文献类型：期刊文献

中文题名：酸碱改性活性炭对甲苯的吸附性能研究

英文题名：STUDY ON THE TOLUENE ADSORPTION ON ACTIVATED CARBON MODIFIED BY ACID AND ALKALI

作者：陈玉莲[1];吴秋芳[1];孔凡滔[1]

机构：[1]华东理工大学化工学院超细粉末国家工程研究中心,上海200237

年份：2016

卷号：34

期号：2

起止页码：91

中文期刊名：环境工程

外文期刊名：Environmental Engineering

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

基金：上海市科技创新行动计划纳米科技项目(11nm0500400)

语种：中文

中文关键词：甲苯;活性炭;改性;吸附

外文关键词：toluene; activated carbon; modification; adsorption;

摘要：活性炭分别经过不同的酸碱处理,采用红外光谱、Boehm滴定和比表面积分析仪对其进行了表征,并测定了改性活性炭对甲苯的吸附性能。结果表明:HNO_3改性会使活性炭表面的酸性基团含量增加,碱性基团含量减少,NaOH和NaHCO_3改性结果则正好相反。吸附实验表明,碱性基团含量增加有利于提高活性炭对甲苯的吸附能力,而酸性基团含量增加则降低了这一能力。
In the paper,activated carbons were treated with different acid and alkali solution. The property of the modified activated carbons was characterized by Boehm titration,FTIR and surface area measurement. Adsorption capacity of toluene on the modified activated carbons was measured. The results showed that the modification by HNO_3 could reduce alkalic groups content and increase acidic groups content. The modification by Na OH and Na HCO3 had the opposite effect. Toluene adsorption tests showed that adsorption capacity got strenghthened by the increase of the alkalic groups content and weakened with the increase of total acid groups content.