Novel complex gel beads composed of hydrolyzed polyacrylamide and chitosan: An effective adsorbent for the removal of heavy metal from aqueous solution

被引：70

作者：

Cao, Jie ^{[1
]}

Tan, Yebang ^{[1
,2
]}

Che, Yuju ^{[1
]}

Xin, Haipeng ^{[1
]}

机构：

[1] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China

[2] Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2010年 / 101卷 / 07期

关键词：

Heavy metal removal; Gel beads; Adsorption; Biosorbents; WATER;

D O I：

10.1016/j.biortech.2009.10.069

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A novel kind of complex gel beads containing HPAM (hydrolyzed polyacrylamide) and chitosan components (HPAM-chitosan gel beads) was prepared and applied in the removal of Cu2+, Pb2+, and Hg2+ ions from aqueous solutions. These gel beads exhibited a good performance for heavy metal removal. Moreover, the average diameter of these gel beads was about I mm, which could be appropriate for use in column, system. The removal order was Pb2+ > Cu2+ > Hg2+ under the same conditions. The effects of different experimental parameters, such as adsorbent dosage, initial pH, temperature, and initial metal concentration, on the adsorption capacities were studied. The Freundlich model gave a better fit to the experimental data than the Langmuir model in adsorption isotherm study. Desorption study indicated that the gel beads were easy to be regenerated. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2558 / 2561

页数：4

共 8 条

[1] Sorption of Zn(II), Pb(II), and Co(II) using natural sorbents: Equilibrium and kinetic studies [J].

Al-Degs, Yahya S. ;

El-Barghouthi, Musa I. ;

Issa, Ayman A. ;

Khraisheh, Majeda A. ;

Walker, Gavin M. .

WATER RESEARCH, 2006, 40 (14) :2645-2658

[2] Chitosan derivatives obtained by chemical modifications for biomedical and environmental applications [J].

Alves, N. M. ;

Mano, J. F. .

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2008, 43 (05) :401-414

[3] Adsorption kinetics for the removal of chromium(VI) from aqueous solution by adsorbents derived from used tyres and sawdust [J].

Hamadi, NK ;

Chen, XD ;

Farid, MM ;

Lu, MGQ .

CHEMICAL ENGINEERING JOURNAL, 2001, 84 (02) :95-105

[4]

Naiya T., 2009, J. Colloid Interface

[5] Removal of heavy metal ions from wastewater by chemically modified plant wastes as adsorbents: A review [J].

Ngah, W. S. Wan ;

Hanafiah, M. A. K. M. .

BIORESOURCE TECHNOLOGY, 2008, 99 (10) :3935-3948

[6] Novel type of alginate gel-based adsorbents for heavy metal removal [J].

Park, HG ;

Chae, MY .

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2004, 79 (10) :1080-1083

[7] Water-insoluble polymers containing amine, sulfonic acid, and carboxylic acid groups: Synthesis, characterization, and metal-ion-retention properties [J].

Rivas, BL ;

Villegas, S ;

Ruf, B .

JOURNAL OF APPLIED POLYMER SCIENCE, 2006, 99 (06) :3266-3274

[8] Gellan gel beads containing magnetic nanoparticles: An effective biosorbent for the removal of heavy metals from aqueous system [J].

Wang, Xia ;

Zhao, Chuanming ;

Zhao, Peng ;

Dou, Peipei ;

Ding, Yi ;

Xu, Ping .

BIORESOURCE TECHNOLOGY, 2009, 100 (07) :2301-2304

← 1 →