1. A p-n Junction by Coupling Amine-Enriched Brookite-TiO 2 Nanorods with Cu x S Nanoparticles for Improved Photocatalytic CO 2 Reduction.
- Author
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Chen Z, Zhu X, Xiong J, Wen Z, and Cheng G
- Abstract
Photocatalytic CO
2 reduction is a promising technology for reaching the aim of "carbon peaking and carbon neutrality", and it is crucial to design efficient photocatalysts with a rational surface and interface tailoring. Considering that amine modification on the surface of the photocatalyst could offer a favorable impact on the adsorption and activation of CO2 , in this work, amine-modified brookite TiO2 nanorods (NH2 -B-TiO2 ) coupled with Cux S (NH2 -B-TiO2 -Cux S) were effectively fabricated via a facile refluxing method. The formation of a p-n junction at the interface between the NH2 -B-TiO2 and the Cux S could facilitate the separation and transfer of photogenerated carriers. Consequently, under light irradiation for 4 h, when the Cux S content is 16%, the maximum performance for conversion of CO2 to CH4 reaches at a rate of 3.34 μmol g-1 h-1 in the NH2 -B-TiO2 -Cux S composite, which is approximately 4 times greater than that of pure NH2 -B-TiO2 . It is hoped that this work could deliver an approach to construct an amine-enriched p-n junction for efficient CO2 photoreduction.- Published
- 2023
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