期刊
CERAMICS INTERNATIONAL
卷 43, 期 6, 页码 5329-5333出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2016.11.129
关键词
Electrodeposition; ZnO nanoflake; Carbon quantum dots (CQDs); Photoelectrochemistry
资金
- National Natural Science Foundation of China [51574047]
- Natural Science Foundation of Jiangsu Province [BK20160277, BK20150259]
We report a promising simple strategy for improving the performance of the photoanode for photoelectrochemical (PEC) water oxidation. Three-dimentional hierarchical ZnO nanoflake arrays with abundant porosity and small thickness on fluorine-doped tin oxide glass substrate (FTO) was prepared with electro-deposition. The ZnO nanoflake-based photoanode exhibits superior photoresponse and PEC capability. Furthermore, the ZnO photoanode sensitized by carbon quantum dots (CQDs) can further PEC performance due to the narrower bandgap of CQDs and the improved efficiency of photogenerated electrons transfer from CQDs to ZnO nanostructures. The morphology and properties of the sample were examined by scanning electron microscopy (SEM), cross-section SEM, UV vis spectra, X-ray photoelectron spectra (XPS), FT-IR, Xray diffractometry (XRD) and electrical measurements.
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