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Synthesis of TiO2−x/W18O49 hollow double-shell and core–shell microspheres for CO2 photoreduction under visible light

Tan, J.Z.Y., Gavrielides, S., Belekoukia, M., Thompson, W.A., Negahdar, L., Xia, F.ORCID: 0000-0002-4950-3640, Maroto-Valer, M.M. and Beale, A.M. (2020) Synthesis of TiO2−x/W18O49 hollow double-shell and core–shell microspheres for CO2 photoreduction under visible light. Chemical Communications, 56 (81). pp. 12150-12153.

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Abstract

TiO2−x/W18O49 with core–shell or double-shelled hollow microspheres were synthesized through a facile multi-step solvothermal method. The formation of the hollow microspheres with a double-shell was a result of the Kirkendall effect during the solvothermal treatment with concentrated NaOH. The advanced architecture significantly enhanced the electronic properties of TiO2−x/W18O49, improving by more than 30 times the CO2 photoreduction efficiency compared to the pristine W18O49. Operando DRIFTS measurements revealed that the yellow TiO2−x was a preferable CO2 adsorption and conversion site.

Item Type: Journal Article
Murdoch Affiliation: Chemistry and Physics
Publisher: Royal Society of Chemistry
Copyright: © 2020 The Royal Society of Chemistry
URI: http://researchrepository.murdoch.edu.au/id/eprint/58327
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