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Advanced Photocatalytic Materials for Energy Conversion and Environmental Remediation

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Cross-Field Chemistry".

Deadline for manuscript submissions: closed (31 August 2024) | Viewed by 1151

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Guest Editor
Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
Interests: photocatalytic degradation for organic pollutants; electrocatalytic degradation for organic pollutants; photoelectrochemical cells; electrochemical sensor; synthesis of nanomaterials

Special Issue Information

Dear Colleagues,

Photocatalytic materials have attracted increasing amounts of attention across the world due to their great potential in solar energy conversion and environmental remediation. Importantly, photocatalysts have spurred enormous interests and substantial advances in the synthesis and characterization of photocatalytic materials; in the revealing and understanding of fundamental photocatalytic mechanisms and kinetics; in optimizing mass transfer, photon transfer, light distribution and utilization; and in the optimization of operational reaction parameters. Advanced photo-reactor design and scale-up toward renewable energy, environmental remediation, and the synthesis of essential organic compounds are also emerging throughout the world. This Special Issue of Molecules aims to publish the research advances involving novel and cutting-edge reports of photocatalysts and their potential applications that satisfy a real and urgent need for the dissemination of research results. This Special Issue also provides a forum for green photocatalytic materials scientists and engineers, physicists, and chemists to rapidly communicate on the most critical topics in the field of photocatalysts. Original research papers, short communications, and review papers with outstanding quality and significant contributions to the current photocatalysis knowledge are encouraged. We strongly believe that these advances would be exciting to a broad range of readers and contribute to increasing the visibility and impact of Molecules.

Prof. Dr. Xinman Tu
Guest Editor

Manuscript Submission Information

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Keywords

  • TiO2-based photocatalysts
  • metal–organic frameworks (MOF)
  • plasmonics and hybrids
  • perovskite materials
  • polymers
  • bismuth-based catalysts
  • graphitic carbon nitride

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Published Papers (1 paper)

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Research

13 pages, 3698 KiB  
Article
Visible-Light-Induced Photocatalytic Degradation of Naproxen Using 5% Cu/TiO2, Transformation Products, and Mechanistic Studies
by Sarah Ahmed Hasan, Abbas Khaleel, Soleiman Hisaindee and Mohammed A. Meetani
Molecules 2024, 29(23), 5752; https://doi.org/10.3390/molecules29235752 - 5 Dec 2024
Viewed by 857
Abstract
The presence of drugs in wastewater effluent is of concern due to their effects on the aquatic fauna and flora and there are growing efforts for their removal from the environment. In this paper, we study the photocatalytic visible-light degradation of naproxen, an [...] Read more.
The presence of drugs in wastewater effluent is of concern due to their effects on the aquatic fauna and flora and there are growing efforts for their removal from the environment. In this paper, we study the photocatalytic visible-light degradation of naproxen, an over-the-counter anti-inflammatory drug, using 5% copper-doped TiO2. The photocatalyst was characterized by XRD and BET surface area measurements. The optimal conditions for the degradation of 1 × 10−3 M of naproxen were found to be 3 h, with a catalyst loading of 50 mg/100 mL of the drug solution, and an acidic pH of 4.55. The degradation followed pseudo-first order kinetics and achieved a photodegradation efficiency of 44.8%. HPLC was used to separate the degradation products and their structures were determined using MS/MS data. A pathway for the degradation of naproxen is proposed along with degradation mechanisms. The major degradation events involve the formation of hydroxyl radicals, hydroxylation, keto-enol tautomerism, and decarboxylation. Full article
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