Rational design of supra-aggregation g-C3N4 in heterojunction with tungsten disulfide for enhanced photocatalytic water splitting via visible light

IF 8.6 2区工程技术 Q1 ENERGY & FUELS

Sustainable Materials and Technologies Pub Date : 2025-04-28 DOI:10.1016/j.susmat.2025.e01415

Junsheng Ye , Takudzwa Keith Banda , Ming Liu , Norah A. Albassami , Pengfei Zhang , Zeeshan Ajmal , Saleem Raza , Hamid Ali , Asma M. Alenad , Ehsan Ghasali , Asif Hayat , Sheng-Rong Guo , Yasin Orooji

{"title":"Rational design of supra-aggregation g-C3N4 in heterojunction with tungsten disulfide for enhanced photocatalytic water splitting via visible light","authors":"Junsheng Ye , Takudzwa Keith Banda , Ming Liu , Norah A. Albassami , Pengfei Zhang , Zeeshan Ajmal , Saleem Raza , Hamid Ali , Asma M. Alenad , Ehsan Ghasali , Asif Hayat , Sheng-Rong Guo , Yasin Orooji","doi":"10.1016/j.susmat.2025.e01415","DOIUrl":null,"url":null,"abstract":"<div><div>Graphitic carbon nitride (g-C3N4) has emerged as a promising metal-free photocatalyst, yet its photocatalytic hydrogen evolution (HER) efficiency remains limited due to rapid charge recombination and insufficient visible-light absorption. In this study, a supramolecular preorganization strategy using cyanuric acid-modified urea (UCA) was used, followed by heterojunction formation with tungsten disulfide (WS2) to enhance charge separation and light absorption. The optimized UCA/WS2 composite exhibited a remarkable HER rate of 81.9 μmol·h−1 under visible light (λ = 420 nm), which is 9 times higher than that of pristine g-C3N4 (CN = 8.5 μmol·h−1). This improvement is attributed to the extended conjugation, increased surface area, and reduced charge recombination. This work provides a cost-effective and scalable strategy for designing high-performance g-C3N4-based photocatalysts for sustainable hydrogen production.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"44 ","pages":"Article e01415"},"PeriodicalIF":8.6000,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sustainable Materials and Technologies","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214993725001836","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

Graphitic carbon nitride (g-C₃N₄) has emerged as a promising metal-free photocatalyst, yet its photocatalytic hydrogen evolution (HER) efficiency remains limited due to rapid charge recombination and insufficient visible-light absorption. In this study, a supramolecular preorganization strategy using cyanuric acid-modified urea (UCA) was used, followed by heterojunction formation with tungsten disulfide (WS₂) to enhance charge separation and light absorption. The optimized UCA/WS₂ composite exhibited a remarkable HER rate of 81.9 μmol·h⁻¹ under visible light (λ = 420 nm), which is 9 times higher than that of pristine g-C₃N₄ (CN = 8.5 μmol·h⁻¹). This improvement is attributed to the extended conjugation, increased surface area, and reduced charge recombination. This work provides a cost-effective and scalable strategy for designing high-performance g-C₃N₄-based photocatalysts for sustainable hydrogen production.

Abstract Image

查看原文本刊更多论文

二硫化钨异质结中g-C3N4超聚集物的合理设计增强了可见光光催化水分解

石墨氮化碳（g-C3N4）是一种很有前途的无金属光催化剂，但由于电荷重组速度快、可见光吸收不足，其光催化析氢（HER）效率仍然有限。本研究采用三聚尿酸修饰尿素（UCA）的超分子预组织策略，然后与二硫化钨（WS2）形成异质结，以增强电荷分离和光吸收。优化后的UCA/WS2复合材料在可见光（λ = 420 nm）下的HER率为81.9 μmol·h−1，是原始g-C3N4 （CN = 8.5 μmol·h−1）的9倍。这种改进是由于扩展了共轭，增加了表面积，减少了电荷复合。这项工作为设计高性能的g- c3n4基光催化剂用于可持续制氢提供了一种具有成本效益和可扩展的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment

CiteScore

13.40

自引率

4.20%

发文量

158

审稿时长

45 days

期刊介绍： Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.