Adsorption Properties of Aniline onto β-cyclodeztrin Epichlorohydrin Copolymer
Batch adsorption experiments were carried out for the removal of aniline from aqueous solutions using β-cyclodextrin polymer (β-CDP). Studies concerning the effects of contact time and initial aniline concentration were presented and discussed. Results of batch experiments showed that this adsorbent exhibited some sorption capacities toward aniline. It was found that kinetic followed a pseudo 2nd order (Ho and McKay) equation, suggesting that the rate-limiting step may be chemisorption. Equilibrium isotherm data were analyzed according to Langmuir, Freundlich and Dubinin-Radushkevich (D-R) equations. The D-R isotherm gave the best correlation for the adsorption of aniline on β-CDP. The negative value of free energy change indicated the spontaneous nature of adsorption.
adsorption cyclodeztrin aniline cyclodeztrin polymer
Ning Li Xiao-Li Xiong Rui-Qi Wang
College of Environmental and Biological Engineering,Chongqing Technology and Business University,Chongqing,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）