Construction of 1D/1D WO3 Nanorod/TiO2 Nanobelt Hybrid Heterostructure for Photocatalytic Application

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摘要 In this work, well-defined 1D/1D WO3 nanorod/TiO2 nanobelt (WNR/TNB) hybrid heterostructure was fabricated by a simple electrostatic self-assembly method. The structure-property correlation was clarified by characterizing the crystal phases, morphologies, optical properties, photoluminescence and photocatalytic performances of the WNR/TNB heterostructures. It was demonstrated that photocatalytic performances of WNR/TNB heterostructure toward mineralization was superior to blank TNB, WNR and randomly mixed counterparts under simulated solar light irradiation, owing predominantly to the intimate interfacial contact between WNR and TNB, forming intimately integrated heterojunction, which promotes the spatial charge carriers transfer and electron relay, hence prolonging the lifetime of photogenerated electron-hole pairs. Moreover, photocatalytic mechanism was elucidated. It is anticipated that our work would provide an alternative strategy to construct diverse heterostructured photocatalysts for solar energy conversion.

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	张俊玉
	廖洪钢
	孙世刚

关键词 ： TiO2 nanobelt, WO3 nanorod, photocatalysis, intimate interfacial contact

Abstract：In this work, well-defined 1D/1D WO3 nanorod/TiO2 nanobelt (WNR/TNB) hybrid heterostructure was fabricated by a simple electrostatic self-assembly method. The structure-property correlation was clarified by characterizing the crystal phases, morphologies, optical properties, photoluminescence and photocatalytic performances of the WNR/TNB heterostructures. It was demonstrated that photocatalytic performances of WNR/TNB heterostructure toward mineralization was superior to blank TNB, WNR and randomly mixed counterparts under simulated solar light irradiation, owing predominantly to the intimate interfacial contact between WNR and TNB, forming intimately integrated heterojunction, which promotes the spatial charge carriers transfer and electron relay, hence prolonging the lifetime of photogenerated electron-hole pairs. Moreover, photocatalytic mechanism was elucidated. It is anticipated that our work would provide an alternative strategy to construct diverse heterostructured photocatalysts for solar energy conversion.

Key words： TiO2 nanobelt WO3 nanorod photocatalysis intimate interfacial contact

收稿日期: 2019-07-29 出版日期: 2020-06-10

基金资助:This project was supported by the National Natural Science Foundation of China (Nos. 21673198, 21373008 and 21621091)

通讯作者: hgliao@xmu.edu.cn and sgsun@xmu.edu.cn E-mail: hgliao@xmu.edu.cn and sgsun@xmu.edu.cn

引用本文:

张俊玉;廖洪钢;孙世刚. Construction of 1D/1D WO₃Nanorod/TiO₂ Nanobelt Hybrid Heterostructure for Photocatalytic Application[J]. 结构化学, 2020, 39(6): 1019-1028.
ZHANG Jun-Yu;LIAO Hong-Gang;SUN Shi-Gang. Construction of 1D/1D WO₃ Nanorod/TiO₂ Nanobelt Hybrid Heterostructure for Photocatalytic Application. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2020, 39(6): 1019-1028.

链接本文:

http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2020/V39/I6/1019

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