第 41 卷第 6 期Vol. 41 No. 6
2011 年 12 月Dec 2011

所属栏目:功能材料

由稻壳炭合成介孔二氧化硅
孙成高,汤建良,郑贤福,夏 适,高文远,谢 超 (化工部长沙设计研究院,湖南 长沙 410116)
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。
关键词:稻壳碳;介孔二氧化硅;前处理
中图分类号:X71  文献标识码:A  文章编号:1009-9212(2011)06-0073-04
Synthesis of Mesoporous Silica from Rice Hull Carbon
SUN Cheng-gao,TANG Jian-liang,ZHEN Xian-fu,XIA Shi,GAO Wen-yuan1,XIE Chao (Changsha Design and Research Institute,the Ministry of Chemical Industry,Changsha 410116,China)
Abstract: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.
Key words:rice hull carbon;mesoporous silica;pre-treating
基金项目:长沙市科技攻关专项重点项目资助(K1106065-11)。
作者简介:孙成高(1981-),男,湖南宁乡人,工程师,博士,研究方向:无机多孔材料和盐湖化学。(E-mail:kasberg.sun@gmail.com)
收稿日期: 2011-12-1