Nanocatalysts in Energy and Environmental Applications

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

Deadline for manuscript submissions: 30 June 2025 | Viewed by 597

Special Issue Editor


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Guest Editor
Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
Interests: nanomaterials; polyimide macromolecules; dielectric materials; photocatalysis; graphitic carbon nitride; catalytic activity

Special Issue Information

Dear Colleagues,

Nanocatalysts have emerged as key materials in advancing energy and environmental technologies due to their unique properties at the nanoscale, such as high surface area, enhanced reactivity, and tunable physicochemical characteristics. These properties make them ideal candidates for a wide range of applications, including energy conversion, storage, and environmental remediation.

This Special Issue encompasses, but is not limited to, nanocatalysts for hydrogen production, fuel cells, biofuels, and carbon capture. In the environmental field, we are particularly interested in nanocatalysts for pollutant degradation, wastewater treatment, and air purification. This Special Issue will also highlight emerging catalytic technologies such as photocatalysis, electrocatalysis, and biocatalysis, which leverage nanomaterials to enhance efficiency and sustainability.

By gathering cutting-edge research on nanocatalysts in these critical areas, this Special Issue aims to provide a comprehensive overview of the current state of the art, highlight future challenges, and present new opportunities for the development of sustainable and efficient catalytic processes in energy and environmental sectors.

Dr. Qing Li
Guest Editor

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Keywords

  • nanostructured catalysts for energy conversion and storage
  • semiconductor nanostructured materials for energy and environmental applications
  • environmental remediation
  • supported nanocatalysts
  • nanostructured electrocatalysts
  • nanostructured photocatalysts
  • nanostructured photoelectrocatalysts
  • nanostructured bio/photobiocatalysts
  • nanostructured catalysts for photosynthesis/artificial photosynthesis
  • nanostructured membranes for water purification
  • photoelectrochemical water splitting
  • oxygen reduction reaction
  • oxygen/hydrogen evolution reaction
  • bioinspired catalysts
  • sustainable/clean energy

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Published Papers (1 paper)

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Research

20 pages, 6117 KiB  
Article
Sustainable Synthesis of Zirconium Dioxide (ZrO2) Nanoparticles Utilizing Asphodelus fistulosus Extract for Congo Red Degradation
by Rand A. N. Alkhalifa, Abuzar E. A. E. Albadri, Reham Ali, Abdullah H. Alluhayb, Alaa M. Younis and Sayed M. Saleh
Catalysts 2025, 15(2), 123; https://doi.org/10.3390/catal15020123 - 27 Jan 2025
Viewed by 489
Abstract
This research presents a green approach to synthesizing zirconium oxide (ZrO2) nanoparticles using an Asphodelus fistulosus plant extract as a reducing and stabilizing agent. The synthesized ZrO2 nanoparticles were characterized using various advanced techniques. The XRD pattern provides different forms [...] Read more.
This research presents a green approach to synthesizing zirconium oxide (ZrO2) nanoparticles using an Asphodelus fistulosus plant extract as a reducing and stabilizing agent. The synthesized ZrO2 nanoparticles were characterized using various advanced techniques. The XRD pattern provides different forms of ZrO2, like tetragonal and cubic forms, and the results confirmed the successful formation of crystalline ZrO2 nanoparticles with a definite morphology. The XPS data exhibit that the bioactive chemicals present in the extract, including polyphenols, flavonoids, and reducing sugars, perform the functions of reducing and capping agents. Additionally, CR dye molecules may create hydrogen bonds with these surface moieties, which are approved by FTIR. These interactions may assist in aligning dye molecules with catalytically active regions on ZrO2 surfaces and may interact with photogenerated species. The catalytic activity of the synthesized ZrO2 nanoparticles was evaluated for the degradation of Congo red dye under ultraviolet irradiation. The nanoparticles exhibited excellent photocatalytic activity, degrading a significant amount of the dye within a short period. Various parameters were investigated to optimize the photodegradation process, including irradiation time, catalyst dosage, pH, and initial dye concentration. The optimal conditions were determined to be a pH of 7, a catalyst loading of 20 mg/L, and an irradiation time of 75 min, resulting in a remarkable ≈92% degradation efficiency. This green synthesis method offers a sustainable and eco-friendly alternative to conventional chemical methods for producing ZrO2 nanoparticles, which have potential applications in environmental remediation. Full article
(This article belongs to the Special Issue Nanocatalysts in Energy and Environmental Applications)
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