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Synthesis of TiO2-x/W18O49 Hollow Double-shell and Core-shell Microspheres for CO2 Photoreduction under Visible Light

Tan, JZY; Gavrielides, S; Belekoukia, M; Thompson, WA; Negahdar, L; xia, F; Maroto-Valer, M; (2020) Synthesis of TiO2-x/W18O49 Hollow Double-shell and Core-shell Microspheres for CO2 Photoreduction under Visible Light. Chemical Communications 10.1039/d0cc04036c. (In press). Green open access

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Abstract

TiO2x/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 doubleshell was a result of the Kirkendall effect during the solvothermal treatment with concentrated NaOH. The advanced architecture significantly enhanced the electronic properties of TiO2x/ W18O49, improving by more than 30 times the CO2 photoreduction efficiency compared to the pristine W18O49. Operando DRIFTS measurements revealed that the yellow TiO2x was a preferable CO2 adsorption and conversion site.

Type: Article
Title: Synthesis of TiO2-x/W18O49 Hollow Double-shell and Core-shell Microspheres for CO2 Photoreduction under Visible Light
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/d0cc04036c
Publisher version: https://doi.org/10.1039/d0cc04036c
Language: English
Additional information: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence http://creativecommons.org/licenses/by/3.0/
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10109152
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