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Catalysts
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State-of-the-Art Photocatalytical Technology in Asia
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State-of-the-Art Photocatalytical Technology in Asia

A special issue of Catalysts (ISSN 2073-4344).

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 12433

Special Issue Editors

Prof. Dr. Shinya Higashimoto

E-Mail Website
Guest Editor
Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
Interests: photocatalysts; photoelectrochemistry
Prof. Dr. Satoshi Kaneco

E-Mail Website
Guest Editor
Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu 514-8507, Japan
Interests: environmental chemistry; electrochemistry; analytical chemistry

Special Issue Information

Dear Colleagues,

Photocatalysts can clearly demonstrate artificial photosynthesis for water splitting and conversion of carbon dioxide into useful fuel, as well as complete decomposition of volatile organic compounds (VOCs) and bacteria into mineralization. So far, many researchers have endeavored to design and develop the photofunctional materials which operate under fluorescent light or solar light, and some products are on the market.
This Special Issue is going to be focused on “State-of-the-Art Photocatalytical Technology in Asia”. Fundamental exploration of the syntheses, characterizations, and applications in technological- and industrial-scale development of photocatalysts are of prime importance to this Special Issue. We welcome both review and original research articles on all aspects of heterogeneous and homogeneous photocatalysis. Topics include but are not limited to the following:

  • Artificial photosynthesis for water splitting and reduction of carbon dioxide;
  • Water and air treatment for decomposition of organic compounds and anti-bacteria;
  • Titanium dioxide transparent film photocatalyst (self-cleaning, anti-fogging effects) and their related photofunctional materials;
  • Visible light-responsible photocatalyst and new materials;
  • Photoassisted fine organic synthesis.

Prof. Dr. Shinya Higashimoto
Prof. Dr. Satoshi Kaneco
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Honda–Fujishima effect
  • TiO2 photocatalyst
  • Non-TiO2 photocatalyst
  • Visible light-sensitive photocatalyst
  • Band gap engineering
  • Artificial photosynthesis for H2 production and CO2 utilization
  • Photo-assisted fine organic synthesis
  • Photo–Fenton reactions
  • Air/water purification
  • Large scale and commercial applications

Published Papers (3 papers)

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Research

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12 pages, 1703 KiB  
Article
Mechanistic Insights into Visible Light-Induced Direct Hydroxylation of Benzene to Phenol with Air and Water over Pt-Modified WO3 Photocatalyst
by Yuya Kurikawa, Masahiro Togo, Michihisa Murata, Yasuaki Matsuda, Yoshihisa Sakata, Hisayoshi Kobayashi and Shinya Higashimoto
Catalysts 2020, 10(5), 557; https://doi.org/10.3390/catal10050557 - 18 May 2020
Cited by 10 | Viewed by 3609
Abstract
Activation of C(sp2)-H in aromatic molecules such as benzene is one of the challenging reactions. The tungsten trioxide supported Pt nanoparticles (Pt-WO3) exhibited hydroxylation of benzene in the presence of air and H2O under visible-light (420 < λ < [...] Read more.
Activation of C(sp2)-H in aromatic molecules such as benzene is one of the challenging reactions. The tungsten trioxide supported Pt nanoparticles (Pt-WO3) exhibited hydroxylation of benzene in the presence of air and H2O under visible-light (420 < λ < 540 nm) irradiation. The photocatalytic activities (yields and selectivity of phenol) were studied under several experimental conditions. Furthermore, investigations of mechanistic insight into hydroxylation of benzene have been carried out by analyses with apparent quantum yields (AQY), an H218O isotope-labeling experiment, kinetic isotope effects (KIE), electrochemical measurements and density functional theory (DFT) calculations. It was proposed that dissociation of the O–H bond in H2O is the rate-determining step. Furthermore, the substitution of the OH derived from H2O with H abstracted from benzene by photo-formed H2O2 indicated a mechanism involving a push-pull process for the hydroxylation of benzene into phenol. Full article
(This article belongs to the Special Issue State-of-the-Art Photocatalytical Technology in Asia)
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10 pages, 3868 KiB  
Article
Improvement of Photocatalytic H2-Generation under Visible Light Irradiation by Controlling the Band Gap of ZnIn2S4 with Cu and In
by Ikki Tateishi, Mai Furukawa, Hideyuki Katsumata and Satoshi Kaneco
Catalysts 2019, 9(8), 681; https://doi.org/10.3390/catal9080681 - 10 Aug 2019
Cited by 11 | Viewed by 3402
Abstract
The band gap controlled photocatalyst (Zn0.74Cu0.13In2S3.805) was prepared via a simple one-step solvothermal method. The effects of doping of Cu+ and excess In on the photocatalytic activity of ZnIn2S4 photocatalyst were [...] Read more.
The band gap controlled photocatalyst (Zn0.74Cu0.13In2S3.805) was prepared via a simple one-step solvothermal method. The effects of doping of Cu+ and excess In on the photocatalytic activity of ZnIn2S4 photocatalyst were investigated. In addition, optical properties, surface morphology and crystal structure were evaluated. The maximum H2 evolution rate (2370 µmol h−1 g−1) was achieved with Zn0.74Cu0.13In2S3.805, which was about five times higher than that of untreated ZnIn2S4 under visible light (λ ≥ 420 nm). The band gap of Zn0.74Cu0.13In2S3.805 decreased to 1.98 eV by raising the maximum position of the valence band, compared to ZnIn2S4. Furthermore, the recombination of electron hole pairs was effectively reduced. This research contributes to the development of highly active photocatalysts under visible light. Full article
(This article belongs to the Special Issue State-of-the-Art Photocatalytical Technology in Asia)
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Review

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18 pages, 5988 KiB  
Review
Recent Advances in Selective Photo-Epoxidation of Propylene: A Review
by Van-Huy Nguyen, Ba-Son Nguyen, Hieu-Thao Vo, Chinh Chien Nguyen, Sa-Rang Bae, Soo Young Kim and Quyet Van Le
Catalysts 2020, 10(1), 87; https://doi.org/10.3390/catal10010087 - 7 Jan 2020
Cited by 11 | Viewed by 4894
Abstract
The epoxidation of propylene to produce propylene oxide (PO) has a vital role in the industrial production of several commercial compounds and the synthesis of numerous intermediates, fine chemicals, and pharmaceuticals. However, the current PO production processes pose significant problems regarding the environment [...] Read more.
The epoxidation of propylene to produce propylene oxide (PO) has a vital role in the industrial production of several commercial compounds and the synthesis of numerous intermediates, fine chemicals, and pharmaceuticals. However, the current PO production processes pose significant problems regarding the environment and economy. The direct photo-epoxidation of propylene using molecular oxygen (an ideal oxidant with active oxygen of 100 wt %) under light irradiation is a promising technology to produce PO. This process offers numerous advantages, including the use of simple technologies, low-cost methods, and environmental friendliness. Many efforts have focused on the design of new photocatalyst systems, optimizing the conditions for a photocatalytic reaction, and elucidating the mechanisms of photo-epoxidation. This review is expected to serve as a comprehensive background, providing researchers with insight into the recent developments regarding the direct photo-epoxidation of propylene. Full article
(This article belongs to the Special Issue State-of-the-Art Photocatalytical Technology in Asia)
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