Journal
SOLID STATE SCIENCES
Volume 95, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.solidstatesciences.2019.105935
Keywords
Hydrothermal; BiO2-x/NaBiO3 composites; Heterojunction; Photocatalytic activity
Funding
- Fundamental Research Funds for the Central Universities [2018XKQYMS21]
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BiO2-x/NaBiO3 hybrid composites were successfully synthesized via a facile hydrothermal method. In the composites, NaBiO3 nanosheets were evenly dispersed in BiO2-x hierarchical structure, whose content could be adjustable easily by controlling NaOH concentration. The as-synthesized composites presented higher photocatalytic activity than individual BiO2-x and NaBiO3, which could efficiently degrade methyl orange (MO), methylene blue (MB) and phenol under the visible light irradiation. Moreover, the composites exhibited commendable photo-stability. The enhanced photocatalytic performance was attributed to the combined effect of efficient separation of photogenerated charge carriers and enhanced visible light absorption. The trapping experiments confirmed that center dot O-2(-) and h(+) were the major reactive species during the photocatalytic process. The current research offered a facile route for designing high valence bismuth-contained hybrid materials with superb photocatalytic activity.
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