Issue 10, 2018, Issue in Progress
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RSC Advances

Efficient photocatalytic degradation of gaseous acetaldehyde over ground Rh–Sb co-doped SrTiO3 under visible light irradiation

Yuichi Yamaguchi,ab   Sho Usuki,ab   Kenji Yamatoya,b   Norihiro Suzuki,a   Ken-ichi Katsumata,a   Chiaki Terashima,a   Akira Fujishima,a   Akihiko Kudoac  and  Kazuya Nakata ORCID logo *ab  

* Corresponding authors

a Research Institute for Science and Technology, Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-0022, Japan
E-mail: nakata@rs.tus.ac.jp

b Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-0022, Japan

c Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan

Abstract

A visible-light-responsive Rh–Sb co-doped SrTiO3 photocatalyst (STO:Rh,Sb) via a solid-state reaction was successfully developed, following pulverization by using ball-milling. The prepared STO:Rh,Sb exhibited a large surface area and showed efficient photocatalytic degradation of acetaldehyde. The photocatalytic activity of STO:Rh,Sb ground for 60 min exceeded that of STO:Rh ground for 60 min (photocatalyst doped without antimony), indicating that doped antimony plays an important role in suppressing the Rh4+, which works as a recombination center, in STO:Rh,Sb. Furthermore, the photocatalytic performance of STO:Rh,Sb ground for 60 min was sustained over 3 cycles, confirming the chemical stability of the photocatalyst. Therefore, ground STO:Rh,Sb has the potential to be applied to environmental remediation under visible light irradiation.

Graphical abstract: Efficient photocatalytic degradation of gaseous acetaldehyde over ground Rh–Sb co-doped SrTiO3 under visible light irradiation

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Article information

DOI
https://doi.org/10.1039/C7RA11337D
Article type
Paper
Submitted
14 Oct 2017
Accepted
24 Jan 2018
First published
31 Jan 2018
This article is Open Access
Creative Commons BY license

RSC Adv., 2018,8, 5331-5337

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Efficient photocatalytic degradation of gaseous acetaldehyde over ground Rh–Sb co-doped SrTiO3 under visible light irradiation

Y. Yamaguchi, S. Usuki, K. Yamatoya, N. Suzuki, K. Katsumata, C. Terashima, A. Fujishima, A. Kudo and K. Nakata, RSC Adv., 2018, 8, 5331 DOI: 10.1039/C7RA11337D

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