高锰酸钾改性汉麻对重金属离子镉的吸附性能研究  

Adsorption Capacity of China-Hemp Modified by Potassium Permanganate on Heavy Metal Cadmium Ions

作　　者：范丽君[1] 陈思思[1] 周岚[2] 冯新星[3] 陈建勇[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,杭州310018 [2]浙江理工大学生态染整技术教育部工程研究中心,杭州310018 [3]解放军总后勤部军需装备研究所,北京100010

出　　处：《现代纺织技术》2017年第3期37-39,64,共4页Advanced Textile Technology

基　　金：中国人民解放军总后勤部重大项目(AX114C002)

摘　　要：以高锰酸钾改性汉麻作为吸附剂,通过测定镉溶液的pH值、改性汉麻吸附时间、Cd^(^(2+))初始质量浓度研究高锰酸钾改性汉麻对重金属离子Cd^(2+)的吸附性能,并通过傅里叶红外光谱仪(FTIR)和模型拟合分析,探讨汉麻纤维对Cd^(2+)的吸附特性与吸附机理。结果表明:汉麻经高锰酸钾改性能有效提高对Cd^(2+)的吸附性能,且在溶液酸性条件下(pH5.5),溶液初始质量浓度为0.08mg/L,吸附时间为30min时,高锰酸钾改性汉麻纤维对Cd^(2+)的吸附效果最佳;吸附过程符合Langmuir等温模型。China-hemp modified by potassium permanganate was used as the adsorbent.The adsorption property of China-hemp modified by potassium permanganate on heavy metal Cd2＋ ions was investigated through measuring the pH of cadmium solution,the adsorption time of modified China-hemp and the initial Cd2＋concentration.Besides,FTIR and model fitting analysis were applied to discuss adsorption property and adsorption mechanism of China-hemp on Cd2＋.The result indicates that China-hemp modified by potassium permanganate can enhance adsorption capacity for Cd2＋ effectively.In addition,the optimal absorption conditions are as follows：pH 5.5,initial mass concentration of solution 0.08g/L,adsorption time 30 min.Moreover,the adsorption process is in accordance with Langmuir isotherm model.

关 键 词：改性汉麻 重金属离子 吸附性能 等温模型 

分 类 号：X131[环境科学与工程—环境科学]