Synthesis, characterization, and photocatalytic properties of core/shell mesoporous silica nanospheres supporting nanocrystalline titania

被引：47

作者：

Cendrowski, K. ^{[1
]}

Chen, X. ^{[1
]}

Zielinska, B. ^{[1
]}

Kalenczuk, R. J. ^{[1
]}

Ruemmeli, M. H. ^{[2
,3
]}

Buechner, B. ^{[2
]}

Klingeler, R. ^{[4
]}

Borowiak-Palen, E. ^{[1
]}

机构：

[1] W Pomeranian Univ Technol, Inst Chem & Environm Engn, Ctr Knowledge Based Nanomat & Technol, Szczecin, Poland

[2] Leibniz Inst Solid State & Mat Res Dresden, D-01171 Dresden, Germany

[3] Tech Univ Dresden, D-01062 Dresden, Germany

[4] Heidelberg Univ, Kichhoff Inst Phys, Heidelberg, Germany

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2011年 / 13卷 / 11期

关键词：

Silica nanospheres; Mesoporous silica nanospheres; Titanium dioxide; Core/shell structure; Photocatalytic activity; TIO2 NANOTUBE ARRAYS; SPHERES; SHELL; CORE; DEGRADATION; ANATASE; WATER;

D O I：

10.1007/s11051-011-0307-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The facile bulk synthesis of silica nanospheres makes them an attractive support for the transport of chemical compounds such as nanocrystalline titanium dioxide. In this contribution we present a promising route for the synthesis of mesoporous silica nanospheres (m-SiO2) with diameter in range 200 nm, which are ideal supports for nanocrystalline titanium dioxide (TiO2). The detailed microscopic and spectroscopic characterizations of core/shell structure (m-SiO2/TiO2) were conducted. Moreover, the photocatalytic potential of the nanostructures was investigated via phenol decomposition and hydrogen generation. A clear enhancement of photoactivity in both reactions as compared to commercial TiO2-Degussa P25 catalyst is detected.

引用

页码：5899 / 5908

页数：10

共 29 条

[1] Silica nanotubes with mesoporous walls and various internal morphologies using hard/soft dual templates
Bian, Shao-Wei
Ma, Zhuo
Zhang, Le-Sheng
Niu, Fang
Song, Wei-Guo
[J]. CHEMICAL COMMUNICATIONS, 2009, (10) : 1261 - 1263
[2] Porous silica nanocapsules and nanospheres: Dynamic self-assembly synthesis and application in controlled release
Chen, Hongmin
He, Junhui
Tang, Huamin
Yan, Chunxiao
[J]. CHEMISTRY OF MATERIALS, 2008, 20 (18) : 5894 - 5900
[3] Preparation of monosize silica spheres and their crystalline stack
Chen, SL
[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1998, 142 (01) : 59 - 63
[4] A study on the structural properties of mesoporous silica spheres
Das, D. P.
Parida, K. M.
Mishra, B. K.
[J]. MATERIALS LETTERS, 2007, 61 (18) : 3942 - 3945
[5] Gas-phase photo-oxidation of organic compounds over nanosized TiO2 photocatalysts by various preparations
Deng, XY
Yue, YH
Gao, Z
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 39 (02) : 135 - 147
[6] Superparamagnetic high-magnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins
Deng, Yonghui
Qi, Dawei
Deng, Chunhui
Zhang, Xiangmin
Zhao, Dongyuan
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (01) : 28 - +
[7] Selective synthesis of borated meso-macroporous and mesoporous spherical TiO2 with high photocatalytic activity
Fei, Hailong
Liu, Yuping
Li, Yingpin
Sun, Pingchuan
Yuan, Zhongyong
Li, Baohui
Ding, Datong
Chen, Tiehong
[J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2007, 102 (1-3) : 318 - 324
[8] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE
FUJISHIMA, A
HONDA, K
[J]. NATURE, 1972, 238 (5358) : 37 - +
[9] Self-assembly of magnetite beads along multiwalled carbon nanotubes via a simple hydrothermal process
Jia, Baoping
Gao, Lian
Sun, Jing
[J]. CARBON, 2007, 45 (07) : 1476 - 1481
[10] Photocatalytic degradation of methanol on titania and titania-silica aerogels prepared by non-alkoxide sol-gel route
Kim, Won-Il
Suh, Dong Jin
Park, Tae-Jin
Hong, In-Kwon
[J]. TOPICS IN CATALYSIS, 2007, 44 (04) : 499 - 505

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