Research progress on modified carbon nitride for photocatalytic CO<sub>2</sub> reduction

LU Xinyi; LIU Zhe; XIN Wen; LI Jinying; YANG Chunwei

doi:10.12434/j.issn.2097-2547.20250250

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Research progress on modified carbon nitride for photocatalytic CO₂ reduction

更新时间：2026-04-23

- Research progress on modified carbon nitride for photocatalytic CO₂ reduction
- Vol. 51, Issue 4, Pages: 11-21(2026)
- 作者机构：
  
  1.吉林师范大学吉林省新污染物识别与控制重点实验室，吉林四平 136000
  2.吉林师范大学吉林省高校环境材料与污染控制重点实验室，吉林四平 136000
  3.吉林师范大学物理学院，吉林四平 136000
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250250
  CLC： TK91;O643.32
- Received：06 June 2025，
  
  Revised：2025-07-13，
  
  Published：25 April 2026
- 稿件说明：
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路心怡,刘喆,辛闻等.改性氮化碳用于光催化CO₂还原的研究进展[J].低碳化学与化工,2026,51(4):11-21.

LU Xinyi,LIU Zhe,XIN Wen,et al.Research progress on modified carbon nitride for photocatalytic CO₂ reduction[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(4):11-21.
路心怡,刘喆,辛闻等.改性氮化碳用于光催化CO₂还原的研究进展[J].低碳化学与化工,2026,51(4):11-21. DOI： 10.12434/j.issn.2097-2547.20250250.

LU Xinyi,LIU Zhe,XIN Wen,et al.Research progress on modified carbon nitride for photocatalytic CO₂ reduction[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(4):11-21. DOI： 10.12434/j.issn.2097-2547.20250250.

摘要

利用太阳能驱动氮化碳（g-C

）光催化还原CO

生成燃料和高附加值化学品的研究备受关注，已成为助力实现“碳中和”目标的可行策略之一。但该技术存在光生载流子复合率高、CO

活化难等技术瓶颈。从g-C

光催化CO

还原机理出发，探究g-C

的制备与改性策略或成为该技术突破瓶颈的关键。目前可行且具有应用推广前景的改性策略主要包括以下3类：元素掺杂，可调控催化剂能带结构，拓宽光能利用范围；异质结构建，强化光生载流子转移，提高光生电子利用率；微纳尺度形貌设计，增大比表面积和活性位点数量，提升CO

活化和反应效率。通过调研分析和综合评估发现，催化剂多尺度协同改性、产物选择性精准调控及材料稳定性增强等策略的协同优化可有效提升g-C

基光催化剂的催化性能。

Abstract

The research on solar-driven photocatalytic CO

reduction to fuels and high-value-added chemicals over graphitic carbon nitride (g-C

) has attracted significant attention

emerging as a feasible strategy to facilitate achievement of the “carbon neutrality”goals. However

this technology still faces technical challenges

such as rapid recombination of photogenerated charge carriers and difficulties in CO

activation. Understanding the mechanistic fundamentals of photocatalytic CO

over g-C

reduction is essential

and exploring synthesis and modification strategies for g-C

may hold the key to addressing these limitations. Currently

practical and promising modification strategies mainly include the following three categories: Elemental doping to tailor the electronic band structure of the catalyst and extend the light absorption range; Construction of heterojunctions to facilitate the separation and migration of photogenerated carriers and enhance the utilization efficiency of electrons; Micro/nano-structural morphology engineering to increase the specific surface area and expose more active sites

thereby improving CO

adsorption/activation and reaction kinetics. Based on literature survey and comprehensive anal

ysis

it is found that the synergistic multi-scale modification of catalysts

precise regulation of product distribution

and enhancement of material stability collectively contribute to a more significant improvement in the catalytic performance of g-C

-based photocatalysts.

关键词

Keywords

references

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Research progress on modified carbon nitride for photocatalytic CO2 reduction

DOI：10.12434/j.issn.2097-2547.20250250

摘要

Abstract

关键词

Keywords

references

Research progress on modified carbon nitride for photocatalytic CO₂ reduction