Low-temperature hydrothermal synthesis and characterization of SrTiO3 photocatalysts for NOx degradation

Mariko Kobayashi, Yoshikazu Suzuki, Tomoyo Goto, Sung Hun Cho, Tohru Sekino, Yusuke Asakura, Shu Yin

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    SrTiO3 is an excellent photocatalyst due to its high photocorrosion resistance and thermal stability. In this study, we synthesized SrTiO3 nanoparticles with high specific surface areas by the hydrothermal method at reduced temperature. Titanium(IV) bis(ammonium lactato)dihydroxide (TALH) solution and strontium hydroxide octahydrate [Sr(OH)2·8H2O] were used as starting materials. SrTiO3 nanoparticles were directly synthesized by hydrothermal heating at 150°C for 72120 h. The synthesized nanoparticles had diameters of 2040 nm, and the SrTiO3 powder heated for 72 h exhibited the highest specific surface area of 33.1 m2/g. This sample also showed the highest degradation rate for NO gas.

    Original languageEnglish
    Pages (from-to)135-138
    Number of pages4
    JournalJournal of the Ceramic Society of Japan
    Volume126
    Issue number2
    DOIs
    Publication statusPublished - 2018 Feb

    Keywords

    • Hydrothermal synthesis
    • NOx
    • Nanocrystalline materials
    • Particles
    • Photocatalyst
    • SrTiO3

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

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