Mixed-dimensional TiO₂ nanoparticles with MoSe₂ nanosheets for photochemical hydrogen generation

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• 作者：Yongzhen Shen ; Xiaohui Ren ; Guanghua Xu…
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：28
• 期：2
• 页码：2023-2028
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1573-482X
• 卷排序：28

文摘

Novel TiO₂/MoSe₂ catalyst has been synthesized via a hydrothermal method. The morphologies, microstructures and optical properties were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy, UV–Vis absorption spectroscopy, the result show that a large quantity of MoSe₂ nanosheets (NSs) were obtained from MoSe₂ bulks by lithium intercalatation way and TiO₂ nanoparticles has been grown on the NSs successfully. According to the photoelectrochemical measurements, the TiO₂/MoSe₂ hybrid nanostructures show the photocurrent density of 15 μA/cm2, which is much higher than bare TiO₂ of 8 μA/cm2 and bare MoSe₂ of 10 μA/cm2. It is proposed that type-II heteroshtucture of TiO₂/MoSe₂ can efficiently promote photocatalytic activity.