Novel Advancements Towards Nanocomposite Synthesis and Their Potential Application in Photocatalysis, 2nd Edition

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

Deadline for manuscript submissions: 31 October 2025 | Viewed by 239

Special Issue Editors


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Guest Editor
School of Chemical Sciences, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
Interests: green synthesis of hybrid nanomaterials/polymers, their characterization, and their potential applications; photocatalysis, adsorption studies, and microbial fuel technology for the removal of priority organic pollutants; wastewater treatment using synthesized graphene and metal oxide-based composite materials; degradation of organic pollutants present in wastewater, and the identification and characterization of intermediate products formed during photooxidation processes
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Department of Materials Science and Engineering, WW4-LKO, University of Erlangen Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
Interests: synthesis of single-atom catalysts, semiconductor photo/electro-catalysts, metal–organic frameworks, graphene, graphitic carbon nitride, TiO2 nanosheets and nanotubes, perovskites oxides, and hybrid heterojunctions for energy-related applications such as IPCE, photo/electrocatalytic H2 production; solid oxide fuel cells; gas and glucose sensing; environmental remediation
College of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, USA
Interests: role of nanoparticles in inflammation and rheumatoid arthritis; macrophages; fibroblast; oxidative stress; angiogenesis and rheumatoid arthritis
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Faculty of Resource Science and Technology, University Malaysia Sarawak, Sarawak, Malaysia
Interests: synthesis of molecular imprinting polymers for the removal/extraction of dyes, fungicides, herbicides, and various natural products from environmental and biological samples; development of new test methods and determining standard conditions for the analysis (separation, isolation, and determination) of various analytes from environmental and biological samples; analysis of samples like surfactants, amino acids, drugs, vitamins, sugars, and metal ions
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Special Issue Information

Dear Colleagues,

Nanoparticles have gained substantial interest from researchers over last few decades due to their unique chemical and physical properties. These nanoparticles also have shown outstanding performance in various fields of research, such as photocatalysis. Within photocatalysis, they exhibit efficient performance with metal oxides as well as other configurations like sulfides, etc. Additionally, some novel nanocomposites such as doped metal oxide-based nanocomposites, doped polymer nanocomposites, and graphene-based nanocomposites have recently attracted a great deal of interest due to their unique physical–chemical properties. Furthermore, several advances have been made regarding their synthesis methods. However, further efforts are required to improve and tailor the properties of nanocomposites, lower costs, and establish clean systems (e.g., green synthesis methods), presenting the focus of work moving forward.

This Special Issue invites investigators to submit their original research articles and reviews based on the novel achievements of nanocomposites in the field of photocatalysis (degradation of pollutants, intermediate product studies).

Dr. Khalid Umar
Dr. Waseem Raza
Dr. Sadiq Umar
Dr. Showkat Ahmad Bhawani
Guest Editors

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Keywords

  • green synthesis of nanomaterials
  • interfaced/doped nanocomposites
  • potential applications of nanoparticles
  • nanoparticles surface functionalization.

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Published Papers (1 paper)

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Research

17 pages, 7661 KiB  
Article
Study of Calcination Temperature Influence on Physicochemical Properties and Photodegradation Performance of Cu2O/WO3/TiO2
by Jenny Hui Foong Chau, Chin Wei Lai, Bey Fen Leo, Joon Ching Juan, Kian Mun Lee, Irfan Anjum Badruddin, Amit Kumar and Gaurav Sharma
Catalysts 2025, 15(6), 601; https://doi.org/10.3390/catal15060601 - 18 Jun 2025
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Abstract
Photodegradation is a sustainable green technology that has been studied worldwide, especially for wastewater treatment. The calcination temperature has an important impact on the physicochemical properties of the prepared photocatalysts. In this study, a ternary photocatalyst of Cu2O/WO3/TiO2 [...] Read more.
Photodegradation is a sustainable green technology that has been studied worldwide, especially for wastewater treatment. The calcination temperature has an important impact on the physicochemical properties of the prepared photocatalysts. In this study, a ternary photocatalyst of Cu2O/WO3/TiO2 (CWT) was successfully synthesized using an ultrasonic-assisted hydrothermal technique, and the calcination temperature was varied from 500 to 800 °C. The characterization outcomes proved that the anatase phase titanium dioxide (TiO2) in the CWT composite transformed to rutile phase TiO2 when the calcination temperature reached 700 °C and 800 °C. The surface area of the CWT composite decreased from 35.77 to 8.09 m2.g−1 and the particle size of the CWT composite increased from 39.11 to 180.25 nm with an increasing calcination temperature from 500 to 800 °C. Photoelectrochemical (PEC) studies showed the charge-transfer resistance of 208.10 Ω, electron lifetime of 32.48 ms, current density of 1.40 mA.cm−2, transient photovoltage of 0.53 V, and p-n heterojunction properties for CWT-500. Reactive Black 5 (RB5) was used as the model pollutant to examine the photodegradation performance. The photodegradation rate of CWT-500 was the highest (0.70 × 10−2 min−1) due to its large surface area, effective separation of photoexcited electron-hole pairs, and low photoexcited charge carrier recombination rate. Full article
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