Encapsulation of titanium(IV) oxide particles in hollow silica for size-selective photocatalytic reactions

被引：66

作者：

Ikeda, Shigeru

Ikoma, Yoshimitsu

Kobayashi, Hideyuki

Harada, Takashi

Torimoto, Tsukasa

Ohtani, Bunsho

Matsumura, Michio

机构：

[1] Osaka Univ, Res Ctr Solar Energy Chem, Toyonaka, Osaka 560, Japan

[2] Nagoya Univ, Grad Sch Engn, Dept Crystalline Mat Sci, Nagoya, Aichi 464, Japan

[3] Hokkaido Univ, Catalysis Res Ctr, Sapporo, Hokkaido 0010021, Japan

来源：

CHEMICAL COMMUNICATIONS | 2007年 / 36期

关键词：

D O I：

10.1039/b704468b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A core-shell composite of TiO2 particles encapsulated in a hollow silica was fabricated, and the core-shell composite showed size-selective photocatalytic activity for decomposition of organics without reducing the intrinsic activity of the naked TiO2 core.

引用

收藏

页码：3753 / 3755

页数：3

相关论文

共 25 条

[1] Tuning the photocatalytic activity of titanium dioxide by encapsulation inside zeolites exemplified by the cases of thianthrene photooxygenation and horseradish peroxidase photodeactivation [J].

Cosa, G ;

Galletero, MS ;

Fernández, L ;

Márquez, F ;

García, H ;

Scaiano, JC .

NEW JOURNAL OF CHEMISTRY, 2002, 26 (10) :1448-1455

[2] Transition-metal-substituted titania-loaded MCM-41 as photocatalysts for the degradation of aqueous organics in visible light [J].

Davydov, L ;

Reddy, EP ;

France, P ;

Smirniotis, PG .

JOURNAL OF CATALYSIS, 2001, 203 (01) :157-167

[3] HETEROGENEOUS PHOTOCATALYSIS [J].

FOX, MA ;

DULAY, MT .

CHEMICAL REVIEWS, 1993, 93 (01) :341-357

[4]

Fujishima A., 1999, TIO2 PHOTOCATALYSIS, P176

[5] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].

HOFFMANN, MR ;

MARTIN, ST ;

CHOI, WY ;

BAHNEMANN, DW .

CHEMICAL REVIEWS, 1995, 95 (01) :69-96

[6] Asymmetrically modified titanium(IV) oxide particles having both hydrophobic and hydrophilic parts of their surfaces for liquid-liquid dual-phase photocatalytic reactions [J].

Ikeda, S ;

Kowata, Y ;

Ikeue, K ;

Matsumura, M ;

Ohtani, B .

APPLIED CATALYSIS A-GENERAL, 2004, 265 (01) :69-74

[7] Preparation of platinized strontium titanate covered with hollow silica and its activity for overall water splitting in a novel phase-boundary photocatalytic system [J].

Ikeda, Shigeru ;

Hirao, Ko ;

Ishino, Satoru ;

Matsumura, Michio ;

Ohtani, Bunsho .

CATALYSIS TODAY, 2006, 117 (1-3) :343-349

[8] Ligand-free platinum nanoparticles encapsulated in a hollow porous carbon shell as a highly active heterogeneous hydrogenation catalyst [J].

Ikeda, Shigeru ;

Ishino, Satoru ;

Harada, Takashi ;

Okamoto, Natsumi ;

Sakata, Takao ;

Mori, Hirotaro ;

Kuwabata, Susumu ;

Torimoto, Tsukasa ;

Matsumura, Michio .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (42) :7063-7066

[9] Direct nanocomposite of crystalline TiO2 particles and mesoporous silica as a molecular selective and highly active photocatalyst [J].

Inumaru, K ;

Kasahara, T ;

Yasui, M ;

Yamanaka, S .

CHEMICAL COMMUNICATIONS, 2005, (16) :2131-2133

[10] Synthesis and crystallization of hybrid spherical colloids composed of polystyrene cores and silica shells [J].

Lu, Y ;

McLellan, J ;

Xia, YN .

LANGMUIR, 2004, 20 (08) :3464-3470