期刊
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
卷 160, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2021.110339
关键词
Z-Scheme heterojunction; (001)-TiO2; Graphite carbon nitride; Photocatalytic activity
资金
- National Natural Science Foundation of China [62004155]
- Independent Research and Development project of State Key Laboratory of Green Building in Western China [LSZZ202118, LSZZ202117]
- Natural Science Basic Research Plan in Shaanxi Province [2020JM-482]
The Z-scheme heterojunction was successfully constructed between (001)-TiO2 and g-C3N4 via electrostatic self-assembly, improving the separation efficiency of photogenerated electron-hole pairs and enhancing the visible-light photocatalytic degradation of Rhodamine B.
Z-scheme heterojunction was successfully constructed with (001)-TiO2 and g-C3N4 via electrostatically selfassemble. Z-Scheme heterojunction nanocomposites improve separation efficiency of photogenerated e (-)h(+) pairs, which strengthen visible photocatalytic elimination for Rhodamine B. The g-C3N4 with narrower bandgap not only forms a stable phase interface with (001)-faceted TiO2 nanosheets, but also provides high productivity of photo-excited charge carries. Meanwhile, the layered graphite carbon in g-C3N4 owns an excellent ability to transfer electrons. The RhB degradation rate of the g-C3N4/(001)-faceted TiO2 hybrid reach up to 99.9% under the visible light for 2 h. This study provided an efficient g-C3N4/(001)-faceted TiO2 photocatalyst with Z-Scheme heterojunction structure has emerged as a promising approach to perfect the photocatalytic capacity of photocatalysts.
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