氢氧化钾高温活化处理核桃壳制备活性炭研究  

Research and preparation of activated carbon from walnut shell by high temperature activation with KOH

作　　者：方振华[1] 张常虎[1] 杨玲[1] 张冲[1] 

机构地区：[1]西安文理学院化学工程学院,陕西西安710065

出　　处：《化学工程师》2017年第10期8-9,22,共3页Chemical Engineer

基　　金：大学生创新创业训练计划项目(201511080592);西安市科技计划创新基金"文理专项"项目(CXY1531WL26)

摘　　要：以核桃壳为原料,经炭化后,采用KOH高温活化制备出核桃壳基活性炭,产品用扫描电镜(SEM)观察了形貌,并测试了产品对亚甲基蓝的吸附性能。考察了活化温度与核桃壳粒径对产品产率的影响。结果表明:活化温度越高,核桃壳粒径越小,产率越低;活性炭产品对pH值大于8的亚甲基蓝溶液去除效果较好。Walnut shell-based activated carbon was prepared by carbonization and high temperature activation with KOH using walnut shell as raw material. The morphology of product was characterized by scanning electron- microscope （SEM）. The adsorption capacity of methylene blue of product was tested. Effects of the activation tem- perature and the grain size on the yield of activated carbon were investigated. The results showed that the yield de- crease with the activation temperature increasing and grain size decreasing. The activated carbon product has a good removal effect on the methylene blue solution with pH higher than 8.

关 键 词：核桃壳 活性炭 吸附 

分 类 号：TQ424[化学工程]