Removal of copper from aqueous solution by carbon nanotube/calcium alginate composites

被引：247

作者：

Li, Yanhui ^{[1
,2
]}

Liu, Fuqiang ^{[1
]}

Xia, Bing ^{[1
]}

Du, Qiuju ^{[1
]}

Zhang, Pan ^{[1
]}

Wang, Dechang ^{[2
]}

Wang, Zonghua ^{[1
]}

Xia, Yanzhi ^{[1
]}

机构：

[1] Qingdao Univ, Growing Base State Key Lab, Lab Fiber Mat & Modern Text, Qingdao 266071, Peoples R China

[2] Qingdao Univ, Coll Electromech Engn, Qingdao 266071, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2010年 / 177卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

Carbon nanotubes; Calcium alginate; Copper; Adsorption; ENCAPSULATED MAGNETIC SORBENT; CALCIUM ALGINATE; HEAVY-METALS; SODIUM ALGINATE; CA-ALGINATE; ADSORPTION; NANOTUBES; BIOSORPTION; IONS; LEAD;

D O I：

10.1016/j.jhazmat.2009.12.114

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

With bulk production and increasing application of carbon nanotubes (CNTs) as adsorbents in wastewater treatment, they will eventually be discharged into water environment and result in human contact risk to these toxic materials. However, so far few attentions have been paid to resolve the environmental micro-pollution caused by these micro-sized CNTs. In this research, an environmental friendly adsorbent, CNTs immobilized by calcium alginate (CNTs/CA) was prepared. Its copper adsorption properties were investigated via equilibrium studies. Experimental results showed that copper removal efficiency of CNTs/CA is high and reaches 69.9% even at a lower pH of 2.1. The copper adsorption capacity of CNTs/CA can attain 67.9 mg/g at copper equilibrium concentration of 5 mg/L. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：876 / 880

页数：5

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