多硅酸改性石墨烯及其吸附性能的研究  

Graphene modified by polysilicate acid and its adsorption capacity

作　　者：王威[1] 王储备[2] 周建伟[2] 宁斌科[1] 

机构地区：[1]西安近代化学研究所,陕西西安710000 [2]新乡学院能源与燃料研究所,河南新乡453003

出　　处：《化学研究与应用》2016年第2期263-266,共4页Chemical Research and Application

基　　金：西安近代化学研究所青年科技创新基金项目(SJMPCX1303)资助;河南省高校科技创新人才支持计划项目(2010HASTIT040)资助;河南省教育厅科学技术研究重点项目(12B210022)资助;新乡市科技发展计划项目(13SF39)资助;新乡学院创新基金(12ZB09;12ZB10)资助

摘　　要：通过多硅酸改性石墨烯合成惰性物质改性的石墨烯基吸附剂,研究了改性石墨烯的官能团与成分。进行氮气吸附脱附测试,结果表明改性石墨烯的孔径增加。改性石墨烯的吸附性能用亚甲基蓝、甲基橙和腐植酸进行测试,吸附性能提高。改性石墨烯对亚甲基蓝的吸附量达到202.4 mg·g-1,高于石墨烯的吸附量115.9mg·g-1。Graphene-based adsorbent was synthsized by modified graphene with polysilicate acid.Active group and component of the sample were investigated.The porosity of the sample was confirmed by nitrogen sorption,the results show that polysilicate acid improvedpore size of the sample.Adsorption capacity for the samplewas tested by methylene blue,methyl orange and humic acid,adsorption capacities are enhanced.For the sample,adsorption capacity for methylene blue is 202. 4 mg·g^-1,which is much larger than that（ 115. 9 mg·g^-1） of the same compound with reduced graphene oxide under similar conditions.

关 键 词：石墨烯 吸附 改性 

分 类 号：O611.4[理学—无机化学]