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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
(a) Photocatalytic CO production amount and (b) corresponding CO evolution rate for CV1, CV2, and CV3. (c) Schematic illustration of photocatalytic mechanism for CeVO4 under sunlight irradiation.