Preparations and Photoelectrochemical Properties of Phosphate Modified RGO-BiOBr Nanocomposites

Authors

Shuang-ying CHEN, Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China;
Zhi-jun LI, Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China;
Xu-liang ZHANG, Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China;
Kang HU, Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China;
Rui YAN, Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China;
Li-qiang JING, Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China;Follow

Corresponding Author

Li-qiang JING(jinglq@hlju.edu.cn)

Abstract

The RGO-BiOBr nanocomposites have been successfully synthesized by a hydrothermal process, and then modified with phosphorous acids. The photoelectrochemical properties of the fabricated RGO-BiOBr nanocomposite films were studied. The results indicate that the photocurrent densities of RGO-BiOBr were much larger compared with those of the bare BiOBr, and interestingly, the photocurrent densities were further improved after phosphate modification. Based on the analyses of the produced hydroxyl radical amounts, the enhanced photocurrent densities could be attributed to the introduction of RGO and to the formed negative fields of modified phosphate groups, which are favorable for electrons to be transferred and for holes to be trapped, respectively, leading to promoted charge separation.

Graphical Abstract

Keywords

RGO-BiOBr nano-composite, Phosphoric acid modification, Photogenerated charge property, Photoelectrochemistry

DOI Link

https://doi.org/10.13208/j.electrochem.160144

Publication Date

2016-08-29

Online Available Date

2016-04-05

Revised Date

2016-03-21

Received Date

2016-02-24

Recommended Citation

Shuang-ying CHEN, Zhi-jun LI, Xu-liang ZHANG, Kang HU, Rui YAN, Li-qiang JING. Preparations and Photoelectrochemical Properties of Phosphate Modified RGO-BiOBr Nanocomposites[J]. Journal of Electrochemistry, 2016 , 22(4): 390-396.
DOI: 10.13208/j.electrochem.160144
Available at: https://jelectrochem.xmu.edu.cn/journal/vol22/iss4/7