Mesoporous titanosilicates with high loading of titanium synthesized in mild acidic buffer solution
文献类型：期刊论文
| 作者 | Tang, Jianting; Liu, Jian; Yang, Jie; Feng, Zhaochi; Fan, Fengtao; Yang, Qihua |
| 刊名 | journal of colloid and interface science
 |
| 出版日期 | 2009-07-15 |
| 卷号 | 335期号:2页码:203-209 |
| 关键词 | Mesoporous titanosilicates Buffer solution Ti-SBA-15 Framework titanium species UV resonance Raman |
| 产权排序 | 1;1 |
| 通讯作者 | 杨启华 |
| 英文摘要 | mesoporous titanosilicates with high titanium content were synthesized under mild acidic conditions (ph = 4.4, hac-naac buffer solution) by co-condensation of acetylacetone-modified titanium isopropoxide (ti(obu '')(3) (acac)) and mixture of sodium silicate with tetramethoxysilane (tmos) or tetraethoxysilane (teos) or tetrakis(2-hydroxyethyl)orthosilicate (egms), using block copolymer pluronic p123 as template. the combined results of xrd, n(2) sorption and tem show that the highly regular structure of the mesoporous titanosilicates can still be obtained when ti/si molar ratio in the final product is as high as 0.059. the results of uv-vis diffuse reflectance spectra and uv resonance raman spectra show that the framework titanium species are predominant in the mesoporous titanosilicates when ti/si molar ratio in the final product is less than 0.042. the mixture of sodium silicate and egms was proved to be the best silicon source for the synthesis of titanosilicates with ordered mesostructure and high titanium content. the efficiency of this synthetic method may be attributed to the mild acidic medium as well as the modified hydrolysis-condensation rate and hydrophility of the precursors. (c) 2009 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | molecular-sieves ; substituted sba-15 ; catalytic-activity ; photocatalytic properties ; visible-light ; silica ; copolymer ; mcm-41 ; nanoparticles ; epoxidation |
| 收录类别 | SCI |
| 原文出处 | false |
| 语种 | 英语 |
| WOS记录号 | WOS:000266644000007 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/101925]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Jianting,Liu, Jian,Yang, Jie,et al. Mesoporous titanosilicates with high loading of titanium synthesized in mild acidic buffer solution[J]. journal of colloid and interface science,2009,335(2):203-209. |
| APA | Tang, Jianting,Liu, Jian,Yang, Jie,Feng, Zhaochi,Fan, Fengtao,&Yang, Qihua.(2009).Mesoporous titanosilicates with high loading of titanium synthesized in mild acidic buffer solution.journal of colloid and interface science,335(2),203-209. |
| MLA | Tang, Jianting,et al."Mesoporous titanosilicates with high loading of titanium synthesized in mild acidic buffer solution".journal of colloid and interface science 335.2(2009):203-209. |
入库方式： OAI收割
来源：大连化学物理研究所
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