Xiaoliang Yang, Hengcan Dai, Kangtao Yuan, Hao Tang, Zirui Luo
{"title":"改性TiO2催化剂光催化降解盐酸四环素","authors":"Xiaoliang Yang, Hengcan Dai, Kangtao Yuan, Hao Tang, Zirui Luo","doi":"10.1007/s11270-025-08569-9","DOIUrl":null,"url":null,"abstract":"<div><p>The results demonstrated that the Ag₂S/TiO₂ composite catalyst with a molar ratio of 1:6 exhibited superior particle dispersion and uniformity, thereby enhancing the migration efficiency of photogenerated carriers. XRD analysis revealed that the Ag₂S and TiO₂ catalysts exhibited a monoclinic and anatase crystal structure, respectively, with no additional impurity peaks detected. Furthermore, the visible light absorption of the catalysts with different molar ratios underwent a significant redshift, which improved their visible light response capability. Under optimal conditions, where the molar ratio was 1:6, the catalyst dosage was 1.0 g/L, and the pH was 7, the reaction was conducted under visible light for 210 min. The removal efficiency of TCH reached 90.72% for an initial concentration of 30 mg/L. Notably, under the same optimal conditions, the removal efficiency of TCH remained at 77.00% even after five reuse cycles, indicating excellent photocatalytic stability. The degradation of TCH primarily occurred through deamination, demethylation, and hydrogenation pathways.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 14","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photocatalytic Degradation of Tetracycline Hydrochloride by Modified TiO2 Catalyst\",\"authors\":\"Xiaoliang Yang, Hengcan Dai, Kangtao Yuan, Hao Tang, Zirui Luo\",\"doi\":\"10.1007/s11270-025-08569-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The results demonstrated that the Ag₂S/TiO₂ composite catalyst with a molar ratio of 1:6 exhibited superior particle dispersion and uniformity, thereby enhancing the migration efficiency of photogenerated carriers. XRD analysis revealed that the Ag₂S and TiO₂ catalysts exhibited a monoclinic and anatase crystal structure, respectively, with no additional impurity peaks detected. Furthermore, the visible light absorption of the catalysts with different molar ratios underwent a significant redshift, which improved their visible light response capability. Under optimal conditions, where the molar ratio was 1:6, the catalyst dosage was 1.0 g/L, and the pH was 7, the reaction was conducted under visible light for 210 min. The removal efficiency of TCH reached 90.72% for an initial concentration of 30 mg/L. Notably, under the same optimal conditions, the removal efficiency of TCH remained at 77.00% even after five reuse cycles, indicating excellent photocatalytic stability. The degradation of TCH primarily occurred through deamination, demethylation, and hydrogenation pathways.</p></div>\",\"PeriodicalId\":808,\"journal\":{\"name\":\"Water, Air, & Soil Pollution\",\"volume\":\"236 14\",\"pages\":\"\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-10-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Water, Air, & Soil Pollution\",\"FirstCategoryId\":\"6\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11270-025-08569-9\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water, Air, & Soil Pollution","FirstCategoryId":"6","ListUrlMain":"https://link.springer.com/article/10.1007/s11270-025-08569-9","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Photocatalytic Degradation of Tetracycline Hydrochloride by Modified TiO2 Catalyst
The results demonstrated that the Ag₂S/TiO₂ composite catalyst with a molar ratio of 1:6 exhibited superior particle dispersion and uniformity, thereby enhancing the migration efficiency of photogenerated carriers. XRD analysis revealed that the Ag₂S and TiO₂ catalysts exhibited a monoclinic and anatase crystal structure, respectively, with no additional impurity peaks detected. Furthermore, the visible light absorption of the catalysts with different molar ratios underwent a significant redshift, which improved their visible light response capability. Under optimal conditions, where the molar ratio was 1:6, the catalyst dosage was 1.0 g/L, and the pH was 7, the reaction was conducted under visible light for 210 min. The removal efficiency of TCH reached 90.72% for an initial concentration of 30 mg/L. Notably, under the same optimal conditions, the removal efficiency of TCH remained at 77.00% even after five reuse cycles, indicating excellent photocatalytic stability. The degradation of TCH primarily occurred through deamination, demethylation, and hydrogenation pathways.
期刊介绍：
Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments.
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Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.
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