{"title":"自组装雪旺菌-CdS 生物杂交系统在光辅助下提高铀矿废水净化能力","authors":"Guolin Yang, Ling Wei, Yingtong Lv, Yizhou He, Boming Zhu, Xudong Wu, Junhui He, Qing Wang, Wenkun Zhu, Tao Chen","doi":"10.1021/acsmaterialslett.4c00594","DOIUrl":null,"url":null,"abstract":"Integrated light-trapping capability semiconductor and bioreduction advantages of photosensitive biohybrid systems are a promising approach to purify uranium mine wastewater. In this study, we developed a photosensitized <i>Shewanella putrefaciens</i>-CdS biohybrid system for the removal of uranium, which achieved more than 90% U(VI) removal efficiency in real uranium mine wastewater. By use of in situ Kelvin probe force microscopy (KPFM), we identified that photoelectrons generated over CdS were transferred to <i>Shewanella putrefaciens</i> (<i>S. putrefaciens</i>) to enhance the excellent uranium removal performance of the <i>S. putrefaciens</i>–CdS biohybrid. In addition, we performed transcriptomics analysis on the genes (cytochrome c, ABC transport, and electron transfer) linked to U(VI) reduction in the biohybrid system and discovered that these genes were significantly upregulated. This work deepens our understanding of the electron transfer pathways and the physiological activities of the biohybrid system, which provides an important reference for the purification of uranium mine wastewater.","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":null,"pages":null},"PeriodicalIF":11.3000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photo-Assisted Enhancement of Uranium Mine Wastewater Purification by a Self-Assembled Shewanella putrefaciens-CdS Biohybrid System\",\"authors\":\"Guolin Yang, Ling Wei, Yingtong Lv, Yizhou He, Boming Zhu, Xudong Wu, Junhui He, Qing Wang, Wenkun Zhu, Tao Chen\",\"doi\":\"10.1021/acsmaterialslett.4c00594\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Integrated light-trapping capability semiconductor and bioreduction advantages of photosensitive biohybrid systems are a promising approach to purify uranium mine wastewater. In this study, we developed a photosensitized <i>Shewanella putrefaciens</i>-CdS biohybrid system for the removal of uranium, which achieved more than 90% U(VI) removal efficiency in real uranium mine wastewater. By use of in situ Kelvin probe force microscopy (KPFM), we identified that photoelectrons generated over CdS were transferred to <i>Shewanella putrefaciens</i> (<i>S. putrefaciens</i>) to enhance the excellent uranium removal performance of the <i>S. putrefaciens</i>–CdS biohybrid. In addition, we performed transcriptomics analysis on the genes (cytochrome c, ABC transport, and electron transfer) linked to U(VI) reduction in the biohybrid system and discovered that these genes were significantly upregulated. This work deepens our understanding of the electron transfer pathways and the physiological activities of the biohybrid system, which provides an important reference for the purification of uranium mine wastewater.\",\"PeriodicalId\":9,\"journal\":{\"name\":\"ACS Catalysis \",\"volume\":null,\"pages\":null},\"PeriodicalIF\":11.3000,\"publicationDate\":\"2024-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Catalysis \",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1021/acsmaterialslett.4c00594\",\"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":"ACS Catalysis ","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acsmaterialslett.4c00594","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Photo-Assisted Enhancement of Uranium Mine Wastewater Purification by a Self-Assembled Shewanella putrefaciens-CdS Biohybrid System
Integrated light-trapping capability semiconductor and bioreduction advantages of photosensitive biohybrid systems are a promising approach to purify uranium mine wastewater. In this study, we developed a photosensitized Shewanella putrefaciens-CdS biohybrid system for the removal of uranium, which achieved more than 90% U(VI) removal efficiency in real uranium mine wastewater. By use of in situ Kelvin probe force microscopy (KPFM), we identified that photoelectrons generated over CdS were transferred to Shewanella putrefaciens (S. putrefaciens) to enhance the excellent uranium removal performance of the S. putrefaciens–CdS biohybrid. In addition, we performed transcriptomics analysis on the genes (cytochrome c, ABC transport, and electron transfer) linked to U(VI) reduction in the biohybrid system and discovered that these genes were significantly upregulated. This work deepens our understanding of the electron transfer pathways and the physiological activities of the biohybrid system, which provides an important reference for the purification of uranium mine wastewater.
期刊介绍：
ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels.
The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.
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