期刊
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
卷 121, 期 -, 页码 163-171出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2018.05.023
关键词
Photocatalyst; BiOBr; Bi2S3; Rhodamine B; Tetracycline hydrochloride
资金
- National Natural Science Foundation of China [21471086, 91122012]
- Social Development Foundation of Ningbo [2014C50013]
- K. C. Wong Magna Fund in Ningbo University
To improve photocatalytic activity of 2D BiOBr nanosheets, Bi2S3 nanoparticles were introduced to fabricate the hybrid composite using co-precipitation method. The Bi2S3 loading 15 wt% amount of as-prepared composite shows the optimal visible light-driven photocatalytic activity for the degradation of Rhodamine B (RhB), tetracycline hydrochloride (TC) and ciprofloxacin (CIP). Radicals trapping experiments are further conducted to detect the reactive active species generated during the irradiation of BiOBr/Bi2S3-15 photocatalyst. It demonstrated that h(+) and center dot O-2(-) play the key role in photocatalytic degradation of pollutants. Photocurrent response, EIS and PL spectra reveal that the enhanced photocatalytic performance of BiOBr/ Bi2S3 hybrid material shows higher separation efficiency of the photo-generated electron-holes pairs.
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