改性玉米芯对活性嫩黄K-6G染料的吸附性能及动力学研究  

Adsorption Performance and Kinetic Study of Reactive Flavine K-6G Dye Removal Using Modified Corncob

作　　者：许茂东[1,2] 徐玫瑰[1] 吴之传[1] 

机构地区：[1]安徽工程大学生物与化学工程学院,安徽芜湖241000 [2]江南大学化学与材料工程学院,江苏无锡214122

出　　处：《安徽工程大学学报》2016年第5期57-62,共6页Journal of Anhui Polytechnic University

基　　金：安徽工程大学青年科研基金资助项目(2010YQ045)

摘　　要：以改性玉米芯为吸附剂,研究其对活性嫩黄K-6G染料的吸附性能和吸附动力学.重点考察了溶液的pH值、吸附时间、初始质量浓度和吸附温度对吸附性能的影响,并探讨了Langmuir等温吸附模型、吸附反应级数、反应速率常数和吸附反应活化能等内容.实验结果表明,较好的吸附反应条件为pH值1、温度25℃和时间6h,吸附反应为准一级反应,反应活化能Ea=15.224kJ/mol.Adsorption performance and adsorption kinetics of reactive flavine K-6G dye removal are researched using modified corncob as adsorbent.The effects of pH value, adsorption time, initial concentration and adsorption temperature on the adsorption properties were investigated. Meanwhile, the Lang muir isothermal adsorption model, order of adsorption reaction, reaction rate constant reaction and activation energy of adsorption reaction were discussed. The experimental results show that the better adsorption reaction conditions are under pH of 1, temperature of 25 ℃ and time of 6 hours.In addition, the adsorption reaction is a pseudo first order reaction, and the activation energy（Ea） is 15.224 kJ/mol.

关 键 词：改性玉米芯 活性嫩黄K-6G染料 吸附 动力学 

分 类 号：X703[环境科学与工程—环境工程]