A homojunction photocatalyst and a preparation method and application thereof

By constructing a C3N4/C3N5 homojunction photocatalyst modified with cyanide and nitrogen defects, the problem of low efficiency of carbon nitride photocatalysts in synthesizing H2O2 was solved, and efficient, stable and low-cost photocatalytic synthesis of H2O2 was achieved.

CN120205210BActive Publication Date: 2025-10-10ZHIXING TECHNOLOGY (CHANGSHA) CO LTD
1 Cites 0 Cited by

Patent Information

Application Number
CN202510694331.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2025-10-10
Estimated Expiration
2045-05-28

AI Technical Summary

Technical Problem

Existing carbon nitride photocatalysts have low efficiency in the photocatalytic synthesis of H2O2, high carrier recombination rate, few surface active sites, narrow spectral absorption range, and difficulty in effectively adsorbing and activating oxygen molecules, making it difficult to meet practical application needs.

Method used

A C3N4/C3N5 homojunction photocatalyst modified with cyanide and nitrogen defects was constructed through thermal polymerization and mixed grinding. The base was used to react with urea and 3-amino-1,2,4-triazole derivative intermediates to generate cyanide and form nitrogen defects, thereby improving the visible light utilization and photogenerated carrier separation efficiency.

Benefits of technology

The efficiency of photocatalytic synthesis of H2O2 is significantly enhanced, the visible light absorption capacity of the material and the separation efficiency of photogenerated carriers are improved, and efficient, stable and low-cost H2O2 synthesis is achieved.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present application relates to the technical field of catalyst preparation, in particular to a homojunction photocatalyst and a preparation method and application thereof, the present application constructs a C3N4 / C3N5 homojunction photocatalyst which is co-modified by cyanogen and nitrogen defects through simple mixing, grinding and thermal polymerization, and the homojunction photocatalyst exhibits excellent catalytic performance in the aspect of photocatalytic production of H2O2, and is expected to realize the industrialization demand of photocatalytic synthesis of H2O2. The C3N4 / C3N5 homojunction photocatalyst containing nitrogen defects and cyanogen provided by the present application has the advantages of simple preparation method, low price of raw materials, high stability and high efficiency of synthesis of hydrogen peroxide.
Need to check novelty before this filing date? Find Prior Art