TY - JOUR
T1 - Synthesis and adsorption-photodecomposition properties of mesoporous SiO2TiO2/WO3 composite
AU - Hirata, Shingo
AU - Inoue, Aya
AU - Inada, Miki
AU - Hojo, Junichi
N1 - Funding Information:
Acknowledgments This work was partially supported by Grant-in-Aid for Scientific Research on Innovative Areas “Mixed Anion” (No. JP16H06440). DLS measurements using ELSZ-0S and TEM observation using H-7650 were performed at the Center of Advanced Instrumental Analysis, Kyushu University.
Publisher Copyright:
© 2021 The Ceramic Society of Japan. All rights reserved.
PY - 2021/7/1
Y1 - 2021/7/1
N2 - Gaseous volatile organic pollutants may be removed from the environment through photocatalysts combined with adsorbents. Herein, a mesoporous SiO2TiO2/WO3 composite was fabricated by the solgel method in order to remove acetaldehyde in the gas phase. TiO2 and WO3 were well-dispersed in the SiO2 matrix. The adsorption-photodecomposition properties of mesoporous SiO2TiO2/WO3 were evaluated through a three-step kinetic analysis, including direct-decomposition, adsorption, and adsorption-decomposition. The composition of WO3 in the SiO2TiO2 increased the acidity and improved the affinity between the photocatalyst and acetaldehyde. This effectively enhanced the initial removal rate of acetaldehyde. The atomization of WO3 further improved the affinity between the photocatalyst and acetaldehyde and enhancing the photodecomposition rate constant.
AB - Gaseous volatile organic pollutants may be removed from the environment through photocatalysts combined with adsorbents. Herein, a mesoporous SiO2TiO2/WO3 composite was fabricated by the solgel method in order to remove acetaldehyde in the gas phase. TiO2 and WO3 were well-dispersed in the SiO2 matrix. The adsorption-photodecomposition properties of mesoporous SiO2TiO2/WO3 were evaluated through a three-step kinetic analysis, including direct-decomposition, adsorption, and adsorption-decomposition. The composition of WO3 in the SiO2TiO2 increased the acidity and improved the affinity between the photocatalyst and acetaldehyde. This effectively enhanced the initial removal rate of acetaldehyde. The atomization of WO3 further improved the affinity between the photocatalyst and acetaldehyde and enhancing the photodecomposition rate constant.
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U2 - 10.2109/jcersj2.21028
DO - 10.2109/jcersj2.21028
M3 - Article
AN - SCOPUS:85109815944
SN - 1882-0743
VL - 129
SP - 464
EP - 469
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
IS - 7
ER -