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1楼 2014-12-18 11:20:29

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Synthesis of an adsorbent from sugarcane bagass by graft copolymerization and its utilization to remove Cd (II) ions from aqueous solution
作者:Niu, XC (Niu, Xianchun)[ 1 ] ; Zheng, LC (Zheng, Liuchun)[ 2,3 ] ; Zhou, JM (Zhou, Jianmin)[ 1 ] ; Dang, Z (Dang, Zhi)[ 3,4 ] ; Li, ZS (Li, Zesheng)[ 1 ]
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
卷: 45  期: 5  页: 2557-2564
DOI: 10.1016/j.jtice.2014.06.006
出版年: SEP 2014
查看期刊信息
摘要
This paper presents a novel adsorbent, modified sugarcane bagasse (MSB), that is developed from untreated sugarcane bagasse (USB) using graft copolymerization and which can be used to remove cadmium ions from aqueous solution. The adsorption capacity of MSB was evaluated with respect to several factors, including pH values, initial cadmium concentration, and the adsorbent dosages. Adsorption isotherms, kinetics, activation energy, and thermodynamic parameters are also described in detail. The Langmuir isotherm model offered the best fit among the various isotherms. The maximum adsorption capacities of MSB and USB were 14.28 and 3.53 mg g(-1), respectively. The adsorption kinetic results indicated that the adsorption of Cd (II) onto MSB followed the pseudo-second-order model, and chemical adsorption was the rate-controlling step. The calculated activation energy (E-a) was 254.5 kJ mol(-1), which indicates that the adsorption of Cd (II) onto MSB was under chemical control. Sugarcane bagasse can be a potentially effective heavy metal adsorbent after a cost effective graft copolymerization. (C) 2014 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
关键词
作者关键词:Cadmium; Sugarcane bagasse; Graft copolymerization; Adsorption; Kinetics models
KeyWords Plus:HEAVY-METALS; ADSORPTION; CADMIUM; CU(II); EQUILIBRIUM; BIOSORBENT; MECHANISM; CELLULOSE; KINETICS; EXCHANGE
作者信息
通讯作者地址: Niu, XC (通讯作者)
      Guangdong Univ Petrochem Technol, Coll Environm & Biol Engn, Maoming 525000, Peoples R China.
地址:
      [ 1 ] Guangdong Univ Petrochem Technol, Coll Environm & Biol Engn, Maoming 525000, Peoples R China
显示增强组织信息的名称 [ 2 ] S China Normal Univ, Sch Chem & Environm, Guangzhou 510006, Guangdong, Peoples R China
显示增强组织信息的名称 [ 3 ] S China Univ Technol, Coll Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China
      [ 4 ] Minist Educ, Key Lab Pollut Control & Ecosyst Restorat Ind Clu, Guangzhou 510006, Guangdong, Peoples R China
电子邮件地址:mmcnxc@126.com
基金资助致谢
基金资助机构授权号
Science and technology Projects of Guangdong Province
2012B010500028
2012B031000020
Chinese Academy of Sciences comprehensive strategic cooperation project in Guangdong Province
2011B090300105
National Natural Science Foundation of China
40730741
41073088
National Special Science and Technology Project on Treatment and Control of Water Pollution of China
2008ZX07211-001
查看基金资助信息
出版商
ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
类别 / 分类
研究方向:Engineering
Web of Science 类别:Engineering, Chemical
文献信息
文献类型:Article
语种:English
入藏号: WOS:000343635200061
ISSN: 1876-1070
eISSN: 1876-1089
期刊信息
Impact Factor (影响因子): Journal Citation Reports®
其他信息
IDS 号: AR5PC
Web of Science 核心合集中的 "引用的参考文献": 34
Web of Science 核心合集中的 "被引频次": 0

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