کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1504317 | 1510988 | 2014 | 6 صفحه PDF | دانلود رایگان |

• Black BiOCl with disorder surface structure was successfully prepared by a facile Fe reduction method.
• The as-prepared black sample exhibited a broad absorption covered the whole visible light region.
• The black sample exhibited higher photocatalytic activity than white BiOCl under visible light irradiation.
• High-resolution TEM images revealed disorder surface structure could lead to the formation of black BiOCl.
Black bismuth oxychloride (BiOCl) with disordered surface structure has been prepared by a facile Fe reduction method and successfully used as a visible-light photocatalyst. XRD and FESEM results showed that black BiOCl has pure BiOCl phase with plate-like structure. The as-prepared black sample exhibited a broad absorption covered the whole visible light region. The high-resolution TEM images revealed the disordered surface structure, which could be the reason for the black color of BiOCl. The disordered surface was not only responsible for the visible-light absorption but also played a vital role in improving the separation of photo-induced electrons and holes. Methyl orange (MO) photocatalytic degradation experiments showed that the black sample exhibited higher photocatalytic activity than the pristine BiOCl under visible light irradiation. A possible formation mechanism of black BiOCl under Fe reduction was also proposed in our research work.
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Journal: Solid State Sciences - Volume 34, August 2014, Pages 107–112