光催化
异质结
纳米复合材料
材料科学
硫化物
硫化镍
纳米颗粒
可见光谱
纳米技术
复合数
化学工程
光化学
光电子学
催化作用
硫化镉
化学
复合材料
冶金
有机化学
工程类
作者
Xiangyu Liu,Chuanbiao Bie,Bowen He,Bicheng Zhu,Liuyang Zhang,Bei Cheng
标识
DOI:10.1016/j.apsusc.2021.149622
摘要
Photocatalytic H2 production under visible light irradiation is of paramount importance in energy transformation and ecotope conservation. Herein, a heterojunction composed of zero-dimension (0D) nickel sulfide (NiS) nanoparticle and cadmium sulfide (CdS) flower is tactfully constructed. Particularly, the obtained nanocomposite, whose molar ratio of NiS is 25%, yields a remarkable photocatalytic performance. Its H2-production rate reaches 18.1 mmol h−1 g−1, which is approximately 69.6 folds higher than that of pristine CdS. The excellent photocatalytic H2 evolution reaction (HER) activity can be mainly attributed to the intimate contact and efficient separation of photoinduced carriers across the interface. This work also presents a new direction in understanding the performance improvement in composite photocatalysts.
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