壳聚糖-DMC-GA共聚物对Cr(Ⅵ)和Cd(Ⅱ)的吸附性能

doi:10.3969/j.issn.1673-5854.2016.06.003

生物质化学工程 ›› 2016, Vol. 50 ›› Issue (6): 17-22.doi: 10.3969/j.issn.1673-5854.2016.06.003

壳聚糖-DMC-GA共聚物对Cr(Ⅵ)和Cd(Ⅱ)的吸附性能

陈天骄, 姚春才

南京林业大学化学工程学院, 江苏南京 210037

收稿日期:2016-05-04 出版日期:2016-11-30 发布日期:2016-12-03
通讯作者: 姚春才(1962-),男,教授,博士,从事生物质化学工程方面的研究;E-mail:ccyao@njfu.com.cn E-mail:ccyao@njfu.com.cn
作者简介:陈天骄(1991-),女,江苏启东人,硕士生,主要从事天然高分子改性与应用研究
基金资助:
江苏高校优势学科建设工程资助项目（无编号）

Adsorption Performance of Cr(Ⅵ) and Cd(Ⅱ) on Chitosan-DMC-GA Copolymer

CHEN Tian-jiao, YAO Chun-cai

College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China

Received:2016-05-04 Online:2016-11-30 Published:2016-12-03

摘要/Abstract

摘要： 以壳聚糖为原料、甲基丙烯酰氧乙基三甲基氯化铵（DMC）为接枝单体、硝酸铈铵为引发剂、Span-80为乳化剂、戊二醛（GA）为交联剂，通过反相乳液聚合技术制备了壳聚糖-DMC-GA共聚物，对其进行表征并将其用于吸附水溶液中单一金属离子Cr（Ⅵ）、Cd（Ⅱ）和双元体系Cr（Ⅵ）-Cd（Ⅱ），考察了吸附动力学和吸附平衡规律。共聚物的红外光谱和X射线光电子能谱分析表明：壳聚糖与DMC发生了接枝反应，与戊二醛发生了交联反应。吸附实验结果表明：在单一金属离子溶液中，共聚物对1 mmol/L的Cr（Ⅵ）和Cd（Ⅱ）的平衡吸附量分别为1.974和1.396 mmol/g；在双元体系中，共聚物对1 mmol/L的Cr（Ⅵ）和Cd（Ⅱ）的平衡吸附量分别为1.906和1.204 mmol/g；吸附过程均符合拟二级动力学方程，吸附等温线均与Langmuir模型更为一致，说明共聚物对2种金属离子的吸附是单分子层吸附。

关键词: 壳聚糖-DMC-GA共聚物, Cr(Ⅵ), Cd(Ⅱ), 吸附动力学, 吸附平衡

Abstract: With chitosan as the raw material, methylacryloyloxyethyl trimethyl ammonium chloride (DMC) as grafting monomer,ammonium cerium nitrate as the initiator,Span-80 as the emulsifier,glutaraldehyde (GA) as the crosslinking agent,the chitosan-DMC-GA copolymer was prepared through inverse emulsion polymerization.It was used to adsorb single ions Cr(Ⅵ) and Cd(Ⅱ) and the dual system Cr(Ⅵ)-Cd(Ⅱ).The adsorption kinetics and adsorption equilibrium were explored.The results of FT-IR and XPS analysis of copolymer showed that DMC and GA reacted with chitosan successfully,and the adsorption capacities of single ions Cr(Ⅵ) and Cd(Ⅱ)(1 mmol/L)were 1.974 and 1.396 mmol/g.In the dual system,the adsorption capacities of Cr(Ⅵ) and Cd(Ⅱ) were 1.906 and 1.204 mmol/g,and the adsorption processes of single ions Cr(Ⅵ) and Cd(Ⅱ) and the dual system Cr(Ⅵ)-Cd(Ⅱ) all followed the pseudo-second-order kinetics.The adsorption isotherms were all well described by the Langmuir equation.This meaned that the adsorption was monolayer adsorption.

Key words: chitosan-DMC-GA copolymer, Cr(Ⅵ), Cd(Ⅱ), adsorption kinetics, adsorption equilibrium

中图分类号:

TQ35

陈天骄, 姚春才. 壳聚糖-DMC-GA共聚物对Cr(Ⅵ)和Cd(Ⅱ)的吸附性能[J]. 生物质化学工程, 2016, 50(6): 17-22.

CHEN Tian-jiao, YAO Chun-cai. Adsorption Performance of Cr(Ⅵ) and Cd(Ⅱ) on Chitosan-DMC-GA Copolymer[J]. bce, 2016, 50(6): 17-22.

参考文献

[1] 蔡玉婷. 电镀废水对人体的危害及其集中处理[J]. 农业环境科学学报,2010,29(增刊):205-208.
[2] 于炎湖. 警惕饲料中镉的污染与危害[J]. 中国饲料,2001(5):21-23.
[3] 王丽娟,吴成业. 水产品中镉的形态分析及其危害[J]. 福建水产,2014,36(1):78-84.
[4] 蒋挺大. 壳聚糖[M]. 北京:化学工业出版社,2001.
[5] 陈孝娥. 阳离子型壳聚糖吸附剂的制备及吸附性能研究[D]. 南昌:南昌航空大学硕士学位论文,2006.
[6] 王铮,付岩. 交联壳聚糖树脂的制备及其对Cu²⁺吸附性的研究[J]. 电镀与精饰,2015,37(10):44-46.
[7] 徐灵,王成端,姚岚. 重金属废水处理技术分析与优选[J]. 广州化工,2006,34(6):44-46.
[8] 华婷婷,陈晓东,葛华才. 模板法交联壳聚糖的制备及其吸附Cd(Ⅱ)的研究[J]. 广州化工,2015,43(21):63-64.
[9] SUN Sheng-ling,WANG Qin,WANG Ai-qin. Adsorption properties of Cu(Ⅱ) ions onto N-succinyl-chitosan and crosslinked N-succinyl-chitosan template resin[J]. Biochemical Engineering Journal,2007,36(2):131-138.
[10] BAUMANN H,FAUST V. Concepts for improved regioselective placement of O-sulfo,N-sulfo,N-acetyl,and N-carboxymethyl groups in chitosan derivatives[J]. Carbohydrate Research,2001,331(1):43-57.
[11] 巫拱生,慕建光,张国. MMA、EA与壳聚糖的接枝共聚反应[J]. 精细化工,1993,10(1):12-16.
[12] 余宙,仵彦卿,刘预. 新型交联壳聚糖材料对地下水重金属Zn²⁺的吸附性能[J]. 生态环境学报,2009,18(6):2102-2107.
[13] 周耀玲,姚春才,方年. 交联壳聚糖季胺盐吸附剂的制备及其对重金属离子的吸附[J]. 化工环保,2014,34(2):170-175.
[14] AL-GHOUTI M A,KHRAISHEH M A M,AHMAD M N M,et al. Adsorption behaviour of methylene blue onto Jordanian diatomite:A kinetic study[J]. Journal of Hazardous Materials,2009,165(1/2/3):589-598.
[15] LEE S T,MI F L,SHEN Y J,et al. Equilibrium and kinetic studies of copper(Ⅱ) ion uptake by chitosan-tripolyphosphate chelating resin[J]. Polymer,2001,42(5):1879-1892.
[16] LI Hai-bo,BI Shao-dan,LIU Long,et al. Separation and accumulation of Cu(Ⅱ),Zn(Ⅱ) and Cr(VI) from aqueous solution by magnetic chitosan modified with diethylenetriamine[J]. Desalination,2011,278(1):397-404.
[17] ABDULLAH M A,CHIANG L,NADEEM M. Comparative evaluation of adsorption kinetics and isotherms of a natural product removal by Amberlite polymeric adsorbents[J]. Chemical Engineering Journal,2009,146(3):370-376.
[18] WONG Y C,SZETO Y S,CHEUNG W H,et al. Equilibrium studies for acid dye adsorption onto chitosan[J]. Langmuir,2003,19(19):7888-7894.

壳聚糖-DMC-GA共聚物对Cr(Ⅵ)和Cd(Ⅱ)的吸附性能

Adsorption Performance of Cr(Ⅵ) and Cd(Ⅱ) on Chitosan-DMC-GA Copolymer

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