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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 19    Special 3    December 2009

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Adsorption of avermectins on activated carbon: Equilibrium, kinetics, and UV-shielding
GU Wei(顾 微), SUN Chang-jiao(孙长娇), LIU Qi(刘 琪), CUI Hai-xin(崔海信)

Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China

Abstract:The adsorption of biopesticide avermectins onto activated carbon from ethanol solution with different initial concentrations at 303.15 K was performed. The obtained equilibrium and kinetic data of the adsorption process were assayed to evaluate the adsorption potential of activated carbon for avermectins. The results show that the activated carbon is effective for the adsorption of avermectins. Moreover, the adsorption of avermectins onto activated carbon agrees with Langmuir isotherm model, while pseudo-second-order kinetics model is better fitable for such adsorption process. In addition, activated carbon can efficiently protect adsorbed avermectins from photodegradation.

 

Key words: activated carbon; avermectins; adsorption; UV-shielding

ISSN 1672-7029
CN 43-1423/U

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