Preparation of hydrophobically modified single-site Ti-containing mesoporous silica (TiSBA-15) and their enhanced catalytic performances

被引：24

作者：

Kamegawa, Takashi ^{[1
]}

Suzuki, Norihiko ^{[1
]}

Tsuji, Keita ^{[1
]}

Sonoda, Joji ^{[1
]}

Kuwahara, Yasutaka ^{[1
]}

Mori, Kohsuke ^{[1
]}

Yamashita, Hiromi ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, Suita, Osaka 5650871, Japan

来源：

CATALYSIS TODAY | 2011年 / 175卷 / 01期

关键词：

Single-site Ti-oxide moieties; Mesoporous silica; Hydrophobic modification; Epoxidation of olefin; BETA ZEOLITE; PHOTOCATALYSTS; OXIDATION; PHOTOLUMINESCENCE; ADSORPTION; FLUORINE; TI-MCM41;

D O I：

10.1016/j.cattod.2011.04.012

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hydrophobic modification of single-site Ti-oxide moieties containing mesoporous silica (TiSBA-15) surfaces was performed by using triethoxyfluorosilane (TEFS) as a silylation reagent. The pore structure as well as the high surface area of TiSBA-15 was retained even after modification of these surfaces. TiSBA-15 modified with suitable amount of TEFS exhibited higher catalytic performance for the selective oxidation of cyclooctene to 1,2-epoxy cyclooctane using aqueous H2O2 as an oxidant than the unmodified TiSBA-15. The improvement of surface hydrophilic-hydrophobic properties of TiSBA-15 is quite effective for the enhancement of catalytic activity. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：393 / 397

页数：5

共 6 条

[1] Synthesis and Unique Catalytic Performance of Single-Site Ti-Containing Hierarchical Macroporous Silica with Mesoporous Frameworks
Kamegawa, Takashi
Suzuki, Norihiko
Che, Michel
Yamashita, Hiromi
LANGMUIR, 2011, 27 (06) : 2873 - 2879
[2] Preparation of surface-silylated and benzene-bridged Ti-containing mesoporous silica for cyclohexene epoxidation
Huang, Yibin
Yuan, Pei
Wu, Zhaowei
Yuan, Xia
JOURNAL OF POROUS MATERIALS, 2016, 23 (04) : 895 - 903
[3] Catalytic performance of surface-silylated and Phenyl-bridged Ti-containing mesoporous silica for epoxidation of propylene
Zhang, Xiaoyu
Huang, Yibin
Guo, Yiman
Yuan, Xia
Jiao, Feipeng
MICROPOROUS AND MESOPOROUS MATERIALS, 2018, 262 : 251 - 257
[4] Synthesis of nano-sized Pt metal particle on Ti-containing mesoporous silica and efficient catalytic application for hydrogenation of nitrobenzene
Shironita, Sayoko
Mori, Kohsuke
Yamashita, Hiromi
ZEOLITES AND RELATED MATERIALS: TRENDS, TARGETS AND CHALLENGES, PROCEEDINGS OF THE 4TH INTERNATIONAL FEZA CONFERENCE, 2008, 174 : 1291 - 1294
[5] Design of Single-Site Ti Embedded Highly Hydrophilic Silica Thin Films with Macro-Mesoporous Structures
Kamegawa, Takashi
Masuda, Yuki
Suzuki, Norihiko
Horiuchi, Yu
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ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (12) : 4561 - 4565
[6] Enhanced hydrogenation activity of nano-sized Pd-Ni bimetal particles on Ti-containing mesoporous silica prepared by a photo-assisted deposition method
Fuku, Kojirou
Sakano, Toru
Kamegawa, Takashi
Mori, Kohsuke
Yamashita, Hiromi
JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (32) : 16243 - 16247

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