35 kJ mol(-1) for Cd2+ and Ni2+ ions, respectively. Thermodynamic parameters indicated feasible and spontaneous adsorption with main participation of physisorption. Antibacterial potential of npAg deposit for water disinfection was confirmed by the moderate reduction of bacterial growth of Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa, by 64%, 39%, and 70%, respectively. Thus, two synergistic effects contribute to water purification processes using Cy-npAg: pollutants removal with a simultaneous decrease of the microbial contamination contributing to overall water quality improvement. PB - Desalination Publ, Hopkinton T2 - Desalination and Water Treatment T1 - Adsorption performances and antimicrobial activity of the nanosilver modified montmorillonite clay EP - 369 SP - 345 VL - 187 DO - 10.5004/dwt.2020.25451 ER -
@article{ author = "Stevanović, Maja and Bajić, Zoran J. and Veličković, Zlate and Karkalić, Radovan and Pecić, Ljiljana and Otrisal, Pavel and Marinković, Aleksandar", year = "2020", abstract = "The synthesis and adsorption potential of Cy-npAg, obtained by modification of raw montmorillonite clay (raw-Cy) with silver nanoparticle (npAg), was studied in this work. Optimization procedure, with respect to time, temperature and amount of deposit npAg, obtained either by reductive precipitation or ultraviolet irradiation, was performed using response surface methodology (RSM). The most efficient adsorbent, obtained by chemical reduction of silver ion with sodium borohydride, named Cy-npAg, was characterized in detail using Brunauer-Emmett-Teller, scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction techniques, and point of zero charge determination. The Cy-npAg showed good adsorption capacity with respect to non-systemic organophosphate insecticide (diazinon) as well as of heavy metals ions (Cd2+ and Ni2+ ions), that is, 74.26, 62.33, and 35.49 mg g(-1), respectively, obtained from Langmuir model fitting. Temperature dependent kinetic study allowed determination of pseudo-second rate constant (10(3) g mg(-1) min(-1))/activation energies (kJ mol(-1)): 1.45/14.48 for diazinon, and 1.27/6.59 and 0.7/7.35 kJ mol(-1) for Cd2+ and Ni2+ ions, respectively. Thermodynamic parameters indicated feasible and spontaneous adsorption with main participation of physisorption. Antibacterial potential of npAg deposit for water disinfection was confirmed by the moderate reduction of bacterial growth of Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa, by 64%, 39%, and 70%, respectively. Thus, two synergistic effects contribute to water purification processes using Cy-npAg: pollutants removal with a simultaneous decrease of the microbial contamination contributing to overall water quality improvement.", publisher = "Desalination Publ, Hopkinton", journal = "Desalination and Water Treatment", title = "Adsorption performances and antimicrobial activity of the nanosilver modified montmorillonite clay", pages = "369-345", volume = "187", doi = "10.5004/dwt.2020.25451" }
Stevanović, M., Bajić, Z. J., Veličković, Z., Karkalić, R., Pecić, L., Otrisal, P.,& Marinković, A.. (2020). Adsorption performances and antimicrobial activity of the nanosilver modified montmorillonite clay. in Desalination and Water Treatment Desalination Publ, Hopkinton., 187, 345-369. https://doi.org/10.5004/dwt.2020.25451
Stevanović M, Bajić ZJ, Veličković Z, Karkalić R, Pecić L, Otrisal P, Marinković A. Adsorption performances and antimicrobial activity of the nanosilver modified montmorillonite clay. in Desalination and Water Treatment. 2020;187:345-369. doi:10.5004/dwt.2020.25451 .
Stevanović, Maja, Bajić, Zoran J., Veličković, Zlate, Karkalić, Radovan, Pecić, Ljiljana, Otrisal, Pavel, Marinković, Aleksandar, "Adsorption performances and antimicrobial activity of the nanosilver modified montmorillonite clay" in Desalination and Water Treatment, 187 (2020):345-369, https://doi.org/10.5004/dwt.2020.25451 . .