具有三维网状结构的石墨相氮化碳/还原氧化石墨烯/钯复合材料的合成及可见光催化性能<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.020.001

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Abstract Graphitic carbon nitride (g-C₃N₄) has been considered as an efficient metal-free semiconductor photocataltyst. To further improve its photocatalytic activity, we have prepared the three-dimensional network-structured g-C₃N₄/reduced graphene oxi-de (rGO)/palladium nanoparticles (Pd NPs) composites by the pyrolysis-hydrothermal two-step method. The composite consists of ultrathin sheets which are decorated with Pd NPs (diameter:~10 nm). g-C₃N₄/rGO/Pd NPs composite shows a broad absorption with an edge at ~460 nm and then an enhanced photoabsorption with the increase of wavelength (460—800 nm). The photocatalytic activity of g-C₃N₄/rGO/Pd NPs composites was measured by the degradation of RhB solution. Under the irradiation of visible-light (λ>400 nm), g-C₃N₄/rGO/Pd NPs composites can degrade 90% RhB in 140 min. In addition, the cycling experiment demonstrates that the composite possesses good photocatalytic stability. Therefore, g-C₃N₄/rGO/Pd NPs composites displays a potential as an efficient and stable photocatalyst for water-purification application.

Key words： graphitic carbon nitride reduced graphene oxide palladium nanoparticles photocatalysis visible light

Published: 25 October 2017 Online: 2018-05-05

CLC number:

TB321

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	Articles by authors
	LOU Dongdong
	ZHANG Lisha
	WANG Haifeng
	CHEN Zhigang

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LOU Dongdong,ZHANG Lisha,WANG Haifeng, et al. Synthesis of Three-dimensional Network-structured g-C₃N₄/rGO/Pd Composites with Excellent Visible-light Photocatalytic Performances[J]. Materials Reports, 2017, 31(20): 1-5.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.020.001 OR https://www.mater-rep.com/EN/Y2017/V31/I20/1

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