期刊
APPLIED SURFACE SCIENCE
卷 487, 期 -, 页码 734-742出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.04.258
关键词
Surface partial oxide; MoS2; MoO3; Photocatalytic hydrogen production
类别
资金
- Natural Science Foundation of Anhui Province [1808085ME129]
- Science and Technology Project of Anhui Province [1604a0802113]
- Major Projects of Natural Science Research in Anhui Colleges and Universities [KJ2018ZD050]
- Outstanding Young Talents Support Program in Colleges and Universities [gxyqZD2018056]
In this study, a novel MoO3@MoS2/TiO2 photocatalyst with higher photocatalytic hydrogen production efficiency was prepared via a hydrothermal followed by quenching method. The prepared composites were characterized by X-ray diffraction (XRD), Raman spectroscopy, UV-Vis Spectrophotometers, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and X-ray photoelectron spectroscopy (XPS). The photocatalytic performance for hydrogen evolution was also investigated. The results show that MoS2-340 degrees C/TiO2 exhibits excellent photocatalytic hydrogen production efficiency (4669 mu molg(-1)h(-)(1)), which is 5.8 times higher than that of unquenched MoS2/TiO2 under the same conditions. MoO3 on the surface and edges of large layered MoS2 creates more traps adjacent to the joint. More photogenerated electrons can be enriched during the photocatalytic reaction, which achieve the purpose of exposing more active sites.
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