Enhanced photocatalytic activity of NaBH4 reduced BiFeO3 nanoparticles for rhodamine B decolorization | |
Di, Lijing1,2; Yang, Hua1![]() ![]() | |
2017-09-22 | |
发表期刊 | Materials
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ISSN | 1996-1944 |
卷号 | 10期号:10 |
摘要 | In this work, oxygen vacancies were introduced onto the surface of BiFeO3 nanoparticles by NaBH4 reduction method to yield oxygen-deficient BiFeO3-x samples. Comprehensive analysis on the basis of high-resolution transmission electron microscopy (HRTEM) observation and X-ray photoelectron spectrum (XPS) confirms the existence of surface oxygen vacancies on the BiFeO3-x nanoparticles. The photocatalytic activity of as-prepared BiFeO3-x samples was evaluated by the decolorization of rhodamine B (RhB) under simulated sunlight irradiation. The experimental results indicate that the photocatalytic activity of samples is highly related to the NaBH4 reduction time, and the BiFeO3-x sample reduced for 40 min exhibits the highest photocatalytic efficiency, which is much higher than that of pristine BiFeO3 nanoparticles. This can be explained by the fact that the surface oxygen vacancies act as photoinduced charges acceptors and adsorption sites suppress the recombination of photogenerated charges, leading to an increasing availability of photogenerated electrons and holes for photocatalytic reaction. In addition, the obtained BiFeO3-x sample exhibits good photocatalytic reusability. © 2017 by the authors. Licensee MDPI, Basel, Switzerland. |
关键词 | High resolution transmission electron microscopy Iron compounds Nanoparticles Oxygen vacancies Photocatalysis Photocatalytic activity Photoelectron spectroscopy Reusability Rhodium compounds Sodium Borohydride BiFeO3 Comprehensive analysis Photocatalytic efficiency Photocatalytic reactions Photogenerated charge Photogenerated electrons Surface oxygen vacancies X ray photoelectron spectra |
DOI | 10.3390/ma10101118 |
收录类别 | EI ; SCIE |
语种 | 英语 |
资助项目 | Youth Science Foundation of Qinghai Normal University[15ZR07] |
WOS研究方向 | Materials Science |
WOS类目 | Materials Science, Multidisciplinary |
WOS记录号 | WOS:000414639000013 |
出版者 | MDPI AG, Postfach, Basel, CH-4005, Switzerland |
EI入藏号 | 20173904214126 |
EI主题词 | Bismuth compounds |
EI分类号 | 741.1 Light/Optics - 741.3 Optical Devices and Systems - 761 Nanotechnology - 933 Solid State Physics - 933.1 Crystalline Solids |
来源库 | Compendex |
分类代码 | 741.1 Light/Optics - 741.3 Optical Devices and Systems - 761 Nanotechnology - 933 Solid State Physics - 933.1 Crystalline Solids |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/114668 |
专题 | 理学院 机电工程学院 |
通讯作者 | Yang, Hua |
作者单位 | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Non Ferrous Me, Lanzhou 730050, Gansu, Peoples R China; 2.Qinghai Normal Univ, Coll Phys & Elect Informat Engn, Xining 810008, Qinghai, Peoples R China |
第一作者单位 | 兰州理工大学 |
通讯作者单位 | 兰州理工大学 |
第一作者的第一单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Di, Lijing,Yang, Hua,Xian, Tao,et al. Enhanced photocatalytic activity of NaBH4 reduced BiFeO3 nanoparticles for rhodamine B decolorization[J]. Materials,2017,10(10). |
APA | Di, Lijing,Yang, Hua,Xian, Tao,&Chen, Xiujuan.(2017).Enhanced photocatalytic activity of NaBH4 reduced BiFeO3 nanoparticles for rhodamine B decolorization.Materials,10(10). |
MLA | Di, Lijing,et al."Enhanced photocatalytic activity of NaBH4 reduced BiFeO3 nanoparticles for rhodamine B decolorization".Materials 10.10(2017). |
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