Ziyou Xiang, Xiaoqing Zhu, Huimin Yi, Ming Li, Youji Li
{"title":"Electronegativity difference regulates the synergistic effect of dual-metal active sites for improved photodegradation of tetracycline","authors":"Ziyou Xiang, Xiaoqing Zhu, Huimin Yi, Ming Li, Youji Li","doi":"10.1016/j.inoche.2024.113613","DOIUrl":null,"url":null,"abstract":"<div><div>It is extremely necessary to reveal the synergistic effect of dual-active sites via the typical metallic atoms anchored on carbon nitride (CN) carrier, and the controllable synergistic effect is also a novel approach to regulate the neighboring coordination environment. Herein, a series of dual-active site photocatalysts are papered by doping Ag, Fe or Zn atoms due to their different electronegativity. Comprehensive characterizations demonstrate that embedding of Ag/Zn heteroatoms with significant electronegativity difference can regulate the synergistic effect of dual-active sites, which is beneficial for tailoring electronic structures, suppressing the recombination of photogenerated charges, and expanding the absorption range of visible light. Then, the Ag and Zn dual-metal atoms co-doped CN (Ag/Zn-CN) photocatalyst exhibits higher TC degradation rate (90.32 % at 90 min) and photoelectrochemical performance than the Ag/Fe-CN and Zn/Fe-CN, the first-order kinetic constant up to 0.041 min<sup>−1</sup> at t = 0 ∼ 50 min. This work provides a versatile avenue for the rational regulation of the coordination environment of dual-metal active site photocatalysts by embedding different neighboring atoms.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113613"},"PeriodicalIF":4.4000,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1387700324016034","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
It is extremely necessary to reveal the synergistic effect of dual-active sites via the typical metallic atoms anchored on carbon nitride (CN) carrier, and the controllable synergistic effect is also a novel approach to regulate the neighboring coordination environment. Herein, a series of dual-active site photocatalysts are papered by doping Ag, Fe or Zn atoms due to their different electronegativity. Comprehensive characterizations demonstrate that embedding of Ag/Zn heteroatoms with significant electronegativity difference can regulate the synergistic effect of dual-active sites, which is beneficial for tailoring electronic structures, suppressing the recombination of photogenerated charges, and expanding the absorption range of visible light. Then, the Ag and Zn dual-metal atoms co-doped CN (Ag/Zn-CN) photocatalyst exhibits higher TC degradation rate (90.32 % at 90 min) and photoelectrochemical performance than the Ag/Fe-CN and Zn/Fe-CN, the first-order kinetic constant up to 0.041 min−1 at t = 0 ∼ 50 min. This work provides a versatile avenue for the rational regulation of the coordination environment of dual-metal active site photocatalysts by embedding different neighboring atoms.
期刊介绍:
Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.