Design of Ag3PO4 for highly enhanced photocatalyst using hydroxyapatite as a source of phosphate ion

Uyi Sulaeman, Suhendar Suhendar, Hartiwi Diastuti, Anung Riapanitra, Shu Yin

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    The effect of hydroxyapatite on structure, particle size, and band gap energy of silver orthophosphate (Ag3PO4) have been investigated. The hydroxyapatite as a source of phosphate ion was prepared using the coprecipitation of CaCl2 and KH2PO4. To produce the product of Ag3PO4, the as-synthesized hydroxyapatite was suspended in water and quickly added to a silver nitrate solution. The obtained photocatalysts were characterized using XRD, SEM, DRS, and XPS. The high crystallinity of single phase Ag3PO4 was easily produced using the hydroxyapatite. Photocatalytic activities of the product were evaluated using RhB decomposition under blue light irradiation. The hydroxyapatite as a source of phosphate ion dramatically decreases the particle size and increases the absorption in the visible region. This obtained photocatalyst significantly improves the photocatalytic activity. The mechanism of reaction works in the following order: holes > superoxide radical > hydroxyl radical.

    Original languageEnglish
    Pages (from-to)1-5
    Number of pages5
    JournalSolid State Sciences
    Volume86
    DOIs
    Publication statusPublished - 2018 Dec

    Keywords

    • Defect sites
    • Hydroxyapatite
    • Phosphate ion
    • Photocatalyst
    • Silver orthophosphate

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Science(all)
    • Condensed Matter Physics

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