一种Zn-Ni2P / g-C3N4Ⅱ异质结光催化剂及其制备方法和应用

By introducing Zn-Ni2P onto g-C3N4 to form a heterojunction and construct a porous nanostructure, the problems of low activity and high recombination rate of g-C3N4 photocatalysts were solved, achieving efficient photocatalytic hydrogen evolution and improved stability, reducing production costs, and making it suitable for industrial applications.

CN117884165BActive Publication Date: 2026-07-17SHAANXI UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Filing Date
2024-01-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The low specific surface area and high photogenerated electron recombination rate of g-C3N4 photocatalyst limit its photocatalytic activity. Therefore, it is necessary to develop high-performance and low-cost photocatalysts to improve the efficiency and stability of photocatalytic hydrogen evolution.

Method used

Zn-Ni2P/g-C3N4 heterojunction photocatalysts were prepared by hydrothermal method and low-temperature solid-state sintering method. By introducing Zn-Ni2P onto g-C3N4, a heterojunction was formed to accelerate the separation of photogenerated carriers. Furthermore, the porous nanostructure was used to increase the reactive sites and reduce the recombination of photogenerated carriers.

Benefits of technology

It improves the efficiency of photocatalytic hydrogen evolution, enhances the stability of the catalyst, and reduces the production cost, making the preparation process simple, easy to control, and suitable for industrial production.

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Abstract

本发明公开了一种Zn‑Ni2P / g‑C3N4Ⅱ异质结光催化剂及其制备方法和应用,其制备方法包括:制备多孔g‑C3N4纳米片粉体B;按比例向粉体B的水分散液中加入乙酸锌、六水合氯化镍、十二烷基六甲基氯化铵、尿素和聚吡咯,得到混合溶液C并进行溶剂热反应制备前驱体D;取前驱体D和次亚磷酸钠在氩氢混合气保护下煅烧得到Zn‑Ni2P / g‑C3N4光催化剂,形成有效的异质结,具有良好的稳定性和优异的光催化析氢性能,制备工艺简单、条件易控制,生产成本较低。
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