Photocatalytic Water Splitting to Hydrogen over a Visible Light-Driven LaTaON2 Catalyst
Photocatalytic Water Splitting to Hydrogen over a Visible Light-Driven LaTaON2 Catalyst
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DOI：
10.1016/s1872-2067(06)60032-6
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发表时间：
2006-07
影响因子：
16.5
通讯作者：
Meiying Liu;W. You;Zhibin Lei;T. Takata;K. Domen;Can Li
中科院分区：
文献类型：
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作者：
Meiying Liu;W. You;Zhibin Lei;T. Takata;K. Domen;Can Li
以NH4Cl为矿化剂，采用高温氨解法制备了具有钙钛矿结构的lataon2催化剂。与LaTaO4相比，lataon2的光学吸收边发生了明显的红移。在可见光照射下，以Pt或Ru为助催化剂的lataon2在乙醇作为牺牲电子试剂存在下表现出较高的水还原成h22的活性。当铂和钌同时存在时，生产效率显著提高。
The LaTaON2catalyst with a perovskite structure has been successfully prepared by a high-temperature ammonolysis technique using NH4Cl as the mineralizer. The optical absorption edge of LaTaON2is significantly red-shifted compared with that of LaTaO4. Under visible light irradiation, LaTaON2with Pt or Ru as a co-catalyst shows high activity for reduction of water to H2in the presence of ethanol as a sacrificial electron reagent. A remarkable improvement in production efficiency was observed when both Pt and Ru were present.