Removal of nitrophenols by adsorption using β-cyclodextrin modified zeolites

doi:10.1016/S1004-9541(11)60075-X

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	Removal of nitrophenols by adsorption using β-cyclodextrin modified zeolites
	Li, Xiaohong 1,2; Zhao, Baowei 2; Zhu, Kun 2; Hao, Xuekui 1
刊名	Chinese Journal of Chemical Engineering
	2011-12-01
卷号	19 期号:6 页码:938-943
关键词	Cyclodextrins Dyes Integral equations Kinetics Particle size pH Phenols Sodium chloride Zeolites Adsorption capacities Adsorption kinetics Adsorption process Beta-cyclodextrin modification Nitrophenols Pseudo second order kinetics Pseudo-second order rates
ISSN号	10049541
DOI	10.1016/S1004-9541(11)60075-X
英文摘要	Removal of nitrophenols (NPs) from aqueous solutions through the adsorption process by using cationic β-cyclodextrin (CCD) modified zeolite (CCDMZ) was investigated. The effects of particle size, contact time, solution pH values and sodium chloride content in the aqueous on adsorption capacity were evaluated through a series of batch experiments. The results showed that CCDMZ had a higher adsorption capacity for removing NPs at a size fraction of 0.45-0.9 mm while adsorption of NPs on CCDMZ reached equilibrium within 60 min. The adsorption process was apparently influenced by pH values and sodium chloride content in aqueous solution. To ascertain the mechanisms of sorption, the experimental data were modeled by using the pseudo-first and pseudo-second order kinetic equations, and the results indicated that the adsorption kinetics of NPs on CCDMZ well-matched with the pseudo-second order rate expression. © 2011 Chemical Industry and Engineering Society of China (CIESC) and Chemical Industry Press (CIP).
语种	英语
出版者	Chemical Industry Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111701]
专题	兰州理工大学
作者单位	1.Civil Engineering Department, Lanzhou Polytechnic College, Lanzhou 730050, China 2.School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
推荐引用方式 GB/T 7714	Li, Xiaohong,Zhao, Baowei,Zhu, Kun,et al. Removal of nitrophenols by adsorption using β-cyclodextrin modified zeolites[J]. Chinese Journal of Chemical Engineering,2011,19(6):938-943.
APA	Li, Xiaohong,Zhao, Baowei,Zhu, Kun,&Hao, Xuekui.(2011).Removal of nitrophenols by adsorption using β-cyclodextrin modified zeolites.Chinese Journal of Chemical Engineering,19(6),938-943.
MLA	Li, Xiaohong,et al."Removal of nitrophenols by adsorption using β-cyclodextrin modified zeolites".Chinese Journal of Chemical Engineering 19.6(2011):938-943.