高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    

肖特基型Zn0.11Co0.42Ni0.47Se/ZnIn2S4化合物光解水析氢性能研究

袁华启1,2，闫爱华2,3，王恒2，黄飞1,2，高埜2，苏自高2，惠博磊3，李楠3   

  1. 1. 中国矿业大学江苏省煤基温室气体减排与资源化利用重点实验室，碳中和研究院 2. 中国矿业大学材料与物理学院 3. 中国矿业大学低碳能源与动力工程学院
  • 收稿日期:2025-08-31 修回日期:2025-10-06 网络首发:2025-10-14 发布日期:2025-10-14
  • 通讯作者: 黄飞 E-mail:huangfei7804@163.com
  • 基金资助:
    徐州市科技计划项目（批准号：KC21025）和国家自然科学基金（批准号：52002399）资助

Photocatalytic Water Splitting into Hydrogen Production Performance of Schottky-Type Zn0.11Co0.42Ni0.47Se/ZnIn2S4 Composites

YUAN Huaqi1,2, YAN Aihua2,3, WANG Heng2, HUANG Fei1,2, GAO Ye2, SU Zigao2, HUI Bolei3, LI Nan3   

  1. 1. Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology

    2. School of Materials and Physics, China University of Mining and Technology 3. School of Low-carbon Energy and Power Engineering，China University of Mining and Technology

  • Received:2025-08-31 Revised:2025-10-06 Online First:2025-10-14 Published:2025-10-14
  • Contact: HUANG Fei E-mail:huangfei7804@163.com
  • Supported by:
    Supported by the Xuzhou Science and Technique Program, China(No. KC21025) and the National Natural Science Foundation of China (No. 52002399)

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摘要： 采用水热/水浴两步法成功构筑肖特基型Zn0.11Co0.42Ni0.47Se/ZnIn2S4（ZCNSe/ZIS）化合物，研究了物相组成、形貌结构、界面结构、能带排列、光热效应等对析氢性能的影响规律，探讨了其析氢机理. 结果表明，负载ZCNSe后，样品表现出良好的光热效应，有效提高了可见光及近红外光吸收能力，肖特基势垒促进了光生电荷有效分离，抑制了光生电子-空穴对复合，结果光解水析氢性能得到有效提高，最佳样品ZCNSe-4/ZIS的析氢速率达到6.89 mmol·g-1·h-1，是纯相ZIS（1.98 mmol·g-1·h-1）的3.48倍；能带结构、光电子动力学及光热吸收表征共同证实了肖特基型ZCNSe/ZIS化合物的光生载流子动力学机制.

关键词: 多主元硒化物, 光热效应, ZnIn2S4, 助催化材料, 光解水

Abstract: Schottky-type Zn0.11Co0.42Ni0.47Se/ZnIn2S4 (ZCNSe/ZIS) composites were constructed by a two-step hydrothermal/water-bath method. The influence of phase composition, morphological structure, interfacial structure, band alignment and photothermal effect on the hydrogen evolution reaction (HER) was investigated in detail. The photocatalytic mechanism was discussed. The results indicate that ZCNSe/ZIS samples exhibit excellent photothermal effect, which effectively improves the visible-light and near-infrared-light absorption. Simultaneously, the Schottky contact facilitates the carrier separation and suppresses the electron-hole recombination. Consequently, the HER performance is enhanced markedly, and the optimal ZCNSe-4/ZIS samples achieve a hydrogen evolution rate of 6.89 mmol·g-1·h-1, which is 3.48 times higher than that of pristine ZIS (1.98·mmol·g-1·h-1). Moreover, band structure analysis, photoelectron dynamics characterization and photothermal tests collectively corroborate the photogenerated carrier transfer mechanism in Schottky-type ZCNSe/ZIS composites.

Key words: Multi-principal selenide, Photothermal effect, ZnIn2S4; Cocatalyst, Photocatalytic water splitting

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