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首页> 外文期刊>Journal of industrial and engineering chemistry >A novel cocatalyst of NiCoP significantly enhances visible-light photocatalytic hydrogen evolution over cadmium sulfide
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A novel cocatalyst of NiCoP significantly enhances visible-light photocatalytic hydrogen evolution over cadmium sulfide

机译：Nicop的一种新型Cocatalyst显着提高了硫化镉的可见光光催化氢气进化

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The technology of photocatalytic hydrogen evolution (PHE) by water splitting is a clean and sustainable approach to solve energy crisis and environmental problem. Many efforts have been made to develop new materials for this technology. In the photocatalytic water splitting, the cocatalyst is pivotal in improving the photocatalytic ability of the main catalyst by transferring electrons and providing active sites of H+ reduction. Here we report a new bimetal phosophide cocatalyst of NiCoP. The NiCoP can significantly improve the ability and durability of PHE for water splitting. The PHE rate is maximized to 28412.6 mu mol/g/h over a 8 wt.% NiCoP/CdS photocatalyst, which is 361 times of the 1 wt.parts per thousand Pt/CdS (78.7 mu mol/g/h) under the same water splitting condition. The apparent quantum yield in 100 h is about 36.8%. The long-time photolysis water reaction for 100 h with increasing photocatalytic activity exhibits that the NiCoP in CdS is highly stable in water spitting. We can control and improve the photocatalytic activity by regulating the Ni-Co ratio, which is an advantage relative to single-metal phosphides. The photo-induced charge transfer over NiCoP has been proved by photoluminescence and methyl viologen dication. It is indicated the non-noble-metal cocatalyst NiCoP can substitute noble metal to significantly enhance the PHE activity of photocatalysts. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：用水分裂的光催化氢进化（PHE）是解决能源危机和环境问题的清洁和可持续的方法。已经为这项技术开发了许多努力。在光催化水分裂中，通过转移电子和提供H +减少的活性位点，助催化剂在提高主催化剂的光催化能力方面是枢转的。在这里，我们举行了新的二氧化碳磷酸芹菜甾醇。 Nicop可以显着提高PHE水分裂的能力和耐久性。 PHE速率最大化至8重量％的28412.6μmol/ g / h。％Nicop / Cds光催化剂，这是1重量％的361次Pt / Cds（78.7μmol/ g / h）相同的水分裂条件。 100小时的表观量子产率约为36.8％。随着光催化活性的增加，长时间光解水反应随着升高的光催化活性显示CD中的Nicop在水吐痰中是高度稳定的。通过调节Ni-Co比可以控制和改善光催化活性，这是相对于单金属磷化磷酸的优点。通过光致发光和甲基Viololgen Datepte证明了对Nicop的光诱导的电荷转移。表示非贵金属助催化剂NiCOP可以替代贵金属，显着增强光催化剂的PHE活性。 （c）2017年韩国工程和工程化学学会。 elsevier b.v出版。保留所有权利。

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