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In situ growth of lamellar ZnTiO3 nanosheets on TiO2 tubular array with enhanced photocatalytic activity
被引:52
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
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.
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页码:20203 / 20209
页数:7
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