SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal
Authorized Users Only
2013
Authors
Momčilović, Milan Z.Ranđelović, Marjan S.
Zarubica, Aleksandra R.
Onjia, Antonije
Kokunešoski, Maja
Matović, Branko
Article (Published version)
Metadata
Show full item recordAbstract
The ordered mesoporous silica SBA-15 was synthesized and used as a template for obtaining mesoporous carbon replicas. Adsorptive removal of pesticide 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions onto two carbon replicas was investigated. Batch adsorption experiments varied in initial adsorptive concentration, contacting times, solution pH, and adsorbent dosage. Pseudo-first order model, pseudo-second order model, and intraparticle diffusion model were selected to interpret the kinetics of adsorption. Kinetic parameters such as rate constants, equilibrium adsorption capacities and correlation coefficients were calculated and discussed for each model. Equilibrium data were linearly fitted to Langmuir, Freundlich, Tamkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and Halsey isotherm models. It was shown that adsorption of 2,4-D onto two carbon replicas well followed the pseudo-second order kinetic model. Langmuir isotherm represented experimental data in the best way ...since this model gave the best fit. Adsorption capacity strongly depends on the solution pH and increases at lower pH values.
Keywords:
2,4-Dichlorophenoxyacetic acid / Carbon replicas / RemovalSource:
Chemical Engineering Journal, 2013, 220, 276-283Publisher:
- Elsevier Science Sa, Lausanne
Funding / projects:
- Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
DOI: 10.1016/j.cej.2012.12.024
ISSN: 1385-8947
WoS: 000317541200031
Scopus: 2-s2.0-84874059181
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Momčilović, Milan Z. AU - Ranđelović, Marjan S. AU - Zarubica, Aleksandra R. AU - Onjia, Antonije AU - Kokunešoski, Maja AU - Matović, Branko PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2534 AB - The ordered mesoporous silica SBA-15 was synthesized and used as a template for obtaining mesoporous carbon replicas. Adsorptive removal of pesticide 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions onto two carbon replicas was investigated. Batch adsorption experiments varied in initial adsorptive concentration, contacting times, solution pH, and adsorbent dosage. Pseudo-first order model, pseudo-second order model, and intraparticle diffusion model were selected to interpret the kinetics of adsorption. Kinetic parameters such as rate constants, equilibrium adsorption capacities and correlation coefficients were calculated and discussed for each model. Equilibrium data were linearly fitted to Langmuir, Freundlich, Tamkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and Halsey isotherm models. It was shown that adsorption of 2,4-D onto two carbon replicas well followed the pseudo-second order kinetic model. Langmuir isotherm represented experimental data in the best way since this model gave the best fit. Adsorption capacity strongly depends on the solution pH and increases at lower pH values. PB - Elsevier Science Sa, Lausanne T2 - Chemical Engineering Journal T1 - SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal EP - 283 SP - 276 VL - 220 DO - 10.1016/j.cej.2012.12.024 ER -
@article{ author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Zarubica, Aleksandra R. and Onjia, Antonije and Kokunešoski, Maja and Matović, Branko", year = "2013", abstract = "The ordered mesoporous silica SBA-15 was synthesized and used as a template for obtaining mesoporous carbon replicas. Adsorptive removal of pesticide 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions onto two carbon replicas was investigated. Batch adsorption experiments varied in initial adsorptive concentration, contacting times, solution pH, and adsorbent dosage. Pseudo-first order model, pseudo-second order model, and intraparticle diffusion model were selected to interpret the kinetics of adsorption. Kinetic parameters such as rate constants, equilibrium adsorption capacities and correlation coefficients were calculated and discussed for each model. Equilibrium data were linearly fitted to Langmuir, Freundlich, Tamkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and Halsey isotherm models. It was shown that adsorption of 2,4-D onto two carbon replicas well followed the pseudo-second order kinetic model. Langmuir isotherm represented experimental data in the best way since this model gave the best fit. Adsorption capacity strongly depends on the solution pH and increases at lower pH values.", publisher = "Elsevier Science Sa, Lausanne", journal = "Chemical Engineering Journal", title = "SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal", pages = "283-276", volume = "220", doi = "10.1016/j.cej.2012.12.024" }
Momčilović, M. Z., Ranđelović, M. S., Zarubica, A. R., Onjia, A., Kokunešoski, M.,& Matović, B.. (2013). SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal. in Chemical Engineering Journal Elsevier Science Sa, Lausanne., 220, 276-283. https://doi.org/10.1016/j.cej.2012.12.024
Momčilović MZ, Ranđelović MS, Zarubica AR, Onjia A, Kokunešoski M, Matović B. SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal. in Chemical Engineering Journal. 2013;220:276-283. doi:10.1016/j.cej.2012.12.024 .
Momčilović, Milan Z., Ranđelović, Marjan S., Zarubica, Aleksandra R., Onjia, Antonije, Kokunešoski, Maja, Matović, Branko, "SBA-15 templated mesoporous carbons for 2,4-dichlorophenoxyacetic acid removal" in Chemical Engineering Journal, 220 (2013):276-283, https://doi.org/10.1016/j.cej.2012.12.024 . .