Title :
Kinetics of Diuron Adsorption onto Activated Carbon Fiber
Author :
Xu, Jianhua ; Sun, Yabing ; Li, Zhenyu ; Feng, Jingwei
Author_Institution :
Sch. of the Environ., Nanjing Univ., Nanjing, China
Abstract :
A study was conducted on the adsorption kinetics of diuron from aqueous solutions onto activated carbon fiber. The results showed that the formation of hydrogen bonds between diuron and water, and temperature variations may possibly affect the adsorption process. Furthermore, adsorption of diuron onto activated carbon fiber was affected remarkably by solution pH and the maximum adsorption amount was achieved at an optimum pH of 3.0. Different kinetic models were applied to the experimental results obtained. The pseudo-second-order rate equation fitted the adsorption kinetics data better than the pseudo-first-order rate equation.
Keywords :
activated carbon; adsorption; agrochemicals; carbon fibres; groundwater; water pollution; water treatment; activated carbon fiber; adsorption kinetics; adsorption process; aqueous solutions; diuron adsorption kinetics; groundwater contamination; herbicides; hydrogen bonds; pH; pseudo-second-order rate equation; Carbon; Carbon dioxide; Chemistry; Degradation; Equations; Kinetic theory; Mathematical model; activated carbon fiber; diuron adsorption; hydrogen bonds; kinetic models;
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2011 International Conference on
Conference_Location :
Shenzhen, Guangdong
Print_ISBN :
978-1-61284-289-9
DOI :
10.1109/ICICTA.2011.495
