Formation of Lewis acid-base pairs between carboxyl grafted ZnxCd1-xS and imine COF enhance hydrogen production under visible light

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL

Applied Catalysis A: General Pub Date : 2025-01-13 DOI:10.1016/j.apcata.2025.120118

Jingzhi Wang, Mei Li, Nini Zhao, Zhiliang Jin

{"title":"Formation of Lewis acid-base pairs between carboxyl grafted ZnxCd1-xS and imine COF enhance hydrogen production under visible light","authors":"Jingzhi Wang, Mei Li, Nini Zhao, Zhiliang Jin","doi":"10.1016/j.apcata.2025.120118","DOIUrl":null,"url":null,"abstract":"<div><div>Directed charge transfer is an effective way to improve charge utilization efficiency and promote photocatalytic hydrogen evolution reactions. This article reports the formation of a Lewis acid-base catalytic system using carboxyl-modified ZnxCd1-xS and imine COF (2,4,6-tris (4-aminophenyl) triazine and tris (4-formylphenyl) amine under Schiff base to form imine COF). Under visible light irradiation, the optimum hydrogen production activity of ZnxCd1-xS/COF (3:20 (mass ratio)) can reach 6.65 mmol·g−1·h−1. It is twice as that of high as pure ZnxCd1-xS and exhibits good photocatalytic hydrogen evolution stability. In the presence of Lewis acid-base pairs, directional charge transfer is successfully achieved, thereby increasing charge utilization and enhancing photocatalytic hydrogen evolution. In addition, 2D sheet-like COFs have played a good dispersing role for ZnxCd1-xS, reducing the problem of low active sites caused by aggregation of ZnxCd1-xS, and also contributing to the improvement of photocatalytic activity. This work paves the way for the construction of COFs and the implementation of charge guidance using Lewis acid-base pairs.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"693 ","pages":"Article 120118"},"PeriodicalIF":4.7000,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis A: General","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926860X25000195","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Directed charge transfer is an effective way to improve charge utilization efficiency and promote photocatalytic hydrogen evolution reactions. This article reports the formation of a Lewis acid-base catalytic system using carboxyl-modified Zn_xCd_1-xS and imine COF (2,4,6-tris (4-aminophenyl) triazine and tris (4-formylphenyl) amine under Schiff base to form imine COF). Under visible light irradiation, the optimum hydrogen production activity of Zn_xCd_1-xS/COF (3:20 (mass ratio)) can reach 6.65 mmol·g⁻¹·h⁻¹. It is twice as that of high as pure Zn_xCd_1-xS and exhibits good photocatalytic hydrogen evolution stability. In the presence of Lewis acid-base pairs, directional charge transfer is successfully achieved, thereby increasing charge utilization and enhancing photocatalytic hydrogen evolution. In addition, 2D sheet-like COFs have played a good dispersing role for Zn_xCd_1-xS, reducing the problem of low active sites caused by aggregation of Zn_xCd_1-xS, and also contributing to the improvement of photocatalytic activity. This work paves the way for the construction of COFs and the implementation of charge guidance using Lewis acid-base pairs.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Catalysis A: General 化学-环境科学

CiteScore

9.00

自引率

5.50%

发文量

415

审稿时长

24 days

期刊介绍： Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications. Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.