Position: Home > Articles > 银杏叶粉末活性炭对水中DBP的吸附效能与机理
Hubei Agricultural Sciences
2013,52
(10)
2290-2294,2298
银杏叶粉末活性炭对水中DBP的吸附效能与机理
作 者：
张鹏伟;王郑;余丹;蔡孟哲
单 位：
南京林业大学土木工程学院
关键词：
银杏叶粉末活性炭;邻苯二甲酸二丁酯(DBP);吸附;效能;机理
摘 要：
以银杏叶为原料,采用氯化锌活化法制备活性炭,对银杏叶粉末活性炭吸附水中邻苯二甲酸二丁酯(DBP)的平衡、动力学和热力学特性以及pH、反应时间和温度对DBP吸附率的影响进行研究.结果表明,吸附符合Freundlich等温模型,吸附过程符合伪二级动力学模型,吸附率受温度的影响较小,吸附是自发的,碱性条件更有利于吸附的发生.
单 位：
School of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China
关键词：
ginkgo leaves powder acticarbon%DBP%adsorption%performance%mechanism
摘 要：
Acticarbon derived from ginkgo leaves was prepared with Zinc chloride.The adsorption performance and mechanism of the ginkgo leaves acticarbon on DBP in water were studied,such as the absorption equilibrium of acticarbon to DBP,the characteristics of dynamics and thermodynamics,the effect of pH,reation time and temperature on the absorption rate of DBP.The results showed that the adsorption of the ginkgo leaves acticarbon on DBP accorded with the Freundlich isotherm.The adsorption process was Pseudo-second-order reaction.The adsorption efficiency was affected smaller by the temperature.The adsorption was spontaneous and feasible,and alkaline condition was more conductive to it.
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