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Construction of SnS2-SnO2 heterojunctions decorated on graphene nanosheets with enhanced visible-light photocatalytic performance
Shanghai Univ, Peoples R China.
Shanghai Univ, Peoples R China.
Shanghai Univ, Peoples R China.
Shanghai Univ, Peoples R China; Chizhou Univ, Peoples R China.
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2019 (English)In: ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY, ISSN 2053-2296, Vol. 75, p. 812-821Article in journal (Refereed) Published
Abstract [en]

Heterostructures formed by the growth of one kind of nanomaterial in/on another have attracted increasing attention due to their microstructural characteristics and potential applications. In this work, SnS2-SnO2 heterostructures were successfully prepared by a facile hydrothermal method. Due to the enhanced visible-light absorption and efficient separation of photogenerated holes and electrons, the SnS2-SnO2 heterostructures display excellent photocatalytic performance for the degradation of rhodamine (RhB) under visible-light irradiation. Additionally, it is found that the introduction of graphene into the heterostructures further improved photocatalytic activity and stability. In particular, the optimized SnS2-SnO2/graphene photocatalyst can degrade 97.1% of RhB within 60 min, which is about 1.38 times greater than that of SnS2-SnO2 heterostructures. This enhanced photocatalytic activity could be attributed to the high surface area and the excellent electron accepting and transporting properties of graphene, which served as an acceptor of the generated electrons to suppress charge recombination. These results provide a new insight for the design and development of hybrid photocatalysts.

Place, publisher, year, edition, pages
INT UNION CRYSTALLOGRAPHY , 2019. Vol. 75, p. 812-821
Keywords [en]
tin oxide; heterojunction; photocatalysis; visible light; graphene; crystal structure
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Identifiers
URN: urn:nbn:se:liu:diva-158809DOI: 10.1107/S2053229619006399ISI: 000470768100026PubMedID: 31166936OAI: oai:DiVA.org:liu-158809DiVA, id: diva2:1337702
Note

Funding Agencies|National Natural Science Foundation of China [21601120, 21501119]; Science and Technology Commission of Shanghai Municipality [17ZR1410500, 19ZR1418100]; Key Natural Science Foundation of Anhui Provincial Education Commission [KJ2016A510]; Anhui Provincial Science Foundation for Excellent Youth Talents; Educational Quality and Innovation Project of Anhui Province [2015jyxm398]

Available from: 2019-07-16 Created: 2019-07-16 Last updated: 2019-07-16

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