Advances in Photo(electro)catalytic Hydrogen Production

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalysis for Sustainable Energy".

Deadline for manuscript submissions: closed (15 April 2024) | Viewed by 1965

Special Issue Editors


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Guest Editor
College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
Interests: photo(electro)catalytic hydrogen production; photocatalytic degradation; thermal catalysis
College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
Interests: low dimensional nanomaterials; photo/electro catalysis; nitrogen reduction; carbon dioxide reduction
College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
Interests: electrocatalysis; photoelectrocatalysis

Special Issue Information

Dear Colleagues,

Hydrogen energy, as an efficient, clean and sustainable "carbon free" energy is of great significance to the sustainable development of human society. Among several hydrogen production technologies, photo(electric) hydrogen production has attracted much attention because its energy comes from abundant solar energy and electric energy converted by solar energy, potentially solving the energy crisis and avoiding environmental pollution caused by traditional fossil energy hydrogen production. Initially, the efficiency of the hydrogen production process is rather limited, which mainly results from the existing drawbacks of catalysts such as instability and low activity. Here, it is of great value to evaluate  the photo(electric) hydrogen production system, engineering electrodes with advanced materials, the parameters in water oxidation reactions occurring on the surface of anodes, and the basic functions of co-catalysts on the promotion of electrocatalyst, photoelectrocatalyst, and photocatalyst performance. We welcome colleagues in the field of photo(electro)catalysis to submit your original research articles and review articles.

Prof. Dr. Baojun Ma
Dr. Xiaoman Li
Dr. Wei Wang
Guest Editors

Manuscript Submission Information

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Keywords

  • photocatalysis
  • electrocatalysis
  • photoelectrocatalysis
  • water splitting
  • hydrogen production
  • advanced catalysis material
  • sustainable development

Published Papers (3 papers)

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Research

14 pages, 3430 KiB  
Article
Efficient Charge Transfer of p-n Heterojunction UiO-66-NH2/CuFe2O4 Composite for Photocatalytic Hydrogen Production
by Mariyappan Shanmugam, Nithish Agamendran and Karthikeyan Sekar
Catalysts 2024, 14(6), 341; https://doi.org/10.3390/catal14060341 - 24 May 2024
Viewed by 225
Abstract
Using a p-n heterojunction is one of the efficient methods to increase charge transfer in photocatalysis applications. So, herein, p-type UiO-66 (NH2) and n-type CuFe2O4 (CFO) are used to form an effective p-n heterojunction. Due to their poor [...] Read more.
Using a p-n heterojunction is one of the efficient methods to increase charge transfer in photocatalysis applications. So, herein, p-type UiO-66 (NH2) and n-type CuFe2O4 (CFO) are used to form an effective p-n heterojunction. Due to their poor charge separation in their pristine form, both UiO-66 (NH2) and CFO materials cannot produce hydrogen; however, the composite p-n heterojunction formed between these materials makes fast charge separation and so hydrogen is efficiently produced. The optimized catalyst UCFO 25% produces a maximum of 62.5 µmol/g/h hydrogen in an aqueous methanol solution. The formation of a p-n heterojunction is confirmed by Mott–Schottky analysis and optical properties, crystallinity and the local atomic environment of the material was analyzed by various analytical tools like UV-Vis spectroscopy, XRD, and XANES. Full article
(This article belongs to the Special Issue Advances in Photo(electro)catalytic Hydrogen Production)
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12 pages, 6324 KiB  
Article
Ultrathin-Shelled Zn-AgIn5S8/ZnS Quantum Dots with Partially Passivated Trap States for Efficient Hydrogen Production
by Yanhong Liu, Xianjin Wang, Guan Gong, Afaq Ullah Khan, Geru Li, Tong Ren, Qitao Chen, Lixia Li and Baodong Mao
Catalysts 2024, 14(5), 298; https://doi.org/10.3390/catal14050298 - 30 Apr 2024
Viewed by 503
Abstract
The manipulation of trap states plays a crucial role in the development of efficient photocatalysts. An ultrathin-shelled Zn-AgIn5S8/ZnS quantum dots (QDs) photocatalyst was synthesized via in situ growth using a low-temperature hydrothermal method. The optical properties of the samples [...] Read more.
The manipulation of trap states plays a crucial role in the development of efficient photocatalysts. An ultrathin-shelled Zn-AgIn5S8/ZnS quantum dots (QDs) photocatalyst was synthesized via in situ growth using a low-temperature hydrothermal method. The optical properties of the samples coated with ZnS shell were studied vis UV-vis absorption and fluorescence spectra. The ultrathin ZnS shell plays an important role in the Zn-AgIn5S8/ZnS core–shell heterostructure photocatalytic water splitting system, which could reduce surface defects, prolong the carrier lifetime and improve the photo-generated electron–hole pair separation effectively, resulting in the improved photocatalytic efficiency and enhanced stability of the catalyst. The results provide an effective guideline for shell thickness design in future constructions of the core–shell heterostructure photocatalyst. Full article
(This article belongs to the Special Issue Advances in Photo(electro)catalytic Hydrogen Production)
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11 pages, 3466 KiB  
Article
A Highly Efficient Composite Catalyst (Au/Ta3N5)/CdS for Photocatalytic Hydrogen Production
by Jinfeng Tian, Xing Wen, Wenfeng Hu, Li Luo, Wei Wang, Keying Lin, Haijuan Zhan and Baojun Ma
Catalysts 2023, 13(7), 1103; https://doi.org/10.3390/catal13071103 - 14 Jul 2023
Cited by 1 | Viewed by 875
Abstract
As non-noble metal co-catalysts, Nitrides have received extensive attention for their high efficiency and low cost in photocatalytic hydrogen production. In this study, we develop a novel composite co-catalyst of Au/Ta3N5 that significantly enhanced the photocatalytic hydrogen production activity of [...] Read more.
As non-noble metal co-catalysts, Nitrides have received extensive attention for their high efficiency and low cost in photocatalytic hydrogen production. In this study, we develop a novel composite co-catalyst of Au/Ta3N5 that significantly enhanced the photocatalytic hydrogen production activity of CdS. The activity of photocatalyst (Au/Ta3N5)/CdS is 7.3 times of bare CdS and 2.2 times of Ta3N5/CdS. The proper capacitance and enhanced activity of Ta3N5 demonstrates the capacitance catalysis effect of Ta3N5, which improves the charges separation and storing of the photoexcited electrons from CdS. Au acts as an active site for proton reduction to further improve the activity. Full article
(This article belongs to the Special Issue Advances in Photo(electro)catalytic Hydrogen Production)
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