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Nanomaterials
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Photocatalytic Engineering Nanomaterials in the Environment and Energy Fields
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Photocatalytic Engineering Nanomaterials in the Environment and Energy Fields

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 2452

Special Issue Editor

Prof. Dr. Guangfu Liao

E-Mail Website
Guest Editor
College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Interests: photocatalysis

Special Issue Information

Dear Colleagues,

The field of photocatalytic engineering nanomaterials has expanded rapidly in the last four decades, having undergone various evolutionary phases related to energy and the environment. Notably, the interdisciplinary nature of the field has expanded significantly, incorporating semiconductor physics, surface sciences, photo and physical chemistry, materials science, and chemical engineering.

The present Special Issue of Nanomaterials aims to present the current state of the art in the application of photocatalytic engineering nanomaterials in the environmental and energy domains. We encourage leading groups in the field to contribute to this Special Issue, with the aim of providing a balanced perspective on the current state of the art in this discipline.

Prof. Dr. Guangfu Liao
Guest Editor

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. Nanomaterials 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 2900 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

  • photocatalysis engineering
  • nanomaterials energy and environment science
  • photo and physical chemistry
  • semiconductor physics

Published Papers (2 papers)

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Research

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14 pages, 3898 KiB  
Article
Construction of Type-II Heterojunctions in Crystalline Carbon Nitride for Efficient Photocatalytic H2 Evolution
by Jingyu Zhang, Zhongliang Li, Jialong Li, Yalin He, Haojie Tong, Shuang Li, Zhanli Chai and Kun Lan
Nanomaterials 2023, 13(16), 2300; https://doi.org/10.3390/nano13162300 - 10 Aug 2023
Cited by 2 | Viewed by 856
Abstract
As an encouraging photocatalyst, crystalline carbon nitride (CCN) exhibits unsatisfactory photocatalytic activity and stability due to its rapid recombination of photo-generative carriers. Herein, high-crystalline g-C3N4 was prepared, including CCN obtained in KCl (K-CCN), LiCl-KCl mixture (Li/K-CCN), and LiCl-NaCl-KCl mixture (Li/Na/K-CCN), [...] Read more.
As an encouraging photocatalyst, crystalline carbon nitride (CCN) exhibits unsatisfactory photocatalytic activity and stability due to its rapid recombination of photo-generative carriers. Herein, high-crystalline g-C3N4 was prepared, including CCN obtained in KCl (K-CCN), LiCl-KCl mixture (Li/K-CCN), and LiCl-NaCl-KCl mixture (Li/Na/K-CCN), via the molten salt strategy using pre-prepared bulk carbon nitride (BCN) as a precursor. The obtained BCN sample was formed by heptazine-based units, which convert into triazine-based units for K-CCN. Heptazine and triazine are two isotypes that co-exist in the Li/K-CCN and Li/Na/K-CCN samples. Compared with BCN and other CCN samples, the as-prepared Li/Na/K-CCN sample exhibited the optimal photocatalytic hydrogen evolution rates (3.38 mmol·g−1·h−1 under simulated sunlight and 2.25 mmol·g−1·h−1 under visible light) and the highest apparent quantum yield (10.97%). The improved photocatalytic performance of the Li/Na/K-CCN sample is mainly attributed to the construction of type-II heterojunction and the institution of the built-in electric field between triazine-based CCN and heptazine-based BCN. This work provides a new strategy for the structural optimization and heterostructure construction of crystalline carbon nitride photocatalysts. Full article
(This article belongs to the Special Issue Photocatalytic Engineering Nanomaterials in the Environment and Energy Fields)
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Review

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19 pages, 3628 KiB  
Review
Recent Advances in LDH/g-C3N4 Heterojunction Photocatalysts for Organic Pollutant Removal
by Cheng Du, Jialin Xu, Guixiang Ding, Dayong He, Hao Zhang, Weibao Qiu, Chunxue Li and Guangfu Liao
Nanomaterials 2023, 13(23), 3066; https://doi.org/10.3390/nano13233066 - 1 Dec 2023
Cited by 4 | Viewed by 1376
Abstract
Environmental pollution has been decreased by using photocatalytic technology in conjunction with solar energy. An efficient method to obtain highly efficient photocatalysts is to build heterojunction photocatalysts by combining graphitic carbon nitride (g-C3N4) with layered double hydroxides (LDHs). In [...] Read more.
Environmental pollution has been decreased by using photocatalytic technology in conjunction with solar energy. An efficient method to obtain highly efficient photocatalysts is to build heterojunction photocatalysts by combining graphitic carbon nitride (g-C3N4) with layered double hydroxides (LDHs). In this review, recent developments in LDH/g-C3N4 heterojunctions and their applications for organic pollutant removal are systematically exhibited. The advantages of LDH/g-C3N4 heterojunction are first summarized to provide some overall understanding of them. Then, a variety of approaches to successfully assembling LDH and g-C3N4 are simply illustrated. Last but not least, certain unmet research needs for the LDH/g-C3N4 heterojunction are suggested. This review can provide some new insights for the development of high-performance LDH/g-C3N4 heterojunction photocatalysts. It is indisputable that the LDH/g-C3N4 heterojunctions can serve as high-performance photocatalysts to make new progress in organic pollutant removal. Full article
(This article belongs to the Special Issue Photocatalytic Engineering Nanomaterials in the Environment and Energy Fields)
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