Dual Ag/Co cocatalyst synergism for the highly effective photocatalytic conversion of CO(2) by H(2)O over Al-SrTiO(3).
Dual Ag/Co cocatalyst synergism for the highly effective photocatalytic conversion of CO(2) by H(2)O over Al-SrTiO(3).
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双重Ag/Co cocatalyst协同作用,用于H(2)O高于Al-Srtio(3)的H(2)O对CO(2)的高效光催化转化。
DOI:
10.1039/d1sc00206f
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发表时间:
2021-02-24
期刊:
影响因子:
8.4
通讯作者:
Tanaka T
中科院分区:
文献类型:
--
作者:
Wang S;Teramura K;Hisatomi T;Domen K;Asakura H;Hosokawa S;Tanaka T
Loading Ag and Co dual cocatalysts on Al-doped SrTiO3 (AgCo/Al-SrTiO3) led to a significantly improved CO-formation rate and extremely high selectivity toward CO evolution (99.8%) using H2O as an electron donor when irradiated with light at wavelengths above 300 nm. Furthermore, the CO-formation rate over AgCo/Al-SrTiO3 (52.7 μmol h−1) was a dozen times higher than that over Ag/Al-SrTiO3 (4.7 μmol h−1). The apparent quantum efficiency for CO evolution over AgCo/Al-SrTiO3 was about 0.03% when photoirradiated at a wavelength at 365 nm, with a CO-evolution selectivity of 98.6% (7.4 μmol h−1). The Ag and Co cocatalysts were found to function as reduction and oxidation sites for promoting the generation of CO and O2, respectively, on the Al-SrTiO3 surface. Deposition Ag and Co dual cocatalysts onto Al-SrTiO3 significantly improves its activity for photoreduction of CO2 by H2O, with extremely high selectivity to CO evolution (99.8%), in which Ag and Co enable CO2 reduction and H2O oxidation, respectively.
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影响因子:
3.2
作者:
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通讯作者:
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