Special Issue "TiO2-Based Nanostructures, Composites and Hybrid Photocatalysts"
Deadline for manuscript submissions: closed (30 June 2021).
Interests: multifunctional metal oxides; semiconductor nanostructures; photocatalytic materials; titanium dioxide; semiconductor optics; non-linear optical spectroscopy; photoluminescence; gas sensing; optical sensors
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Environmental pollution and depletion of fossil fuels represent two crucial obstacles for the sustainable development of contemporary human society. It is becoming more and more imperative to accelerate the develompment of green technologies capable to control and reduce pollution growth. Hence, it can be easily foreseen that confronting these issues will engage increasing efforts and resources.
Among the research and development fields dealing with the mentioned issues, those employing photocatalysis are likely to grow in relevance and spread new applications and technologies. Titanium dioxide (TiO2) is nowdays one of the most widely used photocatalytic materials due to its ability to oxidatively decompose organic pollutants, low cost, durability and corrosion resistance. It is employed in several applications in the energy and environmental fields, including, for example: hydrogen evolution, photoelectrochemical conversion, photodegradation of organic contaminants, air and water purification systems, sterilization and bacterial detoxification. TiO2 also proved to be useful for other applications, such as gas sensing, bone implant fixation, drug delivery, etc.
Much effort is nowdays focusing on TiO2 modifications enambling to extend the TiO2 optical absorption toward the visible range (in order to operate effectively under natural sunlight irradiation) and to improve the spatial separation of photogenerated charges. To these aims, several TiO2 doping strategies and TiO2-based hybrid composites have been scrutinized. In these kind of studies, foundational knowledge of the basic physical and chemical properties of the involved materials/components involved is required, as well as exhaustive investigations of the targeted application.
The aim of this Special Issue is to cover the main aspects of fundamental and applied research of TiO2 and TiO2-based materials and composites, such as (but not limited to) the following:
- Fundamental properties of TiO2 nanostructures: electronic states, defects, structural properties, optical properties, etc.
- Synthesis of bulk TiO2 crystals, TiO2 nanoparticles and thin films
- Modification of TiO2 nanostructures through doping, including non-metal doping (e.g. nitrogen-doped TiO2, fluorine-doped TiO2, carbon-doped TiO2, etc.) and metal doping (e.g. Fe/TiO2, Cu/TiO2, Au/TiO2, Ag/TiO2, Pd/TiO2, Pt/TiO2, etc.)
- Self-doped TiO2 nanostructures: oxygen vacancies, black titania, etc.
- Composites and hybrid photocatalysts based on TiO2 and carbon nanomaterials (e.g. TiO2/graphene, TiO2/graphene oxide, TiO2/carbon nanotubes, TiO2/g-C3N4, etc.) or on TiO2 and inorganic materials (e.g. TiO2/MoS2 and other 2D transition metal dichalcogenides)
- Applications, including water remediation, degradation of dyes and/or farmaceuticals, CO2 reduction, hydrogen evolution, fuels production, plasmonic photocatalysis, TiO2-based composites in perovskite solar cells, gas sensors, biosensors and biomedical applications, etc.
It is our pleasure to invite you to submit a manuscript for this Special Issue. Full papers, communications, and reviews are all welcome.
Dr. Stefano Lettieri
Assoc. Prof. Michele Pavone
Manuscript Submission Information
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- TiO2-based nanostructures and composites
- TiO2-based hybrid photocatalysts
- water remediation
- environmental applications and green technologies
- CO2 reduction
- hydrogen production
- energy applications