由稻壳炭合成介孔二氧化硅  

Synthesis of Mesoporous Silica from Rice Hull Carbon

作　　者：孙成高[1] 汤建良[1] 郑贤福[1] 夏适[1] 高文远[1] 谢超[1] 

机构地区：[1]化工部长沙设计研究院,湖南长沙410116

出　　处：《精细化工中间体》2011年第6期73-76,共4页Fine Chemical Intermediates

基　　金：长沙市科技攻关专项重点项目资助(K1106065-11)

摘　　要：以稻壳发电残渣稻壳炭的碱提取液为硅源,十六烷基三甲基溴化铵(CTAB)为模板剂,在碱性条件下通过溶胶-凝胶方法合成多孔二氧化硅前驱体。获得的前驱体采用萃取的方式脱除模板剂,合成产品采用低温氮气吸脱附、XRD、TEM、白度仪等手段进行了表征,确证得到的产品为高比表面、有序介孔二氧化硅。讨论了前处理和脱模方式对合成产物结构和性质的影响。Using alkali extract liquid from rice hull gasification power generation plant as the silica source and CTAB as the template agent,nano-porous silica precursors were synthesized using a sol-gel method.After the removal of the template by extracting,the final product was characterized by means of low temperature N2 adsorption/desorption,XRD,TEM and whiteness measurement,and confirmed to be an ordered mesoporous silica oxide with high surface area.The influences of pre-treating and template removal method were also discussed in this paper.

关 键 词：稻壳碳 介孔二氧化硅 前处理 

分 类 号：X71[环境科学与工程—环境工程]