文章信息/Info

Title:

The Modification of Graphite Carbon Nitride and Its Applications in Photocatalysis

文章編號:

1674-3962(2024)07-0565-14

作者:

李俊; 馬丹丹; 鄒雅珺; 石建穩

西安交通大學電氣工程學院 電工材料電氣絕緣全國重點實驗室 新型儲能與能量轉換納米材料研究中心，陜西 西安 710049

Author(s):

LI Jun;  MA Dandan;  ZOU Yajun;  SHI Jianwen

Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China

關鍵詞:

g-C3N4; 改性方法; 異質結; 同質結; 光催化應用

Keywords:

g-C3N4;  modified strategies;  heterojunction;  homojunction;  photocatalytic applications

分類號:

O643.36; O644.1;X51

DOI:

10.7502/j.issn.1674-3962.202310019

文獻標志碼:

A

摘要:

石墨相氮化碳（graphitic carbon nitride，g-C3N4）因其獨特的電子結構、可見光響應能力以及優異的化學穩定性，被認為是新一代最有發展前景的光催化材料之一。但原始的塊體g-C3N4存在比表面積小、電子傳導率低、可見光吸收能力有限、光生載流子復合速率快等缺點，極大地限制了它在光催化領域的大規模應用。為了提高g-C3N4的光催化性能并拓展其應用領域，科研人員進行了大量的研究工作并取得了重大進展。針對g-C3N4在光催化領域的研究現狀，從分子結構調控、微觀結構優化、助催化劑負載、半導體異質結和同質結的構建等方面概述了基于g-C3N4材料的改性方法，介紹了g-C3N4基材料在光催化分解水產氫、污染物降解、CO2還原、有機合成4個領域的應用，論述了g-C3N4基材料在光催化領域面臨的機遇和挑戰，并展望了其應用前景。

Abstract:

Graphitic carbon nitride (g-C3N4) is one of the most promising photocatalytic materials due to its unique electronic structure, visible light response, and excellent chemical stability. Whereas, the practical applications of pristine g-C3N4 in photocatalysis are still facing with huge challenges, such as poor specific surface area，low electronic conductivity, insufficient visible light absorption, and fast recombination of photoinduced charge carriers. Lots of research works have been carried out to improve the photocatalytic performance and extend the applications of g-C3N4, and many exciting progresses have been gained. In this work, we summarized the research status of g-C3N4 in the field of photocatalysis. The modified strategies based on g�睠3N4 were discussed, including molecular structure engineering, morphology control, co-catalyst deposition, heterostructure and homostructure construction. Then, the multifunctional applications of g-C3N4 based materials in photocatalysis including H2 evolution, pollutant removal, CO2 reduction and organic synthesis were reviewed, and the opportunities and challenges for the development of high-performance g-C3N4 based materials were prospected.