油茶果壳提取物的改性及对Cr(Ⅵ)与Cu(Ⅱ)的吸附  

Modification of Camellia oleifera Shell Extract and Its Adsorption on Cr(Ⅵ) and Cu(Ⅱ)

作　　者：苏良佺 卢玉栋[2] 陈彩珍 吴阳[2] 柯金炼[1] 吴宗华[2] SU Liangquan;LU Yudong;CHEN Caizhen;WU Yang;KE Jinlian;WU Zonghua(Fujian Academy of Forestry, Fuzhou 350012, Fujian, China;College of Chemistry and Materials Science ,Fujian Normal University ,Fuzhou 350007 ,Fujian, China)

机构地区：[1]福建省林业科学研究院,福建福州350012 [2]福建师范大学化学与材料学院,福建福州350007

出　　处：《福建林业科技》2018年第2期17-21,48,共6页Journal of Fujian Forestry Science and Technology

基　　金：福建省林业厅项目(闽林科【2017】3号);福建省科技厅产学研项目(2017N5007);福建省科技厅项目(2015N0026);福建师范大学泉港石化研究院专项资金项目(2017YJY11)

摘　　要：采用油茶果壳提取物与戊二醛交联的方法,制备油茶果壳提取物改性吸附剂;探讨溶液pH、吸附时间等因素对改性吸附剂吸附铬离子、铜离子的影响,并采用吸附动力学模型进行模拟。结果表明,油茶多酚吸附剂对Cr(Ⅵ)、Cu(Ⅱ)离子的饱和吸附量分别达到99.6 mg·g^(-1)、71.7 mg·g^(-1);且具有较好的再生吸附性能,当吸附剂使用3次后,吸附剂对Cr(Ⅵ)离子再生饱和吸附量可达83.2 mg·g^(-1)。吸附动力学模型模拟结果表明:该改性吸附剂对Cr(VI)离子吸附的动力学过程可用准一级模型进行模拟,对Cu(Ⅱ)离子吸附的动力学过程可用准二级模型进行模拟。Polyphenol adsorbent was prepared by cross linking of Camellia oleifera shell extract with glutaraldehyde.Effects of pH,adsorption time and other factors on the adsorption of chromium ions and copper ions by modified adsorbents were discussed.The adsorption kinetics model was used for simulation.The results showed that the saturated adsorption capacity of polyphenol adsorbent on Cr（Ⅵ） and Cu（Ⅱ） ions reached 99.6 mg·g^（-1） and 71.7 mg·g^（-1） respectively,and had good regeneration and adsorption properties.When adsorbents were used for 3 times,the saturated adsorption capacity for Cr（Ⅵ） ions still reached 83.2 mg·g^（-1）.Through the simulation of the adsorption kinetics model,the adsorption kinetics of Cr（Ⅵ） ions in the modified adsorbent can be simulated by the pseudo-first-order.The kinetic process of Cu（Ⅱ） ion adsorption can be simulated by the pseudo-second-order.

关 键 词：油茶多酚 吸附剂 吸附 Cr(Ⅵ) Cu(Ⅱ) 

分 类 号：S794.4[农业科学—林木遗传育种]