Fabrication of Tunable Core-Shell Structured TiO2 Mesoporous Microspheres Using Linear Polymer Polyethylene Glycol as Templates

被引:101
作者
Cui, Yuming [1 ]
Liu, Lei [1 ]
Li, Bo [1 ]
Zhou, Xingfu [1 ]
Xu, Nanping [1 ]
机构
[1] Nanjing Univ Technol, Coll Chem & Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China
基金
中国国家自然科学基金;
关键词
HOLLOW SPHERES; PHOTOCATALYTIC ACTIVITY; TITANIA NANOTUBES; ZNO NANOSHEETS; ANATASE TIO2; SOLAR-CELLS; ROUTE; DEGRADATION; NANOSPHERES; ORGANIZATION;
D O I
10.1021/jp908613u
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Mesoporous core-shell structured titanium dioxide (TiO2) microspheres were successfully prepared by a facile one-step hydrothermal method using polyethylene glycol (PEG, MW 2000) as the soft template. The products were characterized in light of the morphology and chemical composition using scanning electron microscopy, transmission electron microscopy, and X-ray powder diffraction (XRD) techniques. The XRD patterns show that the direct hydrothermal synthesized product is anatase titanium dioxide. The Brunauer-Emmett-Teller surface area is 113.8 m(2)/g, and the average pore size is 5.78 nm. In addition, the morphology evolution of core-shell structured titanium dioxide with the different hydrothermal times was also studied. Research shows that the shell morphology and the core size of the core-shell TiO2 spheres can be easily tuned by controlling the hydrothermal time through the Ostwald ripening process. A possible growth mechanism of the mesoporous core-shell structured TiO2 hollow microspheres was also proposed in this paper.
引用
收藏
页码:2434 / 2439
页数:6
相关论文
共 42 条
[1]   Multilayered titania, silica, and Laponite nanoparticle coatings on polystyrene colloidal templates and resulting inorganic hollow spheres [J].
Caruso, RA ;
Susha, A ;
Caruso, F .
CHEMISTRY OF MATERIALS, 2001, 13 (02) :400-409
[2]   Green Fabrication of Hierarchical CuO Hollow Micro/Nanostructures and Enhanced Performance as Electrode Materials for Lithium-ion Batteries [J].
Gao, Shuyan ;
Yang, Shuxia ;
Shu, Jie ;
Zhang, Shuxia ;
Li, Zhengdao ;
Jiang, Kai .
JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (49) :19324-19328
[3]  
Greene LE, 2007, J PHYS CHEM C, V111, P18451, DOI 10.1021/jp0775931
[4]   Fabrication of mesoporous core-shell structured titania microspheres with hollow interiors [J].
Guo, CW ;
Cao, Y ;
Xie, SH ;
Dai, WL ;
Fan, KN .
CHEMICAL COMMUNICATIONS, 2003, (06) :700-701
[5]   A Visible Light-Driven Titanium Dioxide Photocatalyst Codoped with Lanthanum and Iodine: An Application in the Degradation of Oxalic Acid [J].
He, Zhiqiao ;
Xu, Xing ;
Song, Shuang ;
Xie, Lei ;
Tu, Jinjun ;
Chen, Jianmeng ;
Yan, Bing .
JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (42) :16431-16437
[6]   A self-templated approach to TiO2 microcapsules [J].
Hu, Yongxing ;
Ge, Jianping ;
Sun, Yugang ;
Zhang, Tierui ;
Yin, Yadong .
NANO LETTERS, 2007, 7 (06) :1832-1836
[7]   Preparation, structure, and magnetic properties of mesoporous magnetite hollow spheres [J].
Huang, ZB ;
Tang, FQ .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 281 (02) :432-436
[8]   Fabrication of Highly-Ordered TiO2 Nanotube Arrays and Their Use in Dye-Sensitized Solar Cells [J].
Kang, Tae-Sik ;
Smith, Adam P. ;
Taylor, Barney E. ;
Durstock, Michael F. .
NANO LETTERS, 2009, 9 (02) :601-606
[9]   Bamboo-Type TiO2 Nanotubes: Improved Conversion Efficiency in Dye-Sensitized Solar Cells [J].
Kim, Doohun ;
Ghicov, Andrei ;
Albu, Sergiu P. ;
Schmuki, Patrik .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (49) :16454-+
[10]   A low-band gap, nitrogen-modified titania visible-light photocatalyst [J].
Kisch, Horst ;
Sakthivel, Shanmugasundaram ;
Janczarek, Marcin ;
Mitoraj, Dariusz .
JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (30) :11445-11449