Advances in Photocatalytic Degradation

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

Deadline for manuscript submissions: 28 February 2025 | Viewed by 593

Special Issue Editors


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Guest Editor
Investigadores por México, CONAHCyT, Departamento de Química, Área de Catálisis, Universidad Autónoma Metropolitana, Mexico City, Mexico
Interests: photocatalysis

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Guest Editor
Department of Micro and Nanotechnologies, Institute of Applied Sciences and Technology, National Autonomous University of Mexico, Mexico City 04510, Mexico
Interests: photocatalytic processes
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Investigadores por México, Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Dr. Manuel Nava 6, San Luis Potosí 78210, Mexico
Interests: photocatalytic processes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The rapid development of industrialization has led to excessive emissions of hazardous pollutants into our water and air resources, which has a negative impact on health and the environment. Photocatalysis is widely used to degrade and mineralize hazardous organic compounds, reduce toxic metal ions to their non-toxic states, deactivate and destroy waterborne microorganisms, decompose air pollutants including volatile organic compounds, NOx, CO, and NH3, remove pathogens from air, and degrade waste plastics.

This Special Issue is a collection of original research papers, reviews, and commentaries that address the development and application of innovative photocatalytic systems for environmental remediation. Submissions are welcome in, but are not limited to, the following areas:

  • Development of novel semiconductors and/or composites for environmental remediation;
  • Photocatalytic degradation of emerging contaminants in wastewater;
  • Photocatalytic hydrogen production
  • Use of photocatalysis for indoor and urban air quality intervention;
  • Scale-up approaches for photocatalytic degradation systems;
  • Economic and life cycle assessment for environmental remediation by photocatalysis.

Dr. Socorro Oros
Dr. Juan Carlos Durán-Álvarez
Dr. Esmeralda Mendoza
Guest Editors

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Keywords

  • photocatalysis
  • composite materials
  • wastewater treatment
  • organic pollutants
  • dyes degradation
  • photocatalytic hydrogen production
  • emerging water contaminants
  • indoor air quality
  • urban air quality
  • life cycle analysis

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Published Papers (1 paper)

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Research

15 pages, 7227 KiB  
Article
Hydrogen Production Through Water Splitting Reactions Using Zn-Al-In Mixed Metal Oxide Nanocomposite Photocatalysts Induced by Visible Light
by Monserrat Suárez-Quezada, Víctor Manuel Suárez-Quezada, Fernando Tobola-Inchaurregui, Socorro Oros-Ruiz and Sandra Cipagauta-Díaz
Catalysts 2024, 14(11), 835; https://doi.org/10.3390/catal14110835 - 20 Nov 2024
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Abstract
In this study, the synthesis of hybrid photocatalysts of Zn-Al-In mixed metal oxides were activated by using visible light, derived from Zn-Al-In layered double hydroxide (ZnAlIn-LDH), and these nanocomposites demonstrated high efficiency for photocatalytic H2 production under UV light when using methanol [...] Read more.
In this study, the synthesis of hybrid photocatalysts of Zn-Al-In mixed metal oxides were activated by using visible light, derived from Zn-Al-In layered double hydroxide (ZnAlIn-LDH), and these nanocomposites demonstrated high efficiency for photocatalytic H2 production under UV light when using methanol as a sacrificial agent. The most active photocatalytic material produced 372 μmol h−1 g−1 of H2. The characterization of these materials included X-ray diffraction (DRX), infrared spectroscopy (FTIR), X-ray fluorescence spectroscopy (XRF), X-ray spectroscopy (XEDS), scanning electron microscopy analysis (SEM), transmission electron microscopy (TEM), diffuse reflectance spectroscopy, and N2- physisorption. In addition, the materials were characterized by photoelectrochemical techniques to explain the photocatalytic behavior. Subsequently, the photocatalytic performance for the water-splitting reactions under visible irradiation was evaluated. The ZnAlIn-MMOs with an In/(Al + In) molar ratio of 0.45 exhibited the highest photocatalytic activity in tests under visible light, attributed to the efficient separation and transport of photogenerated charge carriers originating from the new nanocomposite. This discovery indicates a method for developing new types of heteronanostructured photocatalysts which are activated by visible light. Full article
(This article belongs to the Special Issue Advances in Photocatalytic Degradation)
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