Preprint Review Version 1 This version is not peer-reviewed

Photocatalytic Reactions over TiO2-Based Interfacial Charge Transfer Complexes

Version 1 : Received: 11 October 2024 / Approved: 11 October 2024 / Online: 11 October 2024 (10:47:18 CEST)

How to cite: Lazić, V.; Nedeljković, J. M. Photocatalytic Reactions over TiO2-Based Interfacial Charge Transfer Complexes. Preprints 2024, 2024100899. https://doi.org/10.20944/preprints202410.0899.v1 Lazić, V.; Nedeljković, J. M. Photocatalytic Reactions over TiO2-Based Interfacial Charge Transfer Complexes. Preprints 2024, 2024100899. https://doi.org/10.20944/preprints202410.0899.v1

Abstract

The present review is related to the novel approach for improvement of the optical properties of wide bandgap metal oxides, in particular TiO2, based on the formation of the inorganic-organic hybrids that display absorption in the visible spectral range due to the formation of interfacial charge transfer (ICT) complexes. We outlined the property requirements of TiO2-based ICT complexes for efficient photo-induced catalytic reactions, emphasizing the simplicity of the synthetic procedure, the possibility of the fine-tuning of the optical properties supported by the density functional theory (DFT) calculations, and the formation of a covalent linkage between inorganic and organic components of hybrids, i.e., the nature of the interface. In addition, this study provides a comprehensive insight into potential applications of TiO2-based ICT complexes in photo-driven catalytic reactions (water splitting and degradation of organic molecules), including the identification of reactive species that participate in photocatalytic reactions by the spin-trapping electron paramagnetic resonance (EPR) technique. Considering the practically limitless number of combinations between inorganic and organic components capable of forming oxide-based ICT complexes and with the knowledge that this research area is unexplored, we are confident it is worth studying, and we emphasized some further perspectives.

Keywords

Interfacial charge transfer complexes; Titanium dioxide; Solar energy conversion; Optical properties; Water splitting reaction; Photocatalytic oxidation reactions; Interface properties; EPR spin-trapping

Subject

Chemistry and Materials Science, Nanotechnology

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