Environmental Remediation via Metal-Oxides-Mediated Heterogeneous Photocatalysis

Dear Colleagues,

Over the last decade, the general public has become increasingly interested in environmental protection including cleaning air and water and also sustainable ways of producing energy. Access to clean water should not be taken as a given in any part of the world and the increasing atmospheric concentration of CO₂ heavily affects Earth’s climate.

Since the pioneering work of Fujishima and Honda (A. Fujishima, K. Honda, Nature 238, 1972, 37–38), the field of photocatalysis has attracted the attention of the scientific community. An ever-increasing number of publications focus on using solar light efficiently both to degrade harmful gaseous (e.g., NOx) or liquid pollutants (e.g., pharmaceuticals in wastewater effluents) and to reduce atmospheric CO₂ concentration.

In the field of photocatalysis, one family of materials stands out as the most studied: metal oxides. Metal oxides provide a unique selection of properties such as (but not limited to) low-cost and toxicity, high availability, semiconductivity, a great variety of synthesis processes and modification techniques, and tunable light-absorbing capabilities. Their most prominent drawback – a usually very large bandgap – can today be addressed synthetically by strategies such as doping or compounding.

Submissions to this Special Issue on “Environmental Remediation via Metal-Oxide-Mediated Heterogeneous Photocatalysis” are welcome in the form of original research papers or short reviews about the use of metal oxides in the following photocatalytic processes: CO₂ conversion to useful products and platform chemicals; NOx reduction; degradation of emerging contaminants present in water; novel design of photocatalytic reactors; identification of kinetics, intermediates, and products from photocatalytic processes.

Dr. Nikolaos G. Moustakas
Dr. Fotis Katsaros
Guest Editors

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• Heterogeneous photocatalysis
• Environmental remediation using photocatalysis
• Photocatalytic CO₂ reduction
• NOx reduction
• Emerging contaminants in wastewater effluents
• Metal oxides
• Novel photoreactor designs
• Kinetics in photocatalytic processes
• Identification of intermediates and products from photocatalytic processes
• Advanced oxidation processes (by photocatalysis)