N-TiO2/g-C3N4/Up-conversion phosphor composites for the full-spectrum light-responsive deNOx photocatalysis

Zhihuan Zhao, Xiao Zhang, Jimin Fan, Dongfeng Xue, Bing Zhang, Shu Yin

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    5 Citations (Scopus)

    Abstract

    The ternary composites consisted of nitrogen-doped titanium dioxide, carbon nitride and up-conversion phosphors (UP) were successfully prepared by a solvothermal method. The heterojunction could be formed when N-TiO2 and g-C3N4 were combined together. The composite of N-TiO2/g-C3N4@UP had excellent ultraviolet, visible and infrared light absorption, indicating the possibility for the utilization of full spectrum of solar light. When N-TiO2 was coupled with g-C3N4 and up-conversion phosphors to form a composite, the visible light and NIR light absorption of the samples increased. The ternary composite N-TiO2/g-C3N4@G-UP presented reasonable deNOx performance of about 8.0% under the irradiation of IR light of 980 nm. The intensification of the photocatalysis might be realized by utilizing up-conversion phosphors, which could convert low-energy NIR light into high-energy photons (visible light) and increase the efficient irradiation on the surface of photocatalyst.

    Original languageEnglish
    Pages (from-to)7266-7278
    Number of pages13
    JournalJournal of Materials Science
    Volume53
    Issue number10
    DOIs
    Publication statusPublished - 2018 May 1

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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