Yi Ren, Jiaxuan Yang, Hongxia Li, Xiaohui Niu, Xiaoyu Liu, Li Chen, Haiyan Fan, Kunjie Wang
{"title":"富氧空位s型异质结BiOBr/h-MoO3光催化降解四环素的研究","authors":"Yi Ren, Jiaxuan Yang, Hongxia Li, Xiaohui Niu, Xiaoyu Liu, Li Chen, Haiyan Fan, Kunjie Wang","doi":"10.1002/aoc.70356","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>A BiOBr/h-MoO<sub>3</sub> heterostructure photocatalyst with oxygen vacancy (OV) modulation was synthesized via solvothermal in situ precipitation, exhibiting enhanced visible-light-driven tetracycline (TC) degradation performance. The composite demonstrated 1.5- and 4-fold higher TC degradation rates compared to pristine BiOBr and h-MoO<sub>3</sub>, respectively. Structural characterization via XRD, XPS, and FTIR confirmed the successful synthesis of the composite with controlled OV concentration and interfacial bonding characteristics. Photoluminescence (PL) and electron spin resonance (ESR) analyses revealed that the BiOBr/h-MoO<sub>3</sub> heterojunction achieved optimal reactive oxygen species (ROS) production and minimized electron–hole recombination. Under optimized conditions (catalyst dosage: 10 mg L<sup>−1</sup>, TC concentration: 10 mg L<sup>−1</sup>, pH 10), the system attained 84% TC degradation within 60 min while maintaining 80% efficiency after five operational cycles. Mechanistic studies identified hydroxyl radicals (<span></span>OH) and photogenerated holes (h<sup>+</sup>) as dominant active species, with OVs critically enhancing interfacial charge transfer efficiency. This work provides a viable strategy for constructing OV-engineered heterojunction photocatalysts for antibiotic wastewater treatment.</p>\n </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 9","pages":""},"PeriodicalIF":3.7000,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Efficient Photocatalytic Degradation of Tetracycline by S-Type Heterojunction BiOBr/h-MoO3 With Oxygen-Rich Vacancies Under Visible Light\",\"authors\":\"Yi Ren, Jiaxuan Yang, Hongxia Li, Xiaohui Niu, Xiaoyu Liu, Li Chen, Haiyan Fan, Kunjie Wang\",\"doi\":\"10.1002/aoc.70356\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>A BiOBr/h-MoO<sub>3</sub> heterostructure photocatalyst with oxygen vacancy (OV) modulation was synthesized via solvothermal in situ precipitation, exhibiting enhanced visible-light-driven tetracycline (TC) degradation performance. The composite demonstrated 1.5- and 4-fold higher TC degradation rates compared to pristine BiOBr and h-MoO<sub>3</sub>, respectively. Structural characterization via XRD, XPS, and FTIR confirmed the successful synthesis of the composite with controlled OV concentration and interfacial bonding characteristics. Photoluminescence (PL) and electron spin resonance (ESR) analyses revealed that the BiOBr/h-MoO<sub>3</sub> heterojunction achieved optimal reactive oxygen species (ROS) production and minimized electron–hole recombination. Under optimized conditions (catalyst dosage: 10 mg L<sup>−1</sup>, TC concentration: 10 mg L<sup>−1</sup>, pH 10), the system attained 84% TC degradation within 60 min while maintaining 80% efficiency after five operational cycles. Mechanistic studies identified hydroxyl radicals (<span></span>OH) and photogenerated holes (h<sup>+</sup>) as dominant active species, with OVs critically enhancing interfacial charge transfer efficiency. This work provides a viable strategy for constructing OV-engineered heterojunction photocatalysts for antibiotic wastewater treatment.</p>\\n </div>\",\"PeriodicalId\":8344,\"journal\":{\"name\":\"Applied Organometallic Chemistry\",\"volume\":\"39 9\",\"pages\":\"\"},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2025-08-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Organometallic Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/aoc.70356\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Organometallic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/aoc.70356","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Efficient Photocatalytic Degradation of Tetracycline by S-Type Heterojunction BiOBr/h-MoO3 With Oxygen-Rich Vacancies Under Visible Light
A BiOBr/h-MoO3 heterostructure photocatalyst with oxygen vacancy (OV) modulation was synthesized via solvothermal in situ precipitation, exhibiting enhanced visible-light-driven tetracycline (TC) degradation performance. The composite demonstrated 1.5- and 4-fold higher TC degradation rates compared to pristine BiOBr and h-MoO3, respectively. Structural characterization via XRD, XPS, and FTIR confirmed the successful synthesis of the composite with controlled OV concentration and interfacial bonding characteristics. Photoluminescence (PL) and electron spin resonance (ESR) analyses revealed that the BiOBr/h-MoO3 heterojunction achieved optimal reactive oxygen species (ROS) production and minimized electron–hole recombination. Under optimized conditions (catalyst dosage: 10 mg L−1, TC concentration: 10 mg L−1, pH 10), the system attained 84% TC degradation within 60 min while maintaining 80% efficiency after five operational cycles. Mechanistic studies identified hydroxyl radicals (OH) and photogenerated holes (h+) as dominant active species, with OVs critically enhancing interfacial charge transfer efficiency. This work provides a viable strategy for constructing OV-engineered heterojunction photocatalysts for antibiotic wastewater treatment.
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All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.
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