TiO2 Surface Hybridisation with Ag and CuO for Solar-Assisted Environmental Remediation and Sustainable Energy Applications

09 July 2024, Version 2
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Industrialisation has led to unprecedented levels of outdoor air pollution, posing a significant health risk to human beings. Consequently, there is an urgent need to replace fossil fuels with sustainable energy sources, thereby mitigating these risks and providing a safer outdoor and indoor environment. Titanium dioxide is a versatile transition metal oxide with applications ranging from energy conversion to environmental remediation. However, it faces limitations, particularly in its absorption spectrum and charge separation efficiency, and enhancing these properties remains a significant challenge. In this research work, we have decorated the surface of TiO2 hybridising it with noble-metal and/or noble-metal oxides (Ag and/or CuxO) to improve the photocatalytic performances (monitoring the removal of nitrogen oxides and benzene, and hydrogen generation from water splitting) under simulated solar-light irradiation. Our results showed that titania modified with an Ag:Cu molar ratio equal to 1:1, not only exhibited the most promising performance in terms of nitrogen oxides and benzene removal, it was the optimum amount for the light-induced generation of hydrogen from water splitting.

Keywords

Titania
noble-metals surface modification
Hybridisation
electron paramagnetic resonance
Gaseous Pollutants
NOx
VOCs
Benzene
H2 Generation

Supplementary materials

Title
Description
Actions
Title
Ag-Cu-TiO2 Supplementary Information
Description
Quite a lot of stuff in there! Cheers!
Actions

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.