{"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":19,"journal":{"name":"ACS Materials Letters","volume":null,"pages":null},"PeriodicalIF":9.6000,"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\":19,\"journal\":{\"name\":\"ACS Materials Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2024-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Materials Letters\",\"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\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Materials Letters","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":"MATERIALS SCIENCE, MULTIDISCIPLINARY","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 Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.