Metal single atom-In2S3 nanosheet photocatalyst and its preparation method and photocatalytic CO2 reduction application

By anchoring metal single atomic sites on the surface of In2S3 nanosheets, regulating their electronic structure and promoting exciton dissociation, the problem of low CO2 reduction efficiency of existing photocatalysts is solved, and efficient photocatalytic CO2 reduction is achieved.

CN118681575BActive Publication Date: 2025-02-07CHANGZHOU VOCATIONAL INST OF ENG
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410686870.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-30
Publication Date
2025-02-07
Estimated Expiration
2044-05-30

AI Technical Summary

Technical Problem

The conversion efficiency of existing photocatalysts in the CO2 reduction process is mainly due to the rapid recombination of photogenerated charges and the high chemical stability of linear CO2 molecules. The traditional view is too much about free carriers and ignores the influence of exciton dissociation.

Method used

In2S3 nanosheets anchored by metal single atom sites are used as photocatalysts, and electron-rich metal single atom cocatalysts are anchored on the surface of In2S3 by hydrothermal method to regulate their chemical properties and electronic structures and promote efficient dissociation of excitons.

Benefits of technology

It significantly improves the absorption capacity of visible light, reduces exciton binding energy, and improves the efficiency of photocatalytic CO2 reduction, providing an efficient and promising method for photocatalytic CO2 reduction and other photocatalytic applications.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118681575B_ABST
    Figure CN118681575B_ABST
Patent Text Reader

Abstract

The present invention belongs to the field of preparation and application of photocatalysts, and specifically relates to a metal single atom-In 2 S 3 Nanosheet photocatalyst and preparation method thereof and photocatalytic CO 2 Reduction application. Add In(NO 3 ) 3 4.5H 2 O, Cu(NO 3 ) 2 ·5H 2 O / Fe(NO 3 ) 3 9H 2 O / Ni(NO 3 ) 2 6H 2 O and thioacetamide were stirred evenly in ultrapure water, and then the mixture was transferred to an autoclave. After the reaction was completed, the autoclave was naturally cooled, and the sample was collected, washed with ultrapure water and ethanol, and dried to obtain the metal single atom In 2 S 3 Nanosheet photocatalysts.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Method for preparing metal monatomic anchoring binary heterostructure catalyst

    CN114899435A

  • Strain engineering modified indium sulfide photocatalyst as well as preparation method and application thereof

    CN117448861A