活性炭纤维对水中敌草隆的吸附性能  

DIURON ADSORPTION FROM AQUEOUS SOLUTIONS ONTO ACTIVATED CARBON FIBER

作　　者：徐建华[1] 孙亚兵[1] 冯景伟[2] 朱艳[2] 

机构地区：[1]污染控制与资源化国家重点实验室,南京大学环境学院,南京210046 [2]合肥工业大学,土木与水利工程学院,合肥230009

出　　处：《环境化学》2011年第12期2009-2014,共6页Environmental Chemistry

基　　金：水处理与水环境修复教育部工程研究中心开放基金资助项目(WTWER0709);污染控制与资源化研究国家重点实验室开放基金(PCRRF10016);合肥工业大学博士学位人员专项资助基金(107-036416,GDBJ2009-027)资助

摘　　要：探讨了活性炭纤维对水中敌草隆的吸附.结果表明,在pH=2.9时,吸附量最大;活性炭纤维的吸附能力随着温度的升高而升高;Redlich-Peterson方程更适合描述敌草隆的吸附行为;Gibbs自由能(ΔG0)值小于零,说明此吸附过程是自发进行的吸附过程;假二级方程更适用于描述活性炭纤维对水中敌草隆的吸附动力学过程.This study explored the adsorption of diuron onto the activated carbon fiber（ACF）. The results showed that the maximum adsorption amount was achieved at an optimum pH of 2.9; The equilibrium adsorption amount of diuron on the ACF increased with increasing temperature ; The adsorption process could be depicted primely by Redlich-Peterson function; The Gibbs free energy （AGo ） was below zero, which indicated the adsorption was a spontaneous process; The kinetics data were better fitted with the pseudo-second-order kinetic model.

关 键 词：活性炭纤维 吸附 敌草隆 

分 类 号：X592[环境科学与工程—环境工程]