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首页> 外文期刊>Catalysis science & technology >Efficient difunctional photocatalyst prepared in situ from Prussian blue analogues for catalytic water oxidation and visible-light absorption
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Efficient difunctional photocatalyst prepared in situ from Prussian blue analogues for catalytic water oxidation and visible-light absorption

机译：高效双官能的光催化剂的准备从普鲁士蓝类似物原位催化水氧化和可见光吸收

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The photocatalytic water oxidation reaction (WOR) usually requires the use of a noble metal catalyst as well as a photosensitizer, therefore developing new types of non-noble metal and photosensitizer-free catalysts is of great significience for the photocatalytic WOR. In this paper, a facile paradigm for designing photosensitizer-free difunctional catalysts from old fashioned cubic MOFs as Prussian blue analogues (PBAs) is presented. The as-prepared Co(OH)(2)-modified CuO (Co(OH)(2)/CuO) nanoparticles displayed robust catalytic efficiency (3567 mol h(-1) g(-1)) toward visible-light-driven water oxidation reaction (WOR). Intriguingly, insights into the WOR pathway indicated that the Co(OH)(2)/CuO nanoparticles could serve as both water oxidation catalysts and visible light absorption centers and they still showed photocatalytic performance under monochromatic light at 765 nm and maintained 64.2% oxygen evolution compared to the case with light cutting off at 420 nm. The Co(OH)(2)/CuO nanoparticles were shown to be quite stable in the reaction system via characterizing their properties before and after the reactions. While the synergetic effect between Co(OH)(2) and the CuO clusters was found to be key to the abnormal photocatalytic activity of this catalyst in the complicated WOR process. We hope that this contribution will serve as a useful template for other researchers to design new transition metal catalysts for WOR.
机译：光催化水氧化反应(磨破)通常需要使用贵金属催化剂以及光敏剂,因此开发新类型的非贵金属和photosensitizer-free催化剂是伟大的significience光催化磨破。纸,一个灵巧的设计范例photosensitizer-free双官能的催化剂从老式的立方mof普鲁士蓝类似物(pba)。有限公司(OH)(2)修改措(Co (OH)(2) /错)纳米颗粒显示强劲的催化效率(3567摩尔h (1) g(1))的方向visible-light-driven水氧化反应(磨破)。路径表明,有限公司(OH)(2) /措纳米粒子可以作为水氧化催化剂和可见光吸收中心他们仍然显示,光催化性能在765纳米和单色光保持64.2%的氧气而进化在420纳米光切断。有限公司(哦)(2)/措纳米颗粒被显示系统通过相当稳定的反应之前和之后的属性特征的反应。有限公司(OH)(2)与措集群被发现光催化活性异常是关键这种催化剂在复杂的磨破的过程。我们希望这将成为一个贡献有用的其他研究人员设计的模板磨破的新过渡金属催化剂。

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