Yuze Wu, Jingchao Liu, Jinxia Zhao, Chunhong Jin, Hailong Ren, Yilin Yin and Zenghe Li
{"title":"用于光催化降解双氯芬酸的富氧空位 BiO2-x/COF 异质结","authors":"Yuze Wu, Jingchao Liu, Jinxia Zhao, Chunhong Jin, Hailong Ren, Yilin Yin and Zenghe Li","doi":"10.1039/D4NR00608A","DOIUrl":null,"url":null,"abstract":"<p >A BiO<small><sub>2−<em>x</em></sub></small>/COF composite was successfully synthesized by simple mechanical ball milling. Compared to pure BiO<small><sub>2−<em>x</em></sub></small> and COFs, the BiO<small><sub>2−<em>x</em></sub></small>/COF composite (1 : 9) showed superior photocatalytic capability. Under visible light irradiation for 90 min, the photocatalytic degradation rate of DCF reached 97%. In addition, the characterization results showed that the formation of heterojunctions and the increase in oxygen vacancy concentration were the reasons for the enhancement of the photocatalytic activity. It is confirmed by free radical capture experiments that ˙O<small><sub>2</sub></small><small><sup>−</sup></small> and h<small><sup>+</sup></small> are the main reactive substances in the photocatalytic process. The photocatalytic degradation mechanism of the composite and the photocatalytic degradation pathway of diclofenac were deduced.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3000,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An oxygen vacancy-rich BiO2−x/COF heterojunction for photocatalytic degradation of diclofenac†\",\"authors\":\"Yuze Wu, Jingchao Liu, Jinxia Zhao, Chunhong Jin, Hailong Ren, Yilin Yin and Zenghe Li\",\"doi\":\"10.1039/D4NR00608A\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >A BiO<small><sub>2−<em>x</em></sub></small>/COF composite was successfully synthesized by simple mechanical ball milling. Compared to pure BiO<small><sub>2−<em>x</em></sub></small> and COFs, the BiO<small><sub>2−<em>x</em></sub></small>/COF composite (1 : 9) showed superior photocatalytic capability. Under visible light irradiation for 90 min, the photocatalytic degradation rate of DCF reached 97%. In addition, the characterization results showed that the formation of heterojunctions and the increase in oxygen vacancy concentration were the reasons for the enhancement of the photocatalytic activity. It is confirmed by free radical capture experiments that ˙O<small><sub>2</sub></small><small><sup>−</sup></small> and h<small><sup>+</sup></small> are the main reactive substances in the photocatalytic process. The photocatalytic degradation mechanism of the composite and the photocatalytic degradation pathway of diclofenac were deduced.</p>\",\"PeriodicalId\":5,\"journal\":{\"name\":\"ACS Applied Materials & Interfaces\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.3000,\"publicationDate\":\"2024-04-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Materials & Interfaces\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/nr/d4nr00608a\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Materials & Interfaces","FirstCategoryId":"88","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/nr/d4nr00608a","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
An oxygen vacancy-rich BiO2−x/COF heterojunction for photocatalytic degradation of diclofenac†
A BiO2−x/COF composite was successfully synthesized by simple mechanical ball milling. Compared to pure BiO2−x and COFs, the BiO2−x/COF composite (1 : 9) showed superior photocatalytic capability. Under visible light irradiation for 90 min, the photocatalytic degradation rate of DCF reached 97%. In addition, the characterization results showed that the formation of heterojunctions and the increase in oxygen vacancy concentration were the reasons for the enhancement of the photocatalytic activity. It is confirmed by free radical capture experiments that ˙O2− and h+ are the main reactive substances in the photocatalytic process. The photocatalytic degradation mechanism of the composite and the photocatalytic degradation pathway of diclofenac were deduced.
期刊介绍：
ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.
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