ADSORPTION OF HYDROGELS BASED ON CELLULOSE FOR CU(II)AND NI(II): BEHAVIORS AND MECHANISMS

摘要：

Hydrogels based on cellulose-graft-poly (acrylic acid) copolymer was synthesized by graft copolymerization in phosphorous acid solvent.FT-IR spectra confirmed the structure of the cellulosegraft-poly (acrylic acid) copolymer.The adsorption behaviors of the hydrogels for Cu(II) and Ni(II) were investigated.The results showed that the adsorption capacity of hydrogels increased as initial concentrations of metal ions and the pH value of solution increased.Freundlich and Langmuir isotherm models were employed to analyze the data from batch adsorption experiments.The results indicated that there were very good correlation coefficients for Freundlich and Langmuir models.The maximum adsorption amount of hydrogels for metal ions from Langmuir model were 182 and 200 mg/g for Cu(II) and Ni (II),respectively.

关键词： cellulose hydrogels adsorption metal ion

作者: Shaoping Yang Shiyu Fu Juanjuan Liu Yiming Zhou Xueyun Li2,and Qian Liu

作者单位: Department of Mathematics & Physics,Wit Zhou University,Wuzhou,543002,China State Key Laboratory of State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou,51 Department of Mathematics & Physics,Wit Zhou University,Wuzhou,543002,China State Key Laboratory of Department of Mathematics & Physics,Wit Zhou University,Wuzhou,543002,China

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 1342-1346

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）