茶叶质铁对活性艳红K-2BP染料和活性嫩黄K-6G染料的吸附性能研究  

Adsorption properties of tea-Fe(Ⅲ) on dyes wastewater

作　　者：黄江胜[1] 陶庭先[1] 吴之传[1] 何苏皖[1] 吴琦[1] 张勇[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

出　　处：《安徽工程科技学院学报（自然科学版）》2010年第2期1-3,共3页Journal of Anhui University of Technology and Science

摘　　要：用改性茶叶与Fe3+反应,制得吸附材料茶叶质铁,用此吸附剂吸附水溶液中的活性艳红K-2BP染料和活性嫩黄K-6G染料,对吸附pH值、温度和时间等工艺条件和吸附动力学进行了研究.结果表明:茶叶质铁对2种染料的吸附最佳pH值都小于1,平衡吸附量随着温度的升高先增大后减小,茶叶质铁对结构式中含酚羟基的活性艳红K-2BP染料饱和吸附量大;动力学吸附速率方程表明茶叶质铁对2种染料的吸附反应符合一级反应.Adsorbent of tea-Fe（Ⅲ） was abtained by the reaction of modified tea with Fe3＋.And it was then used for the adsorption of Reactive Brilliant Red K-2BP and Reactive Brilliant Yellow K-6G.The adsorption properties and kinetics were studied.The effects of the concentration,pH,time and temperature on adsorption capacity were investigated.The results show that the optimum pH of the adsorption is less than 1 and the adsorption capacity first increases then reduces with the increment of the temperature.Tea-Fe（Ⅲ） enjoys a higher adsorption capacity for Reactive Brilliant Red K-2BP with phenolic hydroxyl group.The adsorption kinetics accorded with the character of the first order reaction.

关 键 词：茶叶质铁 染料废水 吸附 动力学 

分 类 号：O647.3[理学—物理化学]