Adsorption Properties of Aniline onto beta-Cyclodextrin Epichlorohydrin Copolymer

Author

Li, Ning ; Xiong, Xiao-Li ; Wang, Rui-Qi

Author_Institution

Coll. of Environ. & Biol. Eng., Chongqing Technol. & Bus. Univ., Chongqing, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

Abstract

Batch adsorption experiments were carried out for the removal of aniline from aqueous solutions using beta-cyclodextrin polymer (beta-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 2^nd 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 beta-CDP. The negative value of free energy change indicated the spontaneous nature of adsorption.

Keywords

adsorption; free energy; organic compounds; polymer blends; Dubinin-Radushkevich equation; Freundlich equation; Langmuir equation; adsorption; aniline; aqueous solutions; beta-cyclodextrin epichlorohydrin copolymer; equilibrium isotherm data; free energy; pseudosecond order equation; sorption capacity; Chemical analysis; Data analysis; Educational institutions; Equations; Kinetic theory; Polymers; Purification; Stability; Wastewater; Water pollution;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5162288

Filename

5162288