Lijuan Xie, Yihong Zhu, Yun Deng, Zhenxing Huang, Aijia Zou, Huifang Yan, Wenquan Ruan
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{"title":"用于降解双酚 A 的过硫酸盐活化 LaCuMnOx:对高盐环境的卓越耐受性","authors":"Lijuan Xie, Yihong Zhu, Yun Deng, Zhenxing Huang, Aijia Zou, Huifang Yan, Wenquan Ruan","doi":"10.1002/jctb.7743","DOIUrl":null,"url":null,"abstract":"BackgroundLaCuMnOx (LCMO) perovskite was designed as an effective catalyst to activate peroxydisulfate (PDS) to remove bisphenol A (BPA) in hypersaline wastewater.ResultsIn the LCMO/PDS system, BPA (10 mg/L) was removed completely and the mineralization degree reached 74.9% in the presence of 0.12 g/L catalyst and 1.2 mM PDS. The BPA removal efficiency was still almost 100% even after five cycles. Metal ion leakage also indicated the stability of the catalytic system. <jats:sup>•</jats:sup>OH, SO<jats:sub>4</jats:sub><jats:sup>•−</jats:sup>, <jats:sup>1</jats:sup>O<jats:sub>2</jats:sub>, and O<jats:sub>2</jats:sub><jats:sup>•−</jats:sup> all contributed to BPA removal, and O<jats:sub>2</jats:sub><jats:sup>•−</jats:sup> accounted for the greatest contribution. The presence of oxygen vacancies (V<jats:sub>o</jats:sub><jats:sup>··</jats:sup>) on the surface of the catalyst was important for PDS activation and the formation of active species. In addition, the system could still maintain outstanding performance even when [Cl<jats:sup>−</jats:sup>] and [SO<jats:sub>4</jats:sub><jats:sup>2−</jats:sup>] were 100 g/L. CO<jats:sub>3</jats:sub><jats:sup>2−</jats:sup> and HCO<jats:sub>3</jats:sub><jats:sup>−</jats:sup> inhibited BPA degradation greatly, even at very low concentrations. The inhibitory effect was related to changes in the pH of the solution caused by the addition of CO<jats:sub>3</jats:sub><jats:sup>2−</jats:sup> and HCO<jats:sub>3</jats:sub><jats:sup>−</jats:sup>. This effect could be eliminated by adjusting the pH.ConclusionThe system showed excellent catalytic performance, stability, and inorganic anion tolerance, indicating its potential for application in hypersaline wastewater treatment. © 2024 Society of Chemical Industry (SCI).","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.8000,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"LaCuMnOx perovskite activating persulfate for the degradation of bisphenol A: excellent tolerance to hypersaline environment\",\"authors\":\"Lijuan Xie, Yihong Zhu, Yun Deng, Zhenxing Huang, Aijia Zou, Huifang Yan, Wenquan Ruan\",\"doi\":\"10.1002/jctb.7743\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"BackgroundLaCuMnOx (LCMO) perovskite was designed as an effective catalyst to activate peroxydisulfate (PDS) to remove bisphenol A (BPA) in hypersaline wastewater.ResultsIn the LCMO/PDS system, BPA (10 mg/L) was removed completely and the mineralization degree reached 74.9% in the presence of 0.12 g/L catalyst and 1.2 mM PDS. The BPA removal efficiency was still almost 100% even after five cycles. Metal ion leakage also indicated the stability of the catalytic system. <jats:sup>•</jats:sup>OH, SO<jats:sub>4</jats:sub><jats:sup>•−</jats:sup>, <jats:sup>1</jats:sup>O<jats:sub>2</jats:sub>, and O<jats:sub>2</jats:sub><jats:sup>•−</jats:sup> all contributed to BPA removal, and O<jats:sub>2</jats:sub><jats:sup>•−</jats:sup> accounted for the greatest contribution. The presence of oxygen vacancies (V<jats:sub>o</jats:sub><jats:sup>··</jats:sup>) on the surface of the catalyst was important for PDS activation and the formation of active species. In addition, the system could still maintain outstanding performance even when [Cl<jats:sup>−</jats:sup>] and [SO<jats:sub>4</jats:sub><jats:sup>2−</jats:sup>] were 100 g/L. CO<jats:sub>3</jats:sub><jats:sup>2−</jats:sup> and HCO<jats:sub>3</jats:sub><jats:sup>−</jats:sup> inhibited BPA degradation greatly, even at very low concentrations. The inhibitory effect was related to changes in the pH of the solution caused by the addition of CO<jats:sub>3</jats:sub><jats:sup>2−</jats:sup> and HCO<jats:sub>3</jats:sub><jats:sup>−</jats:sup>. This effect could be eliminated by adjusting the pH.ConclusionThe system showed excellent catalytic performance, stability, and inorganic anion tolerance, indicating its potential for application in hypersaline wastewater treatment. © 2024 Society of Chemical Industry (SCI).\",\"PeriodicalId\":15335,\"journal\":{\"name\":\"Journal of chemical technology and biotechnology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-09-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of chemical technology and biotechnology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1002/jctb.7743\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of chemical technology and biotechnology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1002/jctb.7743","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
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LaCuMnOx perovskite activating persulfate for the degradation of bisphenol A: excellent tolerance to hypersaline environment
BackgroundLaCuMnOx (LCMO) perovskite was designed as an effective catalyst to activate peroxydisulfate (PDS) to remove bisphenol A (BPA) in hypersaline wastewater.ResultsIn the LCMO/PDS system, BPA (10 mg/L) was removed completely and the mineralization degree reached 74.9% in the presence of 0.12 g/L catalyst and 1.2 mM PDS. The BPA removal efficiency was still almost 100% even after five cycles. Metal ion leakage also indicated the stability of the catalytic system. • OH, SO4 •− , 1 O2 , and O2 •− all contributed to BPA removal, and O2 •− accounted for the greatest contribution. The presence of oxygen vacancies (Vo ·· ) on the surface of the catalyst was important for PDS activation and the formation of active species. In addition, the system could still maintain outstanding performance even when [Cl− ] and [SO4 2− ] were 100 g/L. CO3 2− and HCO3 − inhibited BPA degradation greatly, even at very low concentrations. The inhibitory effect was related to changes in the pH of the solution caused by the addition of CO3 2− and HCO3 − . This effect could be eliminated by adjusting the pH.ConclusionThe system showed excellent catalytic performance, stability, and inorganic anion tolerance, indicating its potential for application in hypersaline wastewater treatment. © 2024 Society of Chemical Industry (SCI).