硼在纳米晶氧化钛中的掺杂状态

赵燕宁 Zhao, Yanning, 刘岗 Liu, Gang, 孙成华 Sun, Chenghua, 李峰 Li, Feng, 逯高清 Lu, Gaoqing and 成会明 Cheng, Huiming (2008) 硼在纳米晶氧化钛中的掺杂状态. Cailiao Yanjiu Xuebao, 22 2: 125-129.

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Author 赵燕宁 Zhao, Yanning
刘岗 Liu, Gang
孙成华 Sun, Chenghua
李峰 Li, Feng
逯高清 Lu, Gaoqing
成会明 Cheng, Huiming
Title 硼在纳米晶氧化钛中的掺杂状态
Translated title Doping states of boron in nanocrystalline TiO2 powders
Language of Title chi
eng
Journal name Cailiao Yanjiu Xuebao   Check publisher's open access policy
Translated journal name Chinese Journal of Materials Research
Language of Journal Name chi
eng
ISSN 1005-3093
Publication date 2008-04-25
Sub-type Article (original research)
Open Access Status
Volume 22
Issue 2
Start page 125
End page 129
Total pages 5
Place of publication Shenyang, Liaoning, China
Publisher Zhongguo Kexueyuan Jinshu Yanjiusuo
Language chi
eng
Subject 2506 Metals and Alloys
1501 Accounting, Auditing and Accountability
2507 Polymers and Plastics
Formatted abstract
用两步水热合成方法制备硼掺杂纳米晶TiO2粉体, 研究了硼在纳米晶氧化钛中的掺杂状态. 结果表明, 一定硼源加入和水热过程是在TiO2粉体中实现有效硼掺杂的必要条件. 当硼含量较高时, 硼原子在TiO2表面形成具有可调节TiO2 能带结构的B-Ti-O表面掺杂态, 可有效提高TiO2的可见光吸收性能, 而且可见光吸收强度随着硼掺杂量的增大而提高.

The B-doped nanocrystalline TiO2 powders were synthesized through a two-step hydrothermal route, and the doping states of boron in nanocrystalline TiO2 powders were investigated. The results show that a certain amount of boron source and hydrothermal route are essential to create effective B-doping. Boron atoms with a higher boron concentration can interact with TiO2 surface and create a B-Ti-O surface doping state to modify the band structure of TiO2. The B-Ti-O structure is essential for good visible light absorption according to UV-visible absorption spectra. Furthermore, the absorption intensity of the doped TiO2 increases with the concentration of B- doping increasing.
Keyword Inorganic non-metallic materials
Nanocrystalline TiO2
Two-step hydrothermal route
B-doping
Visible light absorption
Q-Index Code CX
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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