In:
ChemCatChem, Wiley, Vol. 7, No. 20 ( 2015-10), p. 3279-3289
Abstract:
A novel heterostructured CuO/BiFeO 3 composite photocatalyst was successfully prepared through a simple combination of hydrothermal and impregnation process. CuO was uniformly deposited on the surface of BiFeO 3 particles with a p – n heterojunction formed at the interface between CuO and BiFeO 3 . CuO/BiFeO 3 heterostructured photocatalysts improved the UV/Vis spectral absorption ability, and exhibited enhanced photocatalytic activities for photodegradation of methylorange or a colorless compound (i.e., phenol) under visible light. In addition, after five recycles for the photodegradation of methylorange, CuO/BiFeO 3 did not exhibit significant loss of photocatalytic activity, confirming its stability and long‐time reusability. The enhanced photocatalytic activity could be mainly ascribed to the p – n heterojunction structure between CuO and BiFeO 3 , which could significantly facilitate the separation and transfer of photogenerated electron–hole pairs. On the basis of the calculated energy bands, the photocatalytic mechanism was also proposed.
Type of Medium:
Online Resource
ISSN:
1867-3880
,
1867-3899
DOI:
10.1002/cctc.201500634
Language:
English
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
2501161-3
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