New Monocrystal Catalysts and Complex Photocatalysts: Synthesis and Characterization

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

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 842

Special Issue Editor


E-Mail Website
Guest Editor
1. School of Physics, Changchun Normal University, Changchun 130032, China
2. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China
Interests: optimal preparation methods for photocatalysts; monocrystal photocatalysts; complex photocatalysts; heterogenous junction catalyst; property characterization of nanocatalyst; photocatalytic degradation of organic pollutants; degradative pathway of organic pollutants; research on degradation mechanism
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The purpose of this topic is for the preparation of new visible light-responsive photocatalysts which will be detected by all kinds of advanced experimental instruments, such as transmission electron microscope. Different preparation methods, such as the solvothermal method, will be utilized to prepare heterojunction photocatalysts, precious metal-doped composite photocatalysts and monocrystal photocatalysts. The above new photocatalysts will be used for the degradation of organic pollutants under visible light irradiation or under ultraviolet light illumination. The removal rate of poisonous organic pollutants and the removal rates of the total organic carbon will be analyzed and arranged. The intermediate product during photocatalytic degradation of poisonous organic pollutants will be investigated. The degradation pathways of poisonous organic pollutants such as pentachlorophenol will be provided. The degradation mechanism using hydroxyl radical, superoxide anion and photoinduced holes will be revealed. Hydrogen production via water splitting will be realized by using new monocrystal photocatalysts or heterojunction photocatalysts under visible light irradiation or under ultraviolet light illumination.

Prof. Dr. Jingfei Luan
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. 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

  • optimal preparation methods for photocatalysts
  • monocrystal photocatalysts
  • complex photocatalysts
  • heterogenous junction catalyst
  • property characterization of nanocatalyst
  • photocatalytic degradation of organic pollutants
  • hydrogen production by water splitting
  • degradative pathway of organic pollutants
  • visible light irradiation
  • research on degradation mechanism

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

30 pages, 10032 KiB  
Article
Synthesis, Characterization of the Novel Heterojunction Photocatalyst Sm2NdSbO7/BiDyO3 for Efficient Photodegradation of Methyl Parathion
by Jingfei Luan, Jun Li, Ye Yao, Bowen Niu, Liang Hao, Yichun Wang and Zhe Li
Catalysts 2024, 14(6), 346; https://doi.org/10.3390/catal14060346 - 27 May 2024
Viewed by 628
Abstract
A new catalyst, Sm2NdSbO7, was synthesized for the first time by solid-phase sintering. The study utilized X-ray diffraction, transmission electron microscope energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy to examine the structural characteristics of monocrystal BiDyO3, [...] Read more.
A new catalyst, Sm2NdSbO7, was synthesized for the first time by solid-phase sintering. The study utilized X-ray diffraction, transmission electron microscope energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy to examine the structural characteristics of monocrystal BiDyO3, monocrystal Sm2NdSbO7 and Sm2NdSbO7/BiDyO3 heterojunction photocatalysts (SBHP) prepared by solid-phase sintering. The Sm2NdSbO7 photocatalyst owned a pyrochlorite structure, belonged to the face-centered cubic crystal system, possessed a space group of Fd3m and a bandgap width of 2.750 eV. After 145 min of visible light irradiation (145-VLIRD), the removal rate (RMR) of methyl parathion (MP) or total organic carbon of SBHP was 100% or 97.58%, respectively. After 145-VLIRD, the photocatalytic degradation rates of SBHP to MP were 1.13 times, 1.20 times, and 2.43 times higher than those of the Sm2NdSbO7 photocatalyst, the BiDyO3 photocatalyst, and the nitrogen-doped TiO2 catalyst, respectively. The experimental results showed that SBHP had good photocatalytic activity. After four cycles of cyclic degradation experiments with SBHP, the elimination rates of MP were 98.76%, 97.44%, 96.32%, and 95.72%, respectively. The results showed that SBHP had good stability. Finally, the possible degradation pathways and degradation mechanisms of MP were speculated. In this study, we successfully developed a high-efficiency heterojunction catalyst which responded to visible light and possessed significant photocatalytic activity. The catalyst could be used in photocatalytic reaction system for eliminating the harmful organic pollutants from wastewater. Full article
Show Figures

Figure 1

Back to TopTop