Direct Z-Scheme Photocatalysts

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Nanostructured Catalysts".

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 3857

Special Issue Editors


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Guest Editor
Centre of Polymer Systems, Tomas Bata University in Zlin, tr. Tomase Bati 5678, 760 01 Zlin, Czech Republic
Interests: heterogeneous photocatalysis; visible-light photocatalysis; band-gap engineering; advanced oxidation processes; nanoparticle synthesis and characterization; electron microscopy

E-Mail Website
Guest Editor
Centre of Polymer Systems, Tomas Bata University in Zlin, tr. Tomase Bati 5678, 760 01 Zlin, Czech Republic
Interests: nanocomposite; nanoparticles; spectroscopy; electronic; semiconductor; conductivity; photocatalysis; nanotechnology; LED device; sensors
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Special Issue Information

Dear Colleagues,

This Special Issue on “Direct Z-Scheme photocatalysts” (DZSP) is devoted to the latest progress and developments in the field of heterostructured nanoparticles and thin films, particularly for the processes of visible light energy conversion to chemical bonds inspired by artificial photosynthesis.Submissions to this Special Issue are welcome in the form of original research papers or reviews in following topics:

  • Synthesis strategies for heterostructure photocatalysts;
  • Theoretical and experimental investigations of mechanisms of photoprocesses;
  • Characterization techniques suitable for studies in DZSP;
  • Extension of the photocatalytic activity to the visible light region;
  • Application of advanced oxidation processes (AOP);
  • Hydrogen production, fuel generation;
  • CO2 reduction, N2 photofixation. 

The focus of this Special Issue will be design and synthesis strategies of DZSPs which impart proper intimate contact of the heterostructure phases with matching band structures. Works on measurement techniques providing insight to the mechanisms of investigated photoprocesses are encouraged, too. A true Z-scheme mechanism shall be demonstrated and verified. Reports on applications of DZSPs for conversion and storage of energy into chemical bonds utilizing visible (solar) light will be highly appreciated.

The issue will be attractive to researchers working in the field of sustainable nanoscale engineering power-to-X conversions, photocatalysis, and artificial photosynthesis.  

Dr. Michal Machovský
Dr. Ivo Kuřitka
Guest Editors

Manuscript Submission Information

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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

  • Photocatalyst
  • Z-scheme
  • Visible-light
  • Heterojunction
  • Synthesis strategy
  • Nanoparticles
  • Thin films
  • Artificial photosynthesis
  • Advanced oxidation processes (AOP)
  • Power-to-X

Published Papers (1 paper)

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Research

27 pages, 8742 KiB  
Article
Solid-State Synthesis of Direct Z-Scheme Cu2O/WO3 Nanocomposites with Enhanced Visible-Light Photocatalytic Performance
by Hassan Ali, Ali Can Guler, Milan Masar, Pavel Urbanek, Michal Urbanek, David Skoda, Pavol Suly, Michal Machovsky, Dusan Galusek and Ivo Kuritka
Catalysts 2021, 11(2), 293; https://doi.org/10.3390/catal11020293 - 23 Feb 2021
Cited by 28 | Viewed by 3327
Abstract
In this paper, we report the preparation of visible-light active direct Z-scheme Cu2O/WO3 nanocomposite photocatalyst by a solid-state reaction avoiding the otherwise inevitable formation of CuWO4 phase in wet syntheses. Structure, morphology, and thermal and optical properties of prepared [...] Read more.
In this paper, we report the preparation of visible-light active direct Z-scheme Cu2O/WO3 nanocomposite photocatalyst by a solid-state reaction avoiding the otherwise inevitable formation of CuWO4 phase in wet syntheses. Structure, morphology, and thermal and optical properties of prepared WO3 nanoplatelets decorated by Cu2O were investigated by XRD, Raman spectroscopy, SEM/TEM, combined thermogravimetric (TG)/differential scanning calorimetry (DSC) analysis, and UV–VIS spectroscopy. The photocatalytic performance of the prepared samples under UV and visible light was studied through monitoring discoloration of methylene blue under illumination by selected wavelengths, allowing for the distinguishing between the contributions of the two semiconductive components. Experimental results showed that the decoration of WO3 nanoplates by Cu2O nanoparticles led to an improvement in photocatalytic performance, regardless of used LED (Light-Emitting Diode) wavelength, even at low concentrations. By using scavengers selectively blocking reactive species involved in the discoloration reaction, we determined that the Cu2O/WO3 nanocomposite exhibited the characteristics of direct Z-scheme-type photocatalyst. Full article
(This article belongs to the Special Issue Direct Z-Scheme Photocatalysts)
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