Special Issue "The Synthesis, Characterization, and Application of Novel Photocatalytic Materials"
A special issue of ChemEngineering (ISSN 2305-7084).
Deadline for manuscript submissions: 15 January 2024 | Viewed by 505
Interests: photocatalysis; water pollutants; AOPs
Interests: photocatalysis; artificial photosynthesis; solar fuels; the synthesis of advanced nanomaterials
Special Issues, Collections and Topics in MDPI journals
A photocatalyst is a semiconductor that, when irradiated, adsorbs energy equal to or greater than its bandgap; therefore, a valence electron is excited into the conduction band, leaving a valence band hole behind. These photogenerated electrons and holes reach the surface of the semiconductor, where they reduce the species or act as oxidizing agents, respectively. Among all photocatalysts, oxide-based materials have been found to be more active, environmentally compatible and stable, with TiO2 being studied thoroughly. Nevertheless, innovative photocatalytic materials synthesized through green approaches are being reported constantly. Challenging issues in the design of efficient photocatalytic materials include eliminating charge recombination, expanding light absorption over the ultraviolet region, and overcoming deactivation due to the adsorption of photodegradation reaction products on their surface. These novel photocatalytic materials can be applied to environmental remediation, such as water and wastewater treatment and reuse, or air and industrial gas stream treatment. They could also be utilized for potential applications in food preservation, water splitting, self-cleaning surfaces, or testing for antimicrobial properties.
Authors are welcome to cover any of the issues mentioned above according to their expertise.
Dr. Chrysoula Athanasekou
Dr. Nikolaos G. Moustakas
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. ChemEngineering 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 1500 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.
- visible/solar light harvesting
- advanced oxidation/reduction technologies
- water and wastewater treatment/reuse
- self-cleaning surfaces
- air treatment
- food preservation
- water splitting
- antimicrobial properties
- industrial gas stream treatment
- green synthesis
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Exploring metal modified TiO2-based Photocatalysts for Efficient and Sustainable Hydrogen Production
Authors: Apostolos Salepis; Emmanouil Orfanos; Athanassios G. Coutsolelos; A. Ch. Mitropoulos; Kalliopi Ladomenou
Affiliation: International Hellenic University, Department of Chemistry, Laboratory of Inorganic Chemistry, Kavala Campus, Agios Loucas, 65404, Greece
Abstract: The photocatalytic hydrogen production is one of the most promising approaches for sustainable energy production. In the literature there are a plethora of systems that have been carefully designed in order to use solar energy and convert it to chemical energy. The main drawback of the reported photocatalysts is their stability. Therefore, there is still the challenge to produce a cost-effective photocatalyst that could be used in real applications. Suitable photocatalysts for H2 production must have the appropriate band-edge energy positions. In addition, an important role plays the sacrificial agent and the use of cocatalysts. One photocatalyst that meets the above requirements and has been involved in a large number of studies is TiO2. In this review paper the principles of TiO2 and metal doped TiO2 photocatalysts were demonstrated. Platinum (Pt), gold (Au), copper (Cu), nickel (Ni), cobalt (Co), ruthenium (Ru), iron (Fe), silver (Ag) and bimetallic (Ni-Fe, Ni-Cu) are the TiO2 dopants that have been described. In all cases, H2 production efficiencies are greater compared to undoped TiO2, since the metals are able to provide more reaction sites and can improve the charge separation. In addition, the use of bimetallic dopants can further improve the H2 evolution reaction.