局部疏水性增强了NiCo2O4/CdS光催化剂上的析氢作用

IF 4.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

Frontiers of Chemical Science and Engineering Pub Date : 2025-09-02 DOI:10.1007/s11705-025-2609-3

Xuan Xiang, Yuyin Mao, Minghui Zhang, Hanxiao Wang, Xiangdong Xue, Jian Tian, Jian Liu

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引用次数: 0

摘要

解决电子和气体传递动力学是关键的光催化析氢。在这项工作中，亲水性NiCo2O4/CdS异质结与疏水性SiO2结合以提高光催化析氢性能。亲/疏水NiCo2O4/CdS/SiO2光催化剂产氢速率为11.78 mmol·g-1·h-1，优于NiCo2O4/CdS异质结的8.15 mmol·g-1·h-1。异质结显著提高了光生电荷-载流子分离效率，而疏水性SiO2通过减轻表面气泡聚集促进气体演化。本研究为开发实用的析氢光催化剂提供了一条便捷的途径。

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Local hydrophobicity enhanced hydrogen evolution over NiCo2O4/CdS photocatalyst

Addressing electron and gas transfer dynamics is pivotal for photocatalytic hydrogen evolution. In this work, a hydrophilic NiCo₂O₄/CdS heterojunction was incorporated with hydrophobic SiO₂ to enhance photocatalytic hydrogen evolution performance. The hydrophilic/hydrophobic NiCo₂O₄/CdS/SiO₂ photocatalyst exhibited a hydrogen production rate of 11.78 mmol·g^-1·h^-1, outperforming the 8.15 mmol·g^-1·h^-1 of NiCo₂O₄/CdS heterojunction. The heterojunction significantly enhances photogenerated charge-carrier separation efficiency, while the hydrophobic SiO₂ facilitates gas evolution by mitigating surface bubble aggregation. The work here provides a facile route for developing photocatalysts toward practical hydrogen evolution.

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来源期刊

Frontiers of Chemical Science and Engineering ENGINEERING, CHEMICAL-

CiteScore

7.60

自引率

6.70%

发文量

868

审稿时长

1 months

期刊介绍： Frontiers of Chemical Science and Engineering presents the latest developments in chemical science and engineering, emphasizing emerging and multidisciplinary fields and international trends in research and development. The journal promotes communication and exchange between scientists all over the world. The contents include original reviews, research papers and short communications. Coverage includes catalysis and reaction engineering, clean energy, functional material, nanotechnology and nanoscience, biomaterials and biotechnology, particle technology and multiphase processing, separation science and technology, sustainable technologies and green processing.