Solar energy driving CO reduction is a potential strategy that not only mitigates the greenhouse effect caused by high CO level in atmosphere, but also yields carbon chemicals/fuels at the same time. Herein, a facile way to design the heterogeneous TiO@InS hollow structures possessing robust light harvesting in both ultraviolet and visible regions is proposed and exhibits a higher generation rate of 25.35 and 1.24 μmol·g·h for photocatalytic CO reduction to CO and CH, respectively. The excellent photocatalytic catalytic performance comes from i) the confined heterostructured TiO@InS possesses a suitable band structure and a broadband-light absorbing capacity for CO photoreduction, ii) the rich interfaces between nanosized TiO and InS on the shell can significantly reduce the diffusion length of carriers and enhance the utilization efficiency of photogenerated electron-hole pairs, and iii) enriched surface oxygen vacancies can provide more active sites for CO adsorption.
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| http://dx.doi.org/10.1016/j.jcis.2024.01.086 | DOI Listing |
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