Preparation method of pink ZnS nanomaterial with high catalytic hydrogen production performance under ultraviolet-visible light

Pink ZnS nanomaterials were prepared by hydrothermal synthesis, which solved the problem of insufficient response of ZnS photocatalyst to visible light and achieved efficient hydrogen production under ultraviolet and visible light.

CN118079954BActive Publication Date: 2026-06-12QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)
Filing Date
2024-02-28
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing ZnS photocatalysts can only utilize ultraviolet light, and are mostly white or yellow, unable to effectively respond to visible light, thus limiting their photocatalytic hydrogen production performance.

Method used

Pink ZnS nanomaterials were prepared via hydrothermal synthesis using zinc nitrate hexahydrate and thiourea as raw materials and ethanolamine solvent, thereby enhancing their absorption performance for visible light.

Benefits of technology

The prepared pink ZnS nanomaterials exhibited high catalytic hydrogen production performance under ultraviolet-visible light, with significantly improved hydrogen production capacity and good cycle performance.

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Abstract

The application belongs to the field of photocatalytic materials, and provides a preparation method of pink ZnS nanomaterial with high catalytic hydrogen production performance under ultraviolet visible light, which comprises the following steps: dissolving zinc salt and thiourea in a mixed solvent, uniformly mixing, adding polyvinylpyrrolidone, uniformly mixing, heating to 120 DEG C-180 DEG C to perform hydrothermal reaction, and obtaining a solid powder; washing and drying the solid powder to obtain the pink ZnS nanomaterial. The ZnS nanomaterial is synthesized by using zinc nitrate hexahydrate and thiourea, visible light absorption is enhanced, and carrier separation is improved, and the ZnS exhibits excellent photocatalytic hydrogen evolution activity and cycle stability under ultraviolet visible light irradiation.
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Citation Information

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