Enhanced Fenton performance of wet-mechanochemically synthesized FeS 2 /Biochar: The multiple synergistic effect derived from mutual element doping
文献类型：期刊论文
| 作者 | Wen, Zunqing1; Shi, Xiaoguo1; Gu, Yawei1; Ma, Ke2; Song, Xiaozhe1; He, Ao1; Wang, Chen1; Zhang, Nianbo1; Sui, Huiying1; Xu, Chongqing3 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 493页码:15 |
| 关键词 | FeS2/Biochar Fenton reaction Wet-mechanochemical synthesis Mutual element doping Enhanced synergy |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2024.152080 |
| 通讯作者 | Shi, Xiaoguo(shixg@qlu.edu.cn) ; Xue, Rong(xr@qlu.edu.cn) |
| 英文摘要 | FeS2-biochar composites have been considered as promising heterogeneous Fenton materials for pollutants removal. However, the chemical synthesis of element-doped FeS2-biochar composite with superior performance and the comprehensive investigation for its underlying multiple synergistic mechanism remain a difficult endeavor. Herein, a novel FeS2/Biochar nanocomposite with mutual element doping was firstly synthesized by facile wet-mechanochemical method using iron, sulfur and bamboo-biochar for efficient organic pollutant (sulfamonomethoxine, SMM) removal. Experiment and DFT calculation results revealed that multiple synergistic effect between FeS2 and biochar derived from newly formed Fe-C and C-S-C bonds induced the abundant reactive oxygen species (ROS) and excellent electron transfer capacity. Fe-C sites facilitated the H2O2 adsorption and populated O-O bond in H2O2 for its barrierless dissociation into center dot OH via forming bridging C-Fe-O-O-Fe bond. Oxygen vacancy, C-S-C and Fe-C bonds, persistent free radicals (PFRs) accelerated the generation and transformation of ROS, which resulted in dominating free radical (center dot OH, center dot O2-, center dot SO4-) and auxiliary non-radical (1O2) pathway. Meanwhile, Fe3+/Fe2+ redox-cycle was expedited by electron donor/shuttle (S22-, BC, center dot O2-, C-S-C and Fe-C bonds). All these specialties contributed to the superior performance of FeS2/Biochar Fenton system for SMM removal at wide pH range (3-11) with negligible Fe release. Completely SMM (50 mg/L) removal was achieved within 20 min for 8 successive reuses. This work emphasized the concept of building mutual element doping on molecular level in enhancing FeS2-Biochar synergy towards efficient environmental remediation. |
| 资助项目 | Science, Education and Industry Integration Pilot Projects of Qilu University of Technology (Shandong Academy of Sciences)[2023PX016] ; Science, Education and Industry Integration Pilot Projects of Qilu University of Technology (Shandong Academy of Sciences)[2023PX049] ; Talent and Scientific Research Project of Qilu University of Technology (Shandong Academy of Sciences)[2023RCKY109] ; Talent and Scientific Research Project of Qilu University of Technology (Shandong Academy of Sciences)[2023RCKY113] ; Major Innovation Projects of Science, Education, and Industry Integration of Qilu University of Technology (Shandong Academy of Science)[2022JBZ02-05] ; Natural Science Foundation of Shandong Province[ZR2021QE042] ; Natural Science Foundation of Shandong Province[ZR2021QE004] ; Youth Innovation Team Plan of Higher Education in Shandong Province[2023 K139] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001252486700001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Science, Education and Industry Integration Pilot Projects of Qilu University of Technology (Shandong Academy of Sciences) ; Talent and Scientific Research Project of Qilu University of Technology (Shandong Academy of Sciences) ; Major Innovation Projects of Science, Education, and Industry Integration of Qilu University of Technology (Shandong Academy of Science) ; Natural Science Foundation of Shandong Province ; Youth Innovation Team Plan of Higher Education in Shandong Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Shi, Xiaoguo; Xue, Rong |
| 作者单位 | 1.Qilu Univ Technol, Shandong Acad Sci, Sch Environm Sci & Engn, Jinan 250353, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Qilu Univ Technol, Shandong Acad Sci, Ecol Inst Shandong Acad Sci, Jinan 250101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, Zunqing,Shi, Xiaoguo,Gu, Yawei,et al. Enhanced Fenton performance of wet-mechanochemically synthesized FeS 2 /Biochar: The multiple synergistic effect derived from mutual element doping[J]. CHEMICAL ENGINEERING JOURNAL,2024,493:15. |
| APA | Wen, Zunqing.,Shi, Xiaoguo.,Gu, Yawei.,Ma, Ke.,Song, Xiaozhe.,...&Xue, Rong.(2024).Enhanced Fenton performance of wet-mechanochemically synthesized FeS 2 /Biochar: The multiple synergistic effect derived from mutual element doping.CHEMICAL ENGINEERING JOURNAL,493,15. |
| MLA | Wen, Zunqing,et al."Enhanced Fenton performance of wet-mechanochemically synthesized FeS 2 /Biochar: The multiple synergistic effect derived from mutual element doping".CHEMICAL ENGINEERING JOURNAL 493(2024):15. |
入库方式： OAI收割
来源：金属研究所
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