Journal
MATERIALS RESEARCH EXPRESS
Volume 5, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/aaa9ee
Keywords
Cu2O; BiOI; semiconductor; nanocomposites; photocatalytic
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Funding
- National Natural Science Foundation of China [61107055]
- Specialized Research Fund for the Doctoral Program of Jiangsu University of Technology [KYY17011]
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Novel BiOI/Cu2O composites were designed and synthesized for the first time by coupling reduction method at low temperature. The samples were characterized by XRD, XPS, SEM, EDS, HRTEM, UV-vis (DRS), FTIR and photo-electro-chemical (PEC) analysis. Results showed that the BiOI/Cu2O composites consisted of three-dimensional (3D), hierarchical cauliflower-like structure composed of BiOI nanosheet and Cu2O cubic submicrometer structure, the composite absorption band broadened, and the absorption intensity in the visible region strengthened. And the composites exhibited an excellent photocatalytic performance, which might be attributed to the improvement of the composite absorption and effective charge separation in BiOI/Cu2O composites. In addition, the possible photocatalytic mechanism was proposed.
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