作为一种新型二维纳米材料,石墨烯因具有优异的电荷传输能力、大的比表面积、高可见光透过率、柔韧的结构以及化学稳定性等特点而被广泛关注。将石墨烯与半导体材料复合已成为新型光电催化电极材料的研究热点之一。综述了石墨烯基光电极的制备以及新型石墨烯基光电复合材料在有机污染物的降解、分解水制氢、还原CO2等领域的应用。最后,对石墨烯基半导体材料在光电催化领域存在的问题及其未来发展进行了展望。
As a new 2D nanomaterial,graphene has been widely concerned due to its excellent charge transport capability,large specific surface area,high visible light transmittance,flexible structure and chemical stability.The combination of graphene and semiconductor materials can effectively improve the optical properties,charge separation efficiency and photocatalytic performance of semiconductors,which has become one of the research hotspots of new photoelectrocatalytic electrode materials.Achievements of graphene in photoelectrocatalysis were reviewed,including the preparation of graphene-based photoelectrodes,and their application in degradation of organic pollutans,decomposition of water to hydrogen and CO2 reduction.The problems and prospects of graphene-based semiconductors in photoelectrocatalysis were also discussed.
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基金资助
国家自然科学基金面上项目(51672081);河北省自然科学基金青年基金项目(B2020209065)
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