Tiange Wei , Yi Zhang , Yanan Liu , Mengxia Ji , Lina Li , Jintao Dong , Jun Di , Jiexiang Xia , Huaming Li
{"title":"室温下机械力将锰锤入 Bi3O4Br，实现高效光催化降解","authors":"Tiange Wei , Yi Zhang , Yanan Liu , Mengxia Ji , Lina Li , Jintao Dong , Jun Di , Jiexiang Xia , Huaming Li","doi":"10.1016/j.catcom.2023.106819","DOIUrl":null,"url":null,"abstract":"<div><p>A rapid mechanical ball milling method at room temperature has been proposed for Mn<sup>2+</sup> doping. The mechanical force generated by the ball milling process was able to hammer Mn atom into the Bi<sub>3</sub>O<sub>4</sub>Br lattice in an efficient and stable manner. Doping with Mn<sup>2+</sup> produces a doping level in the forbidden band. Also, Mn<sup>2+</sup> promptly scavenged the photogenerated holes, reducing the recombination of photogenerated carriers and promoting the production of numerous active species. As a result, Mn<sup>2+</sup> doped Bi<sub>3</sub>O<sub>4</sub>Br exhibited enhanced photodegradation performance towards antibiotic tetracycline, in which the optimal efficiency arrives 81.74%, 1.22 times higher than Bi<sub>3</sub>O<sub>4</sub>Br.</p></div>","PeriodicalId":263,"journal":{"name":"Catalysis Communications","volume":"186 ","pages":"Article 106819"},"PeriodicalIF":3.4000,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1566736723002212/pdfft?md5=2a17782e72fad395d03c3ebf0beffa19&pid=1-s2.0-S1566736723002212-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Mechanical forces hammer Mn into Bi3O4Br under room temperature for efficient photocatalytic degradation\",\"authors\":\"Tiange Wei , Yi Zhang , Yanan Liu , Mengxia Ji , Lina Li , Jintao Dong , Jun Di , Jiexiang Xia , Huaming Li\",\"doi\":\"10.1016/j.catcom.2023.106819\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A rapid mechanical ball milling method at room temperature has been proposed for Mn<sup>2+</sup> doping. The mechanical force generated by the ball milling process was able to hammer Mn atom into the Bi<sub>3</sub>O<sub>4</sub>Br lattice in an efficient and stable manner. Doping with Mn<sup>2+</sup> produces a doping level in the forbidden band. Also, Mn<sup>2+</sup> promptly scavenged the photogenerated holes, reducing the recombination of photogenerated carriers and promoting the production of numerous active species. As a result, Mn<sup>2+</sup> doped Bi<sub>3</sub>O<sub>4</sub>Br exhibited enhanced photodegradation performance towards antibiotic tetracycline, in which the optimal efficiency arrives 81.74%, 1.22 times higher than Bi<sub>3</sub>O<sub>4</sub>Br.</p></div>\",\"PeriodicalId\":263,\"journal\":{\"name\":\"Catalysis Communications\",\"volume\":\"186 \",\"pages\":\"Article 106819\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2023-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1566736723002212/pdfft?md5=2a17782e72fad395d03c3ebf0beffa19&pid=1-s2.0-S1566736723002212-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Communications\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1566736723002212\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1566736723002212","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Mechanical forces hammer Mn into Bi3O4Br under room temperature for efficient photocatalytic degradation
A rapid mechanical ball milling method at room temperature has been proposed for Mn2+ doping. The mechanical force generated by the ball milling process was able to hammer Mn atom into the Bi3O4Br lattice in an efficient and stable manner. Doping with Mn2+ produces a doping level in the forbidden band. Also, Mn2+ promptly scavenged the photogenerated holes, reducing the recombination of photogenerated carriers and promoting the production of numerous active species. As a result, Mn2+ doped Bi3O4Br exhibited enhanced photodegradation performance towards antibiotic tetracycline, in which the optimal efficiency arrives 81.74%, 1.22 times higher than Bi3O4Br.
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