Electrodeposition-assisted biosynthesis of sulfur vacancy-rich Ag2S on a silver mesh by sulfate-reducing bacteria for efficient pollutant degradation
文献类型：期刊论文
| 作者 | Yang, Jing1,5; Zhai, Xiaofan1,4; Li, Zihao1,2; Zhang, Shiqi1,5; Wang, Chenlu1,2; Sun, Jiawen1; Ju, Peng3; Duan, Jizhou1,4; Hou, Baorong1,4 |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2026-01-05 |
| 卷号 | 728页码:11 |
| 关键词 | Sulfate-reducing bacteria Biosynthesis Ag2S Sulfur vacancy Pollutants |
| ISSN号 | 0927-7757 |
| DOI | 10.1016/j.colsurfa.2025.138703 |
| 通讯作者 | Zhai, Xiaofan(zhaixf@qdio.ac.cn) ; Sun, Jiawen() |
| 英文摘要 | Industrial wastewater containing persistent pollutants poses significant threats to aquatic ecosystems and human health. While metal sulfides are effective in degrading contaminants through catalytic oxidation, their powdered forms are difficult to recover and may cause secondary pollution. Moreover, conventional synthesis methods for these materials typically involve high energy consumption and hazardous chemicals. To overcome these limitations, we developed a novel electrodeposition-assisted biosynthetic strategy to fabricate immobilized, sulfur vacancy-rich Ag2S microparticles on a silver mesh (denoted SSSM-SRB) using sulfate-reducing bacteria. Key synthesis parameters, including bacterial cultivation time (8 days), electrochemical scanning cycles (10 cycles), and scan rates (50 mV/s), were systematically optimized to enhance catalytic activity. Under the optimized reaction conditions (pH 7.0, 40 degrees C, 0.1 M H2O2, 0.4 cm2/mL SSSM-SRB), the material achieved 99.9 % degradation of methylene blue (MB) within 120 min, significantly outperforming the performance of the abiotic control. This superior performance underscores the essential role of SRB-derived biomolecules in enhancing catalytic activity. Mechanistic studies revealed that SSSM-SRB activates H2O2 to generate multiple reactive oxygen species (& sdot;OH, O2 center dot- and 1O2), which collectively drive the degradation of MB. This work establishes a sustainable strategy for synthesizing immobilized bio-catalysts, paving the way for greener wastewater remediation technologies. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB1210302] ; Guangxi Science and Technology Program[Guike AA23026007] ; National Natural Science Foundation of China[42376204] ; National Natural Science Foundation of China[42476042] ; Shandong Provincial Natural Science Foundation[ZR2022MD023] ; International Partnership Program of Chinese Academy of Sciences[058GJHZ2023058FN] ; Key R & D Program of Shandong Province, China[2022CXPT027] ; Key R & D Program of Shandong Province, China[2023CXPT008] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001606323900002 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203701]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Zhai, Xiaofan; Sun, Jiawen |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, State Key Lab Adv Marine Mat, Qingdao 266071, Peoples R China 2.Qilu Univ Technol, Shandong Acad Sci, State Key Lab Biobased Mat & Green Papermaking LBM, Jinan 250353, Peoples R China 3.Minist Nat Resources, Inst Oceanog 1, Marine Bioresource & Environm Res Ctr, Marine Nat Prod Res & Dev Key Lab Qingdao, Qingdao 266061, Peoples R China 4.Guangxi Acad Sci, Inst Marine Corros Protect, Guangxi Key Lab Marine Environm Sci, Nanning 530007, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Jing,Zhai, Xiaofan,Li, Zihao,et al. Electrodeposition-assisted biosynthesis of sulfur vacancy-rich Ag2S on a silver mesh by sulfate-reducing bacteria for efficient pollutant degradation[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2026,728:11. |
| APA | Yang, Jing.,Zhai, Xiaofan.,Li, Zihao.,Zhang, Shiqi.,Wang, Chenlu.,...&Hou, Baorong.(2026).Electrodeposition-assisted biosynthesis of sulfur vacancy-rich Ag2S on a silver mesh by sulfate-reducing bacteria for efficient pollutant degradation.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,728,11. |
| MLA | Yang, Jing,et al."Electrodeposition-assisted biosynthesis of sulfur vacancy-rich Ag2S on a silver mesh by sulfate-reducing bacteria for efficient pollutant degradation".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 728(2026):11. |
入库方式： OAI收割
来源：海洋研究所
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