摘要
以桑枝为原料,采用微波氯化锌法制备桑枝基活性炭,在微波功率800 W和氯化锌溶液质量分数50%的条件下,考察微波辐射时间、锌屑比、浸渍时间、氯化锌溶液p H值对活性炭得率和苯酚吸附值的影响。结果表明,制备活性炭的优化工艺条件为:锌屑质量比3∶1,氯化锌溶液p H值2,浸渍时间20 h,微波辐射时间25 min。在此条件下,活性炭的得率为37.4%,苯酚吸附值为138.3 mg/g,Cr6+吸附值为7.877 mg/g。
Morus albaL. as raw material,Morus albaL.-based activated carbon used for adsorbing phenol by microwave irradiation activated with zinc chloride. Under the condition of the microwave power was 800 W,solution mass fraction was 50%. The influence of microwave irradiation time,mass ratio of Zinc chloride to Morus albaL. ,time of Morus albaL. impregnated in ZnCl2 solution,pH value of ZnCl2 solution on the yield of active carbon and the phenol adsorption were investigated. The result showed that the opti-mum conditions for the preparation of activated carbon with ZnCl2 by microwave irradiation was obtained：the mass ratio of ZnCl2 to Morus albaL. was 3∶1. pH value of ZnCl2 solution was 2,dipping time was 20 h, microwave irradiation time was 25 min. In this preparation process conditions,the yield of active carbon was 37. 4%,the phenol adsorption value was 138. 3 mg/g and Cr6＋ adsorption value was 7. 877 mg/g.
出处
《应用化工》
CAS
CSCD
北大核心
2015年第9期1599-1601,共3页
Applied Chemical Industry
基金
国家自然科学基金资助项目(21266002)
广西石化资源加工及过程强化技术重点实验室开放课题(2014K006)
新世纪广西高等教育教学改革工程项目(2011JGA010)
广西大学科学研究基金
关键词
桑枝
活性炭
制备
微波
氯化锌
Morus albaL.
activated carbon
preparation
microwave
zinc chloride
作者简介
朱婧娴（1991-），女，江苏连云港人，广西大学在读硕士研究生，师从陈丛瑾副教授，从事生物质资源化学与利用方面研究。电话：18376759269，E—mail：584406948@qq．com
通讯联系人：陈丛瑾（1970-），女，湖北咸宁人，广西大学副教授，博士，硕士生导师。电话：13878173382，E-mail：then-congjin@gxu．edu．cn
