Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
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Low-temperature hydrothermal synthesis and characterization of SrTiO3 photocatalysts for NOx degradation
Mariko KOBAYASHIYoshikazu SUZUKITomoyo GOTOSung Hun CHOTohru SEKINOYusuke ASAKURAShu YIN
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2018 Volume 126 Issue 2 Pages 135-138

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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 72–120 h. The synthesized nanoparticles had diameters of 20–40 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.

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© 2018 The Ceramic Society of Japan
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