Zou Hai, Qi Yu, Du Shiwen, Liu Lifang, Xin Xueshang, Bao Yunfeng, Wang Shuowen, Feng Zhaochi, Zhang Fuxiang
State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, China.
University of Chinese Academy of Sciences, Beijing 100049, China.
Chem Commun (Camb). 2022 Sep 22;58(76):10719-10722. doi: 10.1039/d2cc02903k.
A pyrochlore-structural oxynitride NdTaON with a visible light absorption edge of 620 nm was explored for photocatalytic water splitting. Dual functions of NdTaON were confirmed by proton reduction and water oxidation half-reactions through separately loading Pt or CoO as a cocatalyst in the presence of the corresponding sacrificial reagent. Finally, the platinum modified sample (Pt/NdTaON) was prepared and employed as the H-evolving photocatalyst to fabricate an effective photocatalytic Z-scheme overall water splitting together with PtO/WO as the O-evolving photocatalyst and IO/I as shuttle ions under visible light irradiation.
一种具有620nm可见光吸收边缘的烧绿石结构氮氧化物NdTaON被用于光催化水分解研究。通过在相应牺牲试剂存在下分别负载Pt或CoO作为助催化剂，通过质子还原和水氧化半反应证实了NdTaON的双重功能。最后，制备了铂修饰样品（Pt/NdTaON）并用作析氢光催化剂，与作为析氧光催化剂的PtO/WO以及IO/I作为穿梭离子一起，在可见光照射下构建了有效的光催化Z型全水分解体系。
