Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions
Samo za registrovane korisnike
2015
Autori
Minović-Arsić, TamaraGulicovski, Jelena J.
Stoiljković, Milovan
Jokić, Bojan M.
Živković, Ljiljana
Matović, Branko
Babić, Biljana M.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Resorcinol-formaldehyde (RF) cryogels were synthesized by sol-gel polycondensation of resorcinol with formaldehyde and freeze-drying was carried out with t-butanol. Carbon cryogel (CC) was obtained by pyrolyzing RF cryogels in an inert atmosphere. Material was characterized by nitrogen adsorption-desorption measurements, field emission scanning electron microscopy (FESEM), determination of isoelectric point (IEP) and point of zero charge (PZC). The As(III) removal from aqueous solutions using CC as adsorbent was studied. The adsorption of As(III) on CC was investigated as a function of As(III) concentration and solution pH. Kinetic and equilibrium behavior were defined. The amount of adsorbed As(III) remained similar within the investigated pH of the solution at equilibrium (pH range 2-11). The adsorption mechanism of As(III) ions was discussed in view of arsenic speciation and cryogel PZC. It mainly involved physical adsorption of neutral arsenic acid molecule and H2AsO3- anion on the... CC surface with some electrostatic contribution. (C) 2014 Elsevier Inc. All rights reserved.
Ključne reči:
Carbon cryogel / Surface properties / Adsorption / Arsenic (III)Izvor:
Microporous and Mesoporous Materials, 2015, 201, 271-276Izdavač:
- Elsevier
Finansiranje / projekti:
- Sinteza, procesiranje i karakterizacija nanostrukturnih materijala za primenu u oblasti energije, mehaničkog inženjerstva, zaštite životne stredine i biomedicine (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
DOI: 10.1016/j.micromeso.2014.09.031
ISSN: 1387-1811; 1873-3093
WoS: 000345185200029
Scopus: 2-s2.0-84926146791
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Minović-Arsić, Tamara AU - Gulicovski, Jelena J. AU - Stoiljković, Milovan AU - Jokić, Bojan M. AU - Živković, Ljiljana AU - Matović, Branko AU - Babić, Biljana M. PY - 2015 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5798 AB - Resorcinol-formaldehyde (RF) cryogels were synthesized by sol-gel polycondensation of resorcinol with formaldehyde and freeze-drying was carried out with t-butanol. Carbon cryogel (CC) was obtained by pyrolyzing RF cryogels in an inert atmosphere. Material was characterized by nitrogen adsorption-desorption measurements, field emission scanning electron microscopy (FESEM), determination of isoelectric point (IEP) and point of zero charge (PZC). The As(III) removal from aqueous solutions using CC as adsorbent was studied. The adsorption of As(III) on CC was investigated as a function of As(III) concentration and solution pH. Kinetic and equilibrium behavior were defined. The amount of adsorbed As(III) remained similar within the investigated pH of the solution at equilibrium (pH range 2-11). The adsorption mechanism of As(III) ions was discussed in view of arsenic speciation and cryogel PZC. It mainly involved physical adsorption of neutral arsenic acid molecule and H2AsO3- anion on the CC surface with some electrostatic contribution. (C) 2014 Elsevier Inc. All rights reserved. PB - Elsevier T2 - Microporous and Mesoporous Materials T1 - Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions EP - 276 SP - 271 VL - 201 DO - 10.1016/j.micromeso.2014.09.031 ER -
@article{ author = "Minović-Arsić, Tamara and Gulicovski, Jelena J. and Stoiljković, Milovan and Jokić, Bojan M. and Živković, Ljiljana and Matović, Branko and Babić, Biljana M.", year = "2015", abstract = "Resorcinol-formaldehyde (RF) cryogels were synthesized by sol-gel polycondensation of resorcinol with formaldehyde and freeze-drying was carried out with t-butanol. Carbon cryogel (CC) was obtained by pyrolyzing RF cryogels in an inert atmosphere. Material was characterized by nitrogen adsorption-desorption measurements, field emission scanning electron microscopy (FESEM), determination of isoelectric point (IEP) and point of zero charge (PZC). The As(III) removal from aqueous solutions using CC as adsorbent was studied. The adsorption of As(III) on CC was investigated as a function of As(III) concentration and solution pH. Kinetic and equilibrium behavior were defined. The amount of adsorbed As(III) remained similar within the investigated pH of the solution at equilibrium (pH range 2-11). The adsorption mechanism of As(III) ions was discussed in view of arsenic speciation and cryogel PZC. It mainly involved physical adsorption of neutral arsenic acid molecule and H2AsO3- anion on the CC surface with some electrostatic contribution. (C) 2014 Elsevier Inc. All rights reserved.", publisher = "Elsevier", journal = "Microporous and Mesoporous Materials", title = "Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions", pages = "276-271", volume = "201", doi = "10.1016/j.micromeso.2014.09.031" }
Minović-Arsić, T., Gulicovski, J. J., Stoiljković, M., Jokić, B. M., Živković, L., Matović, B.,& Babić, B. M.. (2015). Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions. in Microporous and Mesoporous Materials Elsevier., 201, 271-276. https://doi.org/10.1016/j.micromeso.2014.09.031
Minović-Arsić T, Gulicovski JJ, Stoiljković M, Jokić BM, Živković L, Matović B, Babić BM. Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions. in Microporous and Mesoporous Materials. 2015;201:271-276. doi:10.1016/j.micromeso.2014.09.031 .
Minović-Arsić, Tamara, Gulicovski, Jelena J., Stoiljković, Milovan, Jokić, Bojan M., Živković, Ljiljana, Matović, Branko, Babić, Biljana M., "Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions" in Microporous and Mesoporous Materials, 201 (2015):271-276, https://doi.org/10.1016/j.micromeso.2014.09.031 . .