Zhi Li , Hao Lv , Kangbo Tong , Yupeng He , Chunyang Zhai , Yang Yun , Mingshan Zhu
{"title":"调节氮化碳的前体，促进 H2O2 光合作用的局部电子脱定位，以清除土霉素及其抗生素耐药基因","authors":"Zhi Li , Hao Lv , Kangbo Tong , Yupeng He , Chunyang Zhai , Yang Yun , Mingshan Zhu","doi":"10.1016/j.apcatb.2024.123690","DOIUrl":null,"url":null,"abstract":"<div><p>Artificial H<sub>2</sub>O<sub>2</sub> photosynthesis, one of the brightest strategies toward H<sub>2</sub>O<sub>2</sub><span> production, is always restricted by the intrinsically charge migration behaviors and redox kinetics of photocatalysts. Herein, different precursors of carbon nitride (C</span><sub>3</sub>N<sub>4</sub><span>) with urea and melamine (Mel) are synthesized, where C</span><sub>3</sub>N<sub>4</sub>-Urea has more delocalized electrons due to its smaller size and thickness, compared with C<sub>3</sub>N<sub>4</sub>-Mel. Under simulated sunlight irradiation, these abundant delocalized electrons rapid reduce oxygen into H<sub>2</sub>O<sub>2</sub>, with the rate of 4.9 mmol g<sup>−1</sup> h<sup>−1</sup> and 2e<sup>-</sup> transfer selectivity of 98%. In addition, a self-photo-Fenton reaction system is constructed to remove oxytetracycline (OTC) pollutants and its antibiotic resistant genes (ARG) in water, with the degradation rate of 3.75 min<sup>−1</sup> for OTC and 0.08 min<sup>−1</sup> for <em>tetC</em> ARG. The current approach by modulating the precursors of C<sub>3</sub>N<sub>4</sub> to boost the local electron delocalization offers a promising route for improving the efficiency of artificial H<sub>2</sub>O<sub>2</sub> photosynthesis.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"345 ","pages":"Article 123690"},"PeriodicalIF":20.2000,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modulating the precursors of carbon nitride to boost local electron delocalization for H2O2 photosynthesis to remove oxytetracycline and its antibiotic resistant genes\",\"authors\":\"Zhi Li , Hao Lv , Kangbo Tong , Yupeng He , Chunyang Zhai , Yang Yun , Mingshan Zhu\",\"doi\":\"10.1016/j.apcatb.2024.123690\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Artificial H<sub>2</sub>O<sub>2</sub> photosynthesis, one of the brightest strategies toward H<sub>2</sub>O<sub>2</sub><span> production, is always restricted by the intrinsically charge migration behaviors and redox kinetics of photocatalysts. Herein, different precursors of carbon nitride (C</span><sub>3</sub>N<sub>4</sub><span>) with urea and melamine (Mel) are synthesized, where C</span><sub>3</sub>N<sub>4</sub>-Urea has more delocalized electrons due to its smaller size and thickness, compared with C<sub>3</sub>N<sub>4</sub>-Mel. Under simulated sunlight irradiation, these abundant delocalized electrons rapid reduce oxygen into H<sub>2</sub>O<sub>2</sub>, with the rate of 4.9 mmol g<sup>−1</sup> h<sup>−1</sup> and 2e<sup>-</sup> transfer selectivity of 98%. In addition, a self-photo-Fenton reaction system is constructed to remove oxytetracycline (OTC) pollutants and its antibiotic resistant genes (ARG) in water, with the degradation rate of 3.75 min<sup>−1</sup> for OTC and 0.08 min<sup>−1</sup> for <em>tetC</em> ARG. The current approach by modulating the precursors of C<sub>3</sub>N<sub>4</sub> to boost the local electron delocalization offers a promising route for improving the efficiency of artificial H<sub>2</sub>O<sub>2</sub> photosynthesis.</p></div>\",\"PeriodicalId\":244,\"journal\":{\"name\":\"Applied Catalysis B: Environmental\",\"volume\":\"345 \",\"pages\":\"Article 123690\"},\"PeriodicalIF\":20.2000,\"publicationDate\":\"2024-01-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Catalysis B: Environmental\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0926337324000018\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis B: Environmental","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926337324000018","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Modulating the precursors of carbon nitride to boost local electron delocalization for H2O2 photosynthesis to remove oxytetracycline and its antibiotic resistant genes
Artificial H2O2 photosynthesis, one of the brightest strategies toward H2O2 production, is always restricted by the intrinsically charge migration behaviors and redox kinetics of photocatalysts. Herein, different precursors of carbon nitride (C3N4) with urea and melamine (Mel) are synthesized, where C3N4-Urea has more delocalized electrons due to its smaller size and thickness, compared with C3N4-Mel. Under simulated sunlight irradiation, these abundant delocalized electrons rapid reduce oxygen into H2O2, with the rate of 4.9 mmol g−1 h−1 and 2e- transfer selectivity of 98%. In addition, a self-photo-Fenton reaction system is constructed to remove oxytetracycline (OTC) pollutants and its antibiotic resistant genes (ARG) in water, with the degradation rate of 3.75 min−1 for OTC and 0.08 min−1 for tetC ARG. The current approach by modulating the precursors of C3N4 to boost the local electron delocalization offers a promising route for improving the efficiency of artificial H2O2 photosynthesis.
期刊介绍：
Applied Catalysis B: Environment and Energy (formerly Applied Catalysis B: Environmental) is a journal that focuses on the transition towards cleaner and more sustainable energy sources. The journal's publications cover a wide range of topics, including:
1.Catalytic elimination of environmental pollutants such as nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated and other organic compounds, and soot emitted from stationary or mobile sources.
2.Basic understanding of catalysts used in environmental pollution abatement, particularly in industrial processes.
3.All aspects of preparation, characterization, activation, deactivation, and regeneration of novel and commercially applicable environmental catalysts.
4.New catalytic routes and processes for the production of clean energy, such as hydrogen generation via catalytic fuel processing, and new catalysts and electrocatalysts for fuel cells.
5.Catalytic reactions that convert wastes into useful products.
6.Clean manufacturing techniques that replace toxic chemicals with environmentally friendly catalysts.
7.Scientific aspects of photocatalytic processes and a basic understanding of photocatalysts as applied to environmental problems.
8.New catalytic combustion technologies and catalysts.
9.New catalytic non-enzymatic transformations of biomass components.
The journal is abstracted and indexed in API Abstracts, Research Alert, Chemical Abstracts, Web of Science, Theoretical Chemical Engineering Abstracts, Engineering, Technology & Applied Sciences, and others.
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