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Adsorption of lead ions using a modified lignin hydrogel

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成果类型:
期刊论文
作者:
Yao, Qingxin;Xie, Jianjun*;Liu, Junxia;Kang, Hongmei;Liu, Yuan
通讯作者:
Xie, Jianjun
作者机构:
[Liu, Yuan; Liu, Junxia; Xie, Jianjun; Yao, Qingxin] Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China.
[Kang, Hongmei] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China.
通讯机构:
[Xie, Jianjun] C
Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China.
语种:
英文
关键词:
Amides;Cadmium;Copper;Hydrogels;Lead;Lignin;Maleic anhydride;Acrylamides;Adsorption mechanism;Competitive adsorption;Ion exchange mechanisms;Lead ions;Modification;Pseudo-second order model;Thermodynamic parameter;Adsorption
期刊:
Journal of Polymer Research
ISSN:
1022-9760
年:
2014
卷:
21
期:
6
页码:
1-16
基金类别:
Acknowledgments The authors appreciated the financial support of the Project of National Natural Science Foundation of China (No. 31270603) and Graduate’s Scientific Research Foundation of Hunan Province and Central South University of Forestry and Technology(No.CX2013B347, No. CX2013B10, No.CX2014A01). On the other hand, the authors would like to thank Liu Minna for the technical assistance in materials characterization.
机构署名:
本校为第一且通讯机构
院系归属:
材料科学与工程学院
摘要:
Adsorbent composites comprising of bentonite/sodium lignosulfonate graft-polymerized with acrylamide and maleic anhydride (BLPAMA) were synthesized, characterized, and used to remove Pb2+ from aqueous solution with a large adsorption capacity. The fundamental adsorption behavior of the as-prepared BLPAMA was studied as a function of adsorbent dosage, initial pH, contact time, temperature, concentration of Pb2+, and additive electrolyte. Results showed that the adsorption of Pb2+ on BLPAMA was temperature-independent but strongly pH dependent. T...

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