郑州大学学报（工学版）2012，Vol.33Issue(3)：80-83,4.DOI:10.3969/j.issn.1671-6833.2012.03.020
新型壳聚糖交联树脂的制备及对Pb(Ⅱ)吸附热性能研究
Preparation of Novel Cross-linked Chitosan Resin and Properties of Adsorption on Pb (Ⅱ)
摘要
Abstract
In this study, chitosan resin was prepared with an improved drop-ball-forming method using chitosan as the raw material. Epichlorohydrin was used to cross-link the resin in order to enhance rigidity of resin, and a new chitosan cross-linked resin was synthesised. The pH of solution, temperature, time and initial concentration of Pb( 1] ) were discussed to assess the adsorption performance. Besides, adsorption thermody-namic and kinetic of Pb ( H ) was studied. The results showed that the pH was the main influencing factor, after 4. 5 hours of adsorption at pH =6. 0 and 30 ℃ , the maximum adsorption capacity ( 105. 0 mg/g) was reached. Moreover, Temkin equation and Pseudo second-order equation were used to describe the thermody-naniic and kinetics. The correlation coefficients were 0. 9995 and 0. 9926 respectively. The results showed that the removal mechanism may include physical adsorption and chemical adsorption.关键词
新型壳聚糖交联树脂/Pb(Ⅱ)/热力学/动力学Key words
a new chitosan cross-linked resin/Pb ( II ) / thermodynamics/ kinetics分类
资源环境引用本文复制引用
李顺义,李斌,吴朕君,王岩..新型壳聚糖交联树脂的制备及对Pb(Ⅱ)吸附热性能研究[J].郑州大学学报（工学版）,2012,33(3):80-83,4.基金项目
国家重大水专项(2009ZX07210-004) （2009ZX07210-004）
郑州大学研究生科学研究基金项目(11L01103). （11L01103）
