Corresponding Author

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


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


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

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[1] Liu Z S, Wu B T, Zhao Y L, et al. Solvothermal synthesis and photocatalytic activity of Al-doped BiOBr microspheres[J]. Ceramics International, 2014, 40(4): 5597-5603.

[2] Bo C, Zhou H, Zhang F, et al. Visible light photocatalytic performance of hierarchical BiOBr microspheres synthesized via a reactable ionic liquid[J]. Materials Science in Semiconductor Processing, 2014, 42: 58-61.

[3] Gao M C, Zhang D F, Pu X P, et al. BiOBr photocatalysts with tunable exposing proportion of {001} facets: Combustion synthesis, characterization, and high visible-light photocatalytic properties[J]. Materials Letters, 2015, 140: 31-34.

[4] Zhang J, Shi F J, Lin J, et al. Self-Assembled 3-D Architectures of BiOBr as a Visible Light-Driven Photocatalyst[J]. Chemistry of Materials, 2008, 20(9): 2937-2941.

[5] Shang M, Wang W Z, Zhang L, Preparation of BiOBr lamellar structure with high photocatalytic activity by CTAB as Br source and template[J]. Journal of Hazardous Materials, 2009, 167(1-3): 803-809.

[6] Kong D S(孔德生), Wang J(王静), Zhang X D(张学迪), et al. Sodium carbonate catalyzed photoelectrochemical water splitting over TiO2 nanotubes photoanode[J]. Journal of Electrochemistry (电化学), 2013, 19(1): 71-78.

[7] Leng W H(冷文华). Dynamics of photocarriers during photoelectrochemical water splitting by combination of photoelectrochemistry and transient absorption spectroscopy[J]. Journal of Electrochemistry (电化学), 2014, 20(4): 317-321.

[8] Wang P, Zhai Y M, Wang D J, et al. Synthesis of reduced graphene oxide-anatase TiO2 nanocomposite and its improved photo-induced charge transfer properties[J]. Nanoscale, 2011, 3(4): 1640-1645.

[9] Williams G, Kamat P V. Graphene-semiconductor nanocomposites: excited-state interactions between ZnO nanoparticles and grapheme oxide[J]. Langmuir, 2009, 25(24): 13869-13873.

[10] Williams G, Seger B, Kamat V. TiO2-graphene nanocomposites. UV-assisted photocatalytic reduction of grapheme oxide[J]. Nanoscale, 2008, 2(7): 1487-1491.

[11] Huang X, Qi X Y, Boey F, et al, Graphene-based composites[J]. Chemical Society Reviews, 2012, 41(2): 666-686.

[12] V.M. Aroutiounian, V.M. Arakelyan, G.E. Shahnazaryan. Metal oxide photoelectrodes for hydrogen generation using solar radiation-driven water splitting[J]. Solar Energy, 2005, 78(6): 581-592.

[13] Frank E. Osterloh. Inorganic materials as catalysts for photochemical splitting of water[J]. Chemistry Materials, 2008, 20(1): 35-54.

[14] Li Xiao-e, Alex N.M. Green, Saif A. Haque, et al. Light-driven oxygen scavenging by titania/polymer nanocomposite films[J]. Journal of Photochemistry and Photobiology A: Chemistry, 2004, 162(2-3): 253-259.

[15] Xie M Z, Bian J, Qu Y, et al. The promotion effect of surface negative electrostatic field on the photogenerated charge separation of BiVO4 and its contribution to the enhanced PEC water oxidation[J]. Chemical Communications, 2015, 51(14): 2821-2823.

[16] Jing L Q, Zhou J, James R.D, et al. Dynamics of photogenerated charges in the phosphate modified TiO2 and the enhanced activity for photoelectrochemical water splitting[J]. Energy Environmental Science, 2012, 5(4): 6552-6558.

[17] Jiang J, Zhao K, Xiao X, et al. Synthesis and facet-dependent photoreactivity of BiOCl single-crystalline nanosheets[J]. Journal of the American Chemical Society, 2012, 134(10): 4473-4476.

[18] Hummers J W S, Offeman R E. Preparation of graphitic oxide[J]. Journal of the American Chemical Society, 1958, 80(6): 1339.

[19] Xie M Z(谢明政), Feng Y J(冯玉洁), Luan P(栾鹏), et al. N, S-Co doped TiO2: synthesis via hydrolysis-solvothermal process and visible photocatalytic activity[J]. Chinese Journal of Inorganic Chemistry(无机化学学报), 2014, 30(9): 2081-2086.

[20] Li J, Yu Y, Zhang L Z, et al. Bismuth oxyhalide nanomaterials: layered structures meet photocatalysis[J]. Nanoscale, 2014, 6(15): 8473-8488.

[21] Zhang W D, Dong F, Xiong T, et al. Synthesis of BiOBr€“graphene and BiOBr€“graphene oxide nanocomposites with enhanced visible light photocatalytic performance[J]. Ceramics International, 2014, 40(7): 9003-9008.

[22] Vadivel S, et al. Solvothermal synthesis of Sm-doped BiOBr/RGO composite as an efficient photocatalytic material for methyl orange degradation[J]. Materials Letters, 2014, 128: 287-290.

[23] Tu X M, Liu S L, Chen G X, et al. One-pot synthesis, characterization, and enhanced photocatalytic activity of a BiOBr-graphene composite[J]. Chemistry-A European Journal, 2012, 18(45): 14359-14366.

[24] Liu C, Jing L Q, He L M, et al. Phosphate-modified graphitic C3N4 as efficient photocatalyst for degrading colorless pollutants by promoting O2 adsorption[J]. Chemical Communications, 2014, 50(16): 1999-2001.

[25] Liu J Y, Bai Y, Luo P Y, et al. One-pot synthesis of graphene€“BiOBr nanosheets composite for enhanced photocatalytic generation of reactive oxygen species[J]. Catalysis Communications, 2013, 42: 58-61.



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