生物质化学工程Issue(2)：1-7,7.DOI:10.3969/j.issn.1673-5854.2014.02.001
活性炭对汞离子的吸附动力学研究
Kinetics Studies on Adsorption of Hg2+ by Activated Carbon
摘要
Abstract
Activated carbon with micropores was prepared from coconut carbon using steam activation by secondary activation. N2-adsorption isotherm, mathematical models such as D-R equation and BJH methods were used to characterize the properties of the prepared activated carbons. With mercury chloride as pollution targets, the adsorption properties of activated carbon for Hg2+were investigated. The results indicated that the adsorption of Hg2+ was obviously influenced by surface area and pore structure of activated carbon. The process of adsorption was a two speed process with rapidly adsorption and slowly adsorption coexisting. This process could be well described by Lagergren pseudo second order model. The adsorption isotherm experiment showed that adsorption of Hg2+ on activated carbon is an exothermic and single molecular layer adsorption process. It could be fitted by Langmuir isotherm model.关键词
活性炭/氯化汞/比表面性质/吸附动力学/吸附等温线Key words
activated carbon/mercury chloride/specific surface properties/adsorption kinetics/adsorption isotherm分类
化学化工引用本文复制引用
卢辛成,蒋剑春,孙康,谢新苹,张艳萍,王金表..活性炭对汞离子的吸附动力学研究[J].生物质化学工程,2014,(2):1-7,7.基金项目
中央级公益性科研院所基本科研业务费专项资金(CAFINT2013C02) （CAFINT2013C02）
江苏省自然科学基金(BK2012514) （BK2012514）
