【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。更多还原

【Abstract】 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.更多还原