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Development and Application of Heterogeneous Solid-State Photocatalysis

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Catalytic Materials".

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 1373

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Guest Editor
School of Physics and Technology, Wuhan University, Wuhan 430072, China
Interests: carbon nanomaterials; graphene; carbon composite; energy storage; supercapacitor; Li-ion battery; industry applications
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Special Issue Information

Dear Colleagues,

Heterogeneous solid-state photocatalysis is a field that harnesses the power of solid materials to drive photochemical reactions through light absorption. It encompasses the development, characterization, and application of solid-state photocatalysts, with a focus on environmental remediation and sustainable energy production. Solid-state photocatalysts, such as semiconductors, metal oxides, and hybrid composites, possess desirable properties such as suitable bandgap energies and surface characteristics. These properties enable them to efficiently absorb light and generate charge carriers for catalytic reactions. Nanomaterials, with their unique properties and increased surface-area-to-volume ratios, have emerged as promising photocatalysts, further advancing the field.

In the realm of solid-state photocatalysis, researchers and engineers are dedicated to improving the efficiency, stability, and selectivity of photocatalysts. They employ various strategies, including doping, surface modification, and nanostructuring, to enhance crucial aspects such as light absorption, charge separation, and surface reactivity. By employing these strategies, the overall catalytic performance of solid-state photocatalysts is maximized. The aim is to continually push the boundaries and optimize these materials for their intended applications.

In this Special Issue, we invite contributions related to the synthesis and optimization of novel solid-state photocatalysts, exploring the understanding of photocatalytic mechanisms and investigating photocatalytic materials for emerging applications. These contributions aim to advance the field of heterogeneous solid-state photocatalysis, foster innovation, and drive the development of sustainable and efficient solutions for environmental and energy-related challenges.

Prof. Dr. Chunxu Pan
Guest Editor

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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • photocatalysts
  • nanomaterials
  • semiconductors
  • metal oxides
  • hybrid composites

Published Papers (1 paper)

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Research

15 pages, 16970 KiB  
Article
Highly Efficient SnIn4S8@ZnO Z-Scheme Heterojunction Photocatalyst for Methylene Blue Photodegradation
by Qiang Luo, Changlin Sun, Juan Zhao, Qizhou Cai and Shanshan Yao
Materials 2023, 16(19), 6380; https://doi.org/10.3390/ma16196380 - 24 Sep 2023
Cited by 1 | Viewed by 940
Abstract
Building heterojunctions is a promising strategy for the achievement of highly efficient photocatalysis. Herein, a novel SnIn4S8@ZnO Z-scheme heterostructure with a tight contact interface was successfully constructed using a convenient two-step hydrothermal approach. The phase composition, morphology, specific surface [...] Read more.
Building heterojunctions is a promising strategy for the achievement of highly efficient photocatalysis. Herein, a novel SnIn4S8@ZnO Z-scheme heterostructure with a tight contact interface was successfully constructed using a convenient two-step hydrothermal approach. The phase composition, morphology, specific surface area, as well as photophysical characteristics of SnIn4S8@ZnO were investigated through a series of characterization methods, respectively. Methylene blue (MB) was chosen as the target contaminant for photocatalytic degradation. In addition, the degradation process was fitted with pseudo-first-order kinetics. The as-prepared SnIn4S8@ZnO heterojunctions displayed excellent photocatalytic activities toward MB degradation. The optimized sample (ZS800), in which the molar ratio of ZnO to SnIn4S8 was 800, displayed the highest photodegradation efficiency toward MB (91%) after 20 min. Furthermore, the apparent rate constant of MB photodegradation using ZS800 (0.121 min−1) was 2.2 times that using ZnO (0.054 min−1). The improvement in photocatalytic activity could be ascribed to the efficient spatial separation of photoinduced charge carriers through a Z-scheme heterojunction with an intimate contact interface. The results in this paper bring a novel insight into constructing excellent ZnO-based photocatalytic systems for wastewater purification. Full article
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