Fabrication of micro/nano wettability MoS2 hydrogen evolution electrocatalyst based on femtosecond laser

Wang, Zekun; Song, Lin; Tao, Haiyan; He, Yaowen; Yang, Ying; Wang, Tianqi; Yu, Hui; Lin, Jingquan; Dong, Xiangting

doi:10.1016/j.ijhydene.2023.08.160

Cited by 1 publication

(1 citation statement)

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“…The key to further enhancing the photocatalytic performance of ZnO lies in leveraging the advantages of a femtosecond laser in three-dimensional structure design to coordinate the morphology design of target photocatalytic materials. As a conventional chemical synthesis method of nanomaterials, the hydrothermal method can not only synthesize various types of high-purity nanostructured crystals with catalytic properties on metal/nonmetal substrates by selecting appropriate precursors 34 but also by the control of hydrothermal conditions achieves the growth of nanomaterials with diverse structures. During the hydrothermal reaction process, the incorporation of self-sourced metal substrates not only directly provides raw materials for the growth of catalytically active substances but also effectively enhances the bonding strength between the nanostructure and the surface interface.…”

Section: ■ Introductionmentioning

confidence: 99%

Femtosecond Laser Combined with Hydrothermal Method to Construct Three-Dimensional Spatially Distributed Wurtzite ZnO Micro/Nanostructures to Enhance Photocatalytic Properties

He,

Yang,

Wang

et al. 2024

Langmuir

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Conventional approaches employing nanopowder particles or deposition photocatalytic nanofilm materials encounter challenges such as performance instability, susceptibility to detachment, and recycling complications in practical photocatalytic scenarios. In this study, a novel fabrication strategy is proposed that uses femtosecond laser direct writing of self-sourced metal to prepare a self-supporting microstructure substrate and combines the hydrothermal method to construct a three-dimensional spatially distributed metal oxide micro/nanostructure. The obtained wurtzite ZnO micro/nanostructure has excellent wetting properties while obtaining a larger specific surface area and can achieve effective adsorption of methyl orange molecules. Moreover, the tight integration of ZnO with the surface interface of the self-sourced metal microstructure substrate will facilitate efficient charge transfer. Simultaneously, it improves the efficiency of light utilization (absorption) and the number of active sites in the photocatalytic process, ultimately leading to excellent photodegradation stability. This result provides an innovative technology solution for achieving efficient semiconductor surface-interface photocatalytic performance and stability.

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Section: ■ Introductionmentioning

confidence: 99%