Highly selective photocatalytic reduction of carbon dioxide with water over silver-loaded calcium titanate

作者: Akihiko Anzai , Naoto Fukuo , Akira Yamamoto , Hisao Yoshida

DOI: 10.1016/J.CATCOM.2017.06.046

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摘要: Abstract The once reported Ag-modified CaTiO 3 photocatalyst was reexamined by optimizing the Ag loading amount and using a conventional photochemical reactor. This revealed that actually showed both high production rate of CO (54 μmol h −1 ) excellent selectivity towards formation (94%) suppressing H 2 via water splitting. It is suggested photocatalytic performance originates from not only optimized cocatalyst irradiation light intensity but also concentration dissolved achieved bubbling flow at lower reaction temperature. These conditions provided ca. 40 times higher rate. proposed deposited small nanoparticles are selective active sites for crystal surface produces preferably.

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