Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel
2014
Authors
Momčilović, Milan Z.Ranđelović, Marjan S.
Onjia, Antonije E.
Zarubica, Aleksandra R.
Babić, Biljana M.
Matović, Branko
Article
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A resorcinol-formaldehyde carbon cryogel was prepared, characterized and used for the removal of the commonly used herbicide clopyralid from aqueous solutions under varying experimental conditions. The carbon exhibited a relatively high specific surface area, significant mesoporosity and an amorphous structure. The following isotherm models were used to interpret the equilibrium data: the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and the Helsey Model. Several models fitted the data well although the calculated values for q(max) poorly correlated with the experimentally obtained data. The pseudo-first and pseudo-second-order kinetic models, the models of Elovich, Bangham and the intraparticle diffusion model were employed for fitting the kinetic data. The rate of the process was fast at the beginning, although the adsorption equilibrium was not attained before 24 h. The adsorption was found to be pH dependent and favored in acidic solutions.
Keywords:
clopyralid / carbon cryogel / mesoporosity / Adsorption mechanismSource:
Journal of the Serbian Chemical Society, 2014, 79, 4, 481-494Funding / 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: 10.2298/JSC130611151M
ISSN: 0352-5139
WoS: 000335424700009
Scopus: 2-s2.0-84899488972
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VinčaTY - JOUR AU - Momčilović, Milan Z. AU - Ranđelović, Marjan S. AU - Onjia, Antonije E. AU - Zarubica, Aleksandra R. AU - Babić, Biljana M. AU - Matović, Branko PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5984 AB - A resorcinol-formaldehyde carbon cryogel was prepared, characterized and used for the removal of the commonly used herbicide clopyralid from aqueous solutions under varying experimental conditions. The carbon exhibited a relatively high specific surface area, significant mesoporosity and an amorphous structure. The following isotherm models were used to interpret the equilibrium data: the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and the Helsey Model. Several models fitted the data well although the calculated values for q(max) poorly correlated with the experimentally obtained data. The pseudo-first and pseudo-second-order kinetic models, the models of Elovich, Bangham and the intraparticle diffusion model were employed for fitting the kinetic data. The rate of the process was fast at the beginning, although the adsorption equilibrium was not attained before 24 h. The adsorption was found to be pH dependent and favored in acidic solutions. T2 - Journal of the Serbian Chemical Society T1 - Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel VL - 79 IS - 4 SP - 481 EP - 494 DO - 10.2298/JSC130611151M ER -
@article{ author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Onjia, Antonije E. and Zarubica, Aleksandra R. and Babić, Biljana M. and Matović, Branko", year = "2014", abstract = "A resorcinol-formaldehyde carbon cryogel was prepared, characterized and used for the removal of the commonly used herbicide clopyralid from aqueous solutions under varying experimental conditions. The carbon exhibited a relatively high specific surface area, significant mesoporosity and an amorphous structure. The following isotherm models were used to interpret the equilibrium data: the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Hurkins-Jura and the Helsey Model. Several models fitted the data well although the calculated values for q(max) poorly correlated with the experimentally obtained data. The pseudo-first and pseudo-second-order kinetic models, the models of Elovich, Bangham and the intraparticle diffusion model were employed for fitting the kinetic data. The rate of the process was fast at the beginning, although the adsorption equilibrium was not attained before 24 h. The adsorption was found to be pH dependent and favored in acidic solutions.", journal = "Journal of the Serbian Chemical Society", title = "Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel", volume = "79", number = "4", pages = "481-494", doi = "10.2298/JSC130611151M" }
Momčilović, M. Z., Ranđelović, M. S., Onjia, A. E., Zarubica, A. R., Babić, B. M.,& Matović, B.. (2014). Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel. in Journal of the Serbian Chemical Society, 79(4), 481-494. https://doi.org/10.2298/JSC130611151M
Momčilović MZ, Ranđelović MS, Onjia AE, Zarubica AR, Babić BM, Matović B. Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel. in Journal of the Serbian Chemical Society. 2014;79(4):481-494. doi:10.2298/JSC130611151M .
Momčilović, Milan Z., Ranđelović, Marjan S., Onjia, Antonije E., Zarubica, Aleksandra R., Babić, Biljana M., Matović, Branko, "Study on the efficient removal of clopyralid from water using a resorcinol-formaldehyde carbon cryogel" in Journal of the Serbian Chemical Society, 79, no. 4 (2014):481-494, https://doi.org/10.2298/JSC130611151M . .