Adsorption Kinetics of Modified Pomelo Peel Cellulose towards Lead Ions

doi:10.7506/spkx1002-6300-201003019

FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (3): 87-90.doi: 10.7506/spkx1002-6300-201003019

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Adsorption Kinetics of Modified Pomelo Peel Cellulose towards Lead Ions

LUO Jun，GE Jing-wei，YANG Xiao-bo，LI Xiao-ding*

College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China

Received:2009-05-11 Revised:2009-09-23 Online:2010-02-01 Published:2010-12-29
Contact: LUO Jun E-mail:luojun@webmail.hzau.edu.cn

Abstract

Abstract:

Succinic anhydride modified pomelo peel cellulose as biosorbents, Cell 5 and Cell 6 were used to remove lead ions from aqueous solutions. Adsorption equilibrium and kinetics of lead ions from aqueous solutions onto modified pomelo peel cellulose were investigated. Adsorption kinetics of lead ions onto Cell 5 and Cell 6 obeyed pseudo-second-order equation. Adsorption equilibrium studies demonstrated that the bio-adsorption complied with Langmuir isotherm model. The maximum adsorption capacities of Cell 5 and Cell 6 were 142.86 mg/g and 181.82 mg/g, respectively. These investigations suggest that modified pomelo peel cellulose is an attractive candidate for removing lead ions from aqueous solutions.

Key words: pomelo peel cellulose, modified, lead ions, bio-adsorption, adsorption mechanism

CLC Number:

TS201.1

LUO Jun，GE Jing-wei，YANG Xiao-bo，LI Xiao-ding*. Adsorption Kinetics of Modified Pomelo Peel Cellulose towards Lead Ions[J]. FOOD SCIENCE, 2010, 31(3): 87-90.

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Adsorption Kinetics of Modified Pomelo Peel Cellulose towards Lead Ions

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