首页> 外文期刊>Materials Letters >Synthesis of mixed-phase uniformly infiltrated SBA-3-like in SBA-15 bimodal mesoporous silica from rice husk ash
【24h】

Synthesis of mixed-phase uniformly infiltrated SBA-3-like in SBA-15 bimodal mesoporous silica from rice husk ash

机译:由稻壳灰合成SBA-15双峰介孔二氧化硅中混合相均匀渗透的SBA-3-like

获取原文
获取原文并翻译 | 示例
       

摘要

The mixed-phase bimodal mesoporous silicas (BMS) were simply synthesized via sol-gel technique using rice husk ash-derived sodium silicate as a silica source, and Pluronic P123 and cetyltrimethyl ammonium bromide (CTAB) as the pore structure-directing agents. The gel solution composition in the synthesis process was based on SiO_2:Pluronic P123:CTAB:HCl:H_O molar ratio of 1:0.088:0.088:4:200. The effect of mixing sequences of starting materials on BMS structures was investigated. The phase separation among SBA-15, SBA-3-like porous silica and xerogel was found when the gel solutions of SBA-15 and SBA-3-like were prepared separately in the primary stage, whereas the mixed-phase uniformly infiltrated SBA-3-like in SBA-15 bimodal porous silica was successfully synthesized when CTAB was added into the SBA-15 gel solution and the secondary micelle structure was formed inside the primary SBA-15 framework.
机译:混合相双峰介孔二氧化硅(BMS)可以通过溶胶-凝胶技术简单地合成,使用稻壳灰衍生的硅酸钠作为二氧化硅源,并使用Pluronic P123和十六烷基三甲基溴化铵(CTAB)作为孔结构导向剂。合成过程中的凝胶溶液组成基于SiO 2 ∶Pluronic P 123 ∶CTAB ∶HCl ∶H_O摩尔比为1∶0.088∶0.088∶4∶200。研究了原材料混合顺序对BMS结构的影响。当在初始阶段分别制备SBA-15和SBA-3-like的凝胶溶液时,发现SBA-15,SBA-3-like多孔二氧化硅和干凝胶之间的相分离,而混合相均匀渗透SBA-将CTAB加入SBA-15凝胶溶液中,并在一级SBA-15骨架内形成二级胶束结构,可成功合成SBA-15双峰多孔二氧化硅中的3-like。

著录项

  • 来源
    《Materials Letters》 |2009年第15期|1303-1306|共4页
  • 作者单位

    Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand;

    Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand;

    Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand Center of Nanotechnology, Kasetsart University, Bangkok, Thailand;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    SBA-15; SBA-3-like; rice husk ash; sol-gel preparation; nanomaterials;

    机译:SBA-15;SBA-3样;稻壳灰;溶胶-凝胶制备;纳米材料;
  • 入库时间 2022-08-17 13:19:38

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号