In situ growth of lamellar ZnTiO3 nanosheets on TiO2 tubular array with enhanced photocatalytic activity

被引：51
作者：
Cai, Yunyu [1 ,2 ]
Ye, Yixing [1 ,2 ]
Tian, Zhenfei [1 ,2 ]
Liu, Jun [1 ,2 ]
Liu, Yishu [3 ]
Liang, Changhao [1 ,2 ]
机构：
[1] Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
[2] Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China
[3] West Anhui Univ, Anhui Prov Lab Biomimet Sensor & Detecting Techno, Luan 237015, Anhui, Peoples R China
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2013年 / 15卷 / 46期
基金：
中国国家自然科学基金;
关键词：
PULSED-LASER ABLATION; NANOTUBE-ARRAYS; HETEROJUNCTION; LIQUID; NANOPARTICLES; SURFACE; NANOMATERIALS; FABRICATION; STRATEGY; BEHAVIOR;
D O I：
10.1039/c3cp53307g
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：
We report a self-sacrificed in situ growth design toward preparation of ZnTiO3-TiO2 heterojunction structure. Highly reactive zinc oxide colloidal particles derived by laser ablation in liquids can react with TiO2 nanotubes to form a lamellar ZnTiO3 nanosheet structure in a hydrothermal-treatment process. Such hybrid structural product was characterized by X-ray diffraction, scanning and transmission electron microscopy, UV-vis diffuse reflection spectroscopy and X-ray photoelectron spectroscopy. The enhanced photocatalytic activity of the hybrid structure toward degradation of methyl orange (MO) and pentachlorophenol (PCP) molecules was demonstrated and compared with single phase TiO2, as a result of the efficient separation of light excited electrons and holes at the hetero-interfaces in the two semiconductors.
引用
收藏
页码：20203 / 20209
页数：7
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