Green Photocatalysis for a Sustainable Future

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Catalysis Enhanced Processes".

Deadline for manuscript submissions: 14 May 2026 | Viewed by 1098

Special Issue Editors


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Guest Editor
School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
Interests: augmented designs; analytics and reality-enabled manufacturing of heterogeneous photocatalysts; solar energy conversion; photocatalytic CO2 reduction; carbon-based polymer materials

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Guest Editor
School of Land Resource and Environmental, Jiangxi Agricultural University, Nanchang 330045, China
Interests: preparation and application of photocatalysts

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Guest Editor
Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
Interests: the design and construction of highly efficient photoelectronic functional nanomaterials

Special Issue Information

Dear Colleagues,

With the global emphasis on sustainable development and clean energy, photocatalysis has emerged as a transformative technology, drawing considerable interest in regard to its in-depth exploration and design. The attractiveness of photocatalysis stems from its environmentally friendly and sustainable solar-driven technology, as well as its diverse applications, including CO2 reduction, H2 generation, N2 fixation, contaminant degradation, biomass-related conversion, etc.

The photocatalytic performance is undoubtedly constrained by the intrinsic properties of photocatalysts. Designing and preparing efficient and stable photocatalysts are essential for successful photocatalytic reactions, though these tasks remain challenging. Additionally, photocatalytic reactions typically occur across multiple temporal and spatial scales, complicating our understanding of the mechanisms behind photocatalytically driven small molecule reactions, especially regarding electron atom/molecule coupling. Therefore, there is an urgent need to develop efficient photocatalysts, advance photocatalytic theory, and achieve technological breakthroughs. We encourage interdisciplinary research that integrates insights from chemistry, materials science, and engineering to tackle major challenges in this field. Topics of interest include, but are not limited to, the following:

  1. Augmented designs of high-efficient photocatalysts;
  2. Photocatalytic application including CO2 reduction, H2 generation, contaminant degradation, biomass-related conversion, N2 fixation, etc.;
  3. Homogeneous photocatalysis or heterogeneous photocatalysis;
  4. Photocatalyst activity, stability, and product selectivity;
  5. Case studies on potential industrial applications, e.g., stability assessment under practical operating conditions.

We welcome contributions containing the above topics and related research fields.

Dr. Lei Cheng
Dr. Yang Li
Dr. Jian Yang
Guest Editors

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Keywords

  • photocatalysts
  • homogeneous photocatalysis
  • heterogeneous photocatalysis
  • solar energy generation
  • value-added chemical generation
  • biomass-related conversion
  • artificial photosynthesis

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Published Papers (2 papers)

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Research

17 pages, 8243 KB  
Article
Synthesis of CuO/ZnWO4 Heterojunction Structure for H2S Gas Sensor with Ultra-High Response Value at Room Temperature
by Yuhang Zhai, Lianxu Lv and Jiajie Fan
Processes 2025, 13(9), 2727; https://doi.org/10.3390/pr13092727 - 26 Aug 2025
Viewed by 358
Abstract
H2S detection is critical for personal and industrial safety. Generally, metal oxide-based H2S sensors exhibit no response at room temperature (RT). In this study, CuO/ZnWO4 (C-ZWO) nanocomposites were prepared via a two-step hydrothermal process and applied to RT [...] Read more.
H2S detection is critical for personal and industrial safety. Generally, metal oxide-based H2S sensors exhibit no response at room temperature (RT). In this study, CuO/ZnWO4 (C-ZWO) nanocomposites were prepared via a two-step hydrothermal process and applied to RT H2S sensing. The results show that the C-ZWO sensors exhibit an elevated response value at RT and balanced gas-sensing properties at 100 °C. Significantly, the response value of a 10% C-ZWO sensor to 25 ppm of H2S at RT is 651.6 with a response time of 78 s, which is 310.3 times that of the ZnWO4 sensor (2.1). The systemic characterization results suggest that the enhanced RT H2S-sensing properties are ascribed to the synergistic effects of the growth-specific surface area and oxygen vacancy occupancy, the enhanced oxygen reduction ability, and the formation of the p–n heterojunction structure between CuO and ZnWO4. The C-ZWO nanocomposites possess added active sites for H2S adsorption and dissociation, with the p–n heterojunction giving rise to higher electrical resistance, and thus, the follow-up produces a high response value even at RT. Full article
(This article belongs to the Special Issue Green Photocatalysis for a Sustainable Future)
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7 pages, 784 KB  
Communication
Mechanoluminescent-Boosted NiS@g-C3N4/Sr2MgSi2O7:Eu,Dy Heterostructure: An All-Weather Photocatalyst for Water Purification
by Yuchen Huang, Jiamin Wu, Honglei Li, Dehao Liu, Qingzhe Zhang and Kai Li
Processes 2025, 13(8), 2416; https://doi.org/10.3390/pr13082416 - 30 Jul 2025
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Abstract
The vast majority of photocatalysts find it difficult to consistently and stably exhibit high performance due to the variability of sunlight intensity within a day, as well as the high energy consumption of artificial light sources. In this study, mechanoluminescent Sr2MgSi [...] Read more.
The vast majority of photocatalysts find it difficult to consistently and stably exhibit high performance due to the variability of sunlight intensity within a day, as well as the high energy consumption of artificial light sources. In this study, mechanoluminescent Sr2MgSi2O7:Eu,Dy phosphors is combined with NiS@g-C3N4 composite to construct a ternary heterogeneous photocatalytic system, denoted as NCS. In addition to the enhanced separation efficiency of photogenerated charge carriers by the formation of a heterojunction, the introduction of Sr2MgSi2O7:Eu,Dy provides an ultra-driving force for the photocatalytic reactions owing to its mechanoluminescence-induced excitation. Results show that the degradation rate of RhB increased significantly in comparison with pristine g-C3N4 and NiS@g-C3N4, indicating the obvious advantages of the ternary system for charge separation and migration. Moreover, the additional photocatalytic activity of NCS under ultrasound stimulation makes it a promising all-weather photocatalyst even in dark environments. This novel strategy opens up new horizons for the synergistic combination of light-driven and ultrasound-driven heterogeneous photocatalytic systems, and it also has important reference significance for the design and application of high-performance photocatalysts. Full article
(This article belongs to the Special Issue Green Photocatalysis for a Sustainable Future)
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