Use of Mn doping to suppress defect sites in Ag 3 PO 4: Applications in photocatalysis

Mohammad Afif, Uyi Sulaeman, Anung Riapanitra, Roy Andreas, Shu Yin

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    The highly active Mn-doped Ag 3 PO 4 photocatalyst was successfully synthesized under coprecipitation method using AgNO 3 , Na 2 HPO 4 ·12H 2 O, and MnSO 4 ·H 2 O, followed by annealing. The products were characterized using the SEM, XRD, DRS, XPS, and BET. The results showed that the Mn doping decreased the broad absorption in the visible region and increased the atomic ratio of O/Ag. The hydroxyl defects and oxygen vacancies can be suppressed by Mn doping and the photocatalytic activity under visible light irradiation could be improved. This excellent photocatalytic activity was caused by decreasing the recombination of electron and holes due to suppressing the defect sites in the surface of Ag 3 PO 4 .

    Original languageEnglish
    Pages (from-to)352-357
    Number of pages6
    JournalApplied Surface Science
    Volume466
    DOIs
    Publication statusPublished - 2019 Feb 1

    Keywords

    • Ag PO
    • Defect sites
    • Hydroxyl defect
    • Mn doping
    • Oxygen vacancy
    • Photocatalysis

    ASJC Scopus subject areas

    • Chemistry(all)
    • Condensed Matter Physics
    • Physics and Astronomy(all)
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films

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