Thermodynamics and Kinetics of Pretilachlor Adsorption on Organobentonites for Controlled Release

ACS Omega
Chou WuLin Ma

Abstract

Thermodynamics and kinetics of pretilachlor adsorption on organobentonites modified with hexadecyltrimethyl ammonium chloride were investigated to reveal the structural effects of organobentonites on the interaction with pretilachlor and the diffusion of the herbicide and were related to the controlled release from organobentonites. The adsorption of pretilachlor was entropically driven by hydrophobic interaction. The entropy change dropped with increasing surfactant loading from 0.4 to 1.50 times the cation exchange capacity (CEC) of the bentonite used, corresponding to a decrease in the degree of freedom of pretilachlor molecules due to the enhanced order of surfactant in the interlayer. The kinetics of pretilachlor adsorption was well fitted to the pseudo-second-order model and related to the structural features of organobentonites. The enhanced packing density of the surfactant in the interlayer generally resulted in a reduction of the rate constant of the pretilachlor adsorption onto organobentonites. However, the stepwise increase in the basal spacing due to the surfactant arrangement transition, from lateral-monolayer to lateral-bilayer at a loading level of more than 0.8 × CEC, benefited the diffusion of pretilachlor an...Continue Reading

References

Feb 24, 2001·The Science of the Total Environment·K KibeK Urano
Apr 4, 2002·Journal of Agricultural and Food Chemistry·Rafael CelisJuan Cornejo
May 2, 2002·Journal of Agricultural and Food Chemistry·Yael Golda MishaelShlomo Nir
Apr 3, 2003·Journal of Agricultural and Food Chemistry·Yael G MishaelShlomo Nir
May 15, 2003·Journal of Agricultural and Food Chemistry·Tamara PolubesovaBaruch Rubin
Apr 26, 2005·Journal of Colloid and Interface Science·Jianxi ZhuFeng Deng
Jun 7, 2005·Advances in Colloid and Interface Science·Gerhard Lagaly, Imre Dékany
Aug 18, 2005·Journal of Agricultural and Food Chemistry·M Fernández-PérezS Pérez-García
Mar 11, 2006·Journal of Colloid and Interface Science·Gürhan GereliKadir Yurdakoç
Jun 26, 2007·Chemosphere·F Flores CéspedesM Fernández Pérez
Dec 17, 2008·Journal of Colloid and Interface Science·Liheng Xu, Lizhong Zhu
Aug 21, 2013·Science·Clemens LamberthAndrew Plant
Sep 12, 2014·Environmental Science & Technology·Wesley W StoneKaren R Ryberg
Mar 4, 2015·Ecotoxicology and Environmental Safety·Emmaluel N PapadakisEuphemia Papadopoulou-Mourkidou

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Methods Mentioned

BETA
equilibrium adsorption
infrared spectroscopy
X-ray

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