橘皮吸附剂的制备及其对水中Cd^(2+)的吸附性能  

Preparation of Orange Peel Adsorbent and Adsorption Performance for Cd^(2+) from Water

作　　者：单忻 方汉章 周龙 汤哲 杨佳 宫贵贞[1] SHAN Xin;FANG Han-zhang;ZHOU Long;TANG Zhe;YANG Jia;GONG Gui-zhen(School of Materials and Chemical Engineering,Xuzhou Institute of Technology,Xuzhou 221018,China)

机构地区：[1]徐州工程学院材料与化学工程学院,江苏徐州221018

出　　处：《安徽化工》2023年第3期58-61,共4页Anhui Chemical Industry

基　　金：中国建筑材料联合会项目(2014-M3-4);徐州工程学院培育项目(XKY2018124);徐州工程学院大学生创新创业训练计划项目(xcx2022027)。

摘　　要：橘皮经氢氧化钠、双氧水处理制得纤维素,用丙烯酰胺对其进行化学改性制得吸附剂,考查了其对水中Cd^(2+)的吸附性能。结果表明:橘皮纤维素制备的最佳条件为橘皮粉末1.6 g,20 mL体积分数30%的双氧水,氢氧化钠固体1.6 g,反应温度80℃,反应时间2 h;所制得的吸附剂吸附Cd^(2+)的最佳条件为pH值6.0,50 mL Cd^(2+)浓度为100 mg/L时吸附剂用量为0.10 g,25℃下吸附18 h,最大平衡吸附容量为18.832 mg/g。该研究有望为橘皮废料的高附加值利用提供理论研究价值及应用技术支持。The adsorbent was produced from cellulose prepared from orange peel treated with sodium hydroxide and hydrogen peroxide and chemically modified with acrylamide,and its adsorption performance for Cd^(2+) in water was examined.The results showed that the optimum conditions for the preparation of orange peel cellulose were as follows:1.6 g orange peel powder,20 mL hydrogen peroxide with 30%volume fraction,1.6 g sodium hydroxide solid,80℃ and 2 h.The optimum conditions for the adsorbent to adsorb Cd^(2+) ions are as follows:pH=6.0,when the concentration of 50 mL Cd^(2+) is 100 mg/L,the amount of adsorbent is 0.10 g,and the temperature is 25℃ for 18 hours,the maximum equilibrium adsorption capacity is 18.832 mg/g.This study is expected to provide theoretical research value and application technical support for the high value-added utilization of orange peel waste.

关 键 词：橘皮 丙烯酰胺 吸附剂 Cd^(2+) 

分 类 号：X703[环境科学与工程—环境工程]