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Effect of Surface Defect States on Valence Band and Charge Separation and Transfer Efficiency.

ABSTRACT: Both energy band and charge separation and transfer are the crucial affecting factor for a photochemical reaction. Herein, the BiOCl nanosheets without and with surface bismuth vacancy (BOC, V-BOC) are prepared by a simple hydrothermal method. It is found that the new surface defect states caused by bismuth vacancy have greatly up-shifted the valence band and efficiently enhanced the separation and transfer rates of photogenerated electron and hole. It is amazing that the photocatalytic activity of V-BOC is 13.6 times higher than that of BOC for the degradation methyl orange (MO). We can develop an efficient photocatalyst by the introduction of defects.

SUBMITTER: Xu J

PROVIDER: S-EPMC5009424 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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Effect of Surface Defect States on Valence Band and Charge Separation and Transfer Efficiency.

Xu Juan J Teng Yiran Y Teng Fei F

Scientific reports 20160902

Both energy band and charge separation and transfer are the crucial affecting factor for a photochemical reaction. Herein, the BiOCl nanosheets without and with surface bismuth vacancy (BOC, V-BOC) are prepared by a simple hydrothermal method. It is found that the new surface defect states caused by bismuth vacancy have greatly up-shifted the valence band and efficiently enhanced the separation and transfer rates of photogenerated electron and hole. It is amazing that the photocatalytic activity ...[more]

PMID: 27586149

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