Journal
CHEMICAL PHYSICS LETTERS
Volume 736, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2019.136805
Keywords
N-n heterojunction; Oxygen vacancies; Tetracycline hydrochloride; Photocatalysis
Funding
- International S&T Cooperation Program of Wuhan [2017030209020255]
- Creative Research Groups Program of the Natural Science Foundation of Hubei [2017CFA026]
- Natural Science Foundation of Hubei [2018CFB682]
- Teaching Reform Project of the Subcommittee of Teaching Guidance for Water Supply and Drainage Science and Engineering Specialty of the Ministry of Education [GPSJZW2019-32]
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La(OH)(3)/BiOCl n-n heterojunction (BCL) was successfully fabricated by facile microwave technique. Photocatalytic performance experiments confirmed that BCL-20 can degrade 20 mg/L tetracycline hydrochloride (TC-HCl) about 85% in 60 min, which is 2 and 0.5 times higher than that of BiOCl and La(OH)(3), respectively. The photocatalytic mechanism reveals that the co-effect of oxygen vacancies (OVs) and rebuilt internal electric field induced by heterostructure not only broaden the light-responsive range but also augment the separation efficiency of photogenerated carriers, thus improving the photocatalytic properties of BCL. This work provides a new avenue for improving the photocatalytic performance of Bi-based photocatalysts by heterojunction and OVs.
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