Catalyst Materials for Waste Treatment

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: closed (1 May 2025) | Viewed by 1775

Special Issue Editors


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Guest Editor
Environmental Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), New Borg El Arab City, Alexandria 21934, Egypt
Interests: materials sciences; nanotechnology; environmental applications; wastewater treatment; gas sensor applications

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Guest Editor
Fuels and Combustion Engines Laboratory, Energy Resources Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria 21934, Egypt
Interests: water and wastewater treatment technologies; nano-technology and nano-materials; membrane technology; membrane desalination; reverse osmosis; water desalination; microwave processing; biosynthesis; bio-technology; biodiesel; bio-lubricants and bio-greases and micro-reactors
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Public Works Engineering Department, Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt
Interests: advanced oxidation processes; photocatalysis; industrial wastewater; nanomaterials

Special Issue Information

Dear Colleagues,

The release of industrial wastewater containing various pollutants into the environment without effective degradation (e.g., dyes, pesticides, antibiotics, phenol) can harm aquatic life and human health. Further, solid waste like plastic is generated in large volumes and poses a significant risk to the environment. Traditional treatment approaches cannot efficiently remove these wastes. Recently, catalyst materials have been widely employed in different advanced oxidation processes such as photocatalysis, periodate activation, Fenton-like reactions, and persulfate activation for the effective remediation of industrial effluents and plastic waste before their discharge into water streams. Further, researchers have focused on converting waste material into nanomaterials and their application in treatment systems as catalysts. This Special Issue will cover topics related to waste treatment issues including different techniques used for the preparation of nano-catalysts, the application of catalysts for the purification of different pollutants and depolymerization of plastic waste, and the conversion of wastes to value-added products for application in waste treatment. Thus, the aim of this Special Issue is to develop catalysts for treating waste materials, optimize degradation systems to efficiently degrade emerging pollutants using catalyst-based advanced oxidation processes, and manage waste materials by converting them into valuable products and employing them in waste treatment. The achievement of these objectives can reduce the hazards related to the presence of these wastes in the environment and enable participation in the sustainable management of solid waste.

Prof. Dr. Hassan Shokry
Prof. Dr. Marwa Elkady
Dr. Mahmoud Samy
Guest Editors

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Keywords

  • advanced oxidation processes
  • degradation of emerging pollutants
  • industrial waste treatment
  • nanomaterials
  • plastic waste
  • photo-degradation
  • photo-catalysis

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Published Papers (1 paper)

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Research

17 pages, 10025 KiB  
Article
Fast One-Step Microwave-Assisted Synthesis of Iron-Doped ZnS for Photocatalytic Applications
by Sonia J. Bailón-Ruiz, Yarilyn Cedeño-Mattei, Angelie M. Núñez-Colón and Kerianys Torres-Torres
Crystals 2024, 14(8), 699; https://doi.org/10.3390/cryst14080699 - 1 Aug 2024
Viewed by 1277
Abstract
Semiconductor Zn-based nanomaterials have emerged as promising agents for the photocatalytic degradation of organic pollutants in wastewater treatment. However, achieving efficient synthesis protocols capable of rapidly producing small structures directly in aqueous environments remains challenging. Microwave-assisted synthesis presents a viable solution by enabling [...] Read more.
Semiconductor Zn-based nanomaterials have emerged as promising agents for the photocatalytic degradation of organic pollutants in wastewater treatment. However, achieving efficient synthesis protocols capable of rapidly producing small structures directly in aqueous environments remains challenging. Microwave-assisted synthesis presents a viable solution by enabling one-step particle generation swiftly and directly in water through increased pressure, thereby easily elevating the boiling point. This study investigates the microwave-assisted one-step synthesis of pure and iron-doped ZnS nanoparticles and assesses their efficacy in photodegrading Quinoline Yellow (QY) in aqueous suspensions. The results demonstrate a significant degradation of QY in the presence of 1% iron-doped ZnS nanoparticles, achieving approximately 66.3% degradation with 500 ppm of doped nanoparticles after 270 min. These findings highlight the considerable potential of 1% iron-doped ZnS nanoparticles as effective nanocatalysts. Full article
(This article belongs to the Special Issue Catalyst Materials for Waste Treatment)
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