Work

Synthesis of Titania nanowires doped with Cd on the based Polycalix[4]resorcinarene for photocatalytic oxidation of aromatic alcohols under LED irradiation

Year: 2025

Type: article

Abstract: Semiconductor photocatalysis as an alternative technology has received extensive attention for addressing worldwide energy and environmental issues. However, it is still a great challenge and imperative to profoundly understand the migration mechanisms for achieving the complete utilization of photoexcited charge carriers. Photocatalytic selective oxidation of alcohols into corresponding aldehydes has received enormous attention. In this paper, The structure of the TiO 2 NWs-Cd/Polycalix[4]resorcinarene nanocomposites was analyzed by thermal sonicate and solvothermal methods and then thoroughly characterized by a range of XRD, FT-IR, SEM, PL, and DRS techniques. The photoactivity of the compounds against the oxidation of four substituted benzyl alcohols was surveyed. The resultant nanocomposite (TiO 2 NWs-Cd(48%)/Polycalix[4]resorcinarene) demonstrates greater photocatalytic efficiency than both its pure TiO 2 and cadmium-doped TiO 2 for the oxidation of benzyl alcohols under the illumination of LED light (λ ≥ 400 nm). The introduction of the TiO 2 NWs-Cd on the surface of Polycalix[4]resorcinarene can improve the absorption ability in the visible region and the separation efficiency of charge carriers during photocatalytic oxidation. Hence, these obtained results show that the TiO 2 NWs-Cd (48wt%)/Polycalix[4]resorcinarene nanocomposite possesses high photocatalytic performance and excellent reusability in oxidation reactions and LED-light-driven organic oxidations carried out under mild conditions offering a sustainable approach to performing chemical transformations important to the chemical industry.

Source: Scientific Reports

DOI: 10.1038/s41598-025-89742-2

Authors: Asiyeh Sheikhzadeh Takabi, Arash Mouradzadegun

Institutions: Shahid Chamran University of Ahvaz, University of Tehran

Language: English

Topic: TiO2 Photocatalysis and Solar Cells

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,690

Funder: Shahid Chamran University of Ahvaz