文献类型：期刊文献

英文题名：A new approach to prepare mesoporous silica using coal fly ash

作者：Li, Chen-chen[1];Qiao, Xiu-chen[1]

机构：[1]East China Univ Sci & Technol, Sch Resource & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2016

卷号：302

起止页码：388

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20162202443981);WOS:【SCI-EXPANDED(收录号:WOS:000382590900040)】；

基金：The work described in this paper was funded by the Shanghai Pujiang Program (PJ200700339), the Science and Technology Commission of Shanghai Municipality (10dz12004901), the Shanghai Leading Academic Discipline Project (B506) and the Innovation Program of Shanghai Municipal Education Commission (11CXY25), the National Natural Science Foundation of China (21176082), the Specialized Research Fund for the Doctoral Program of Higher Education (20110074110002) and the Fundamental Research Funds for the Central Universities (ECUST).

语种：英文

外文关键词：Mesoporous silica; Preparation; Large-scale; Acid-leaching; Reaction intensity

摘要：Even after decades of research, the preparation of mesoporous silica still depends on the sol-gel method. The major problem of sol-gel method is its infeasibility in industrial manufacturing. A large-scale preparation method is desired to meet the growing demand of mesoporous silica in multiple applications. A cost-effective and industrially feasible method was proposed to prepare mesoporous silica. The well developed acid leaching technology was used as a novel pore forming method for treating coal fly ash. And mesoporous silica with specific surface area as high as 585.02 m(2)/g and pore volume of 0.54 cm(3)/g was successfully prepared under a control of reaction parameters. Reaction intensity was introduced as a new parameter to describe reaction conditions and help explain the variation of pore structure and shape prepared under different reaction conditions. This method is feasible in large-scale manufacturing of mesoporous silica and will satisfy the great demand for its wide applications. (C) 2016 Elsevier B.V. All rights reserved.