Enhanced Fenton performance of wet-mechanochemically synthesized FeS 2 /Biochar: The multiple synergistic effect derived from mutual element doping

doi:10.1016/j.cej.2024.152080

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	Enhanced Fenton performance of wet-mechanochemically synthesized FeS 2 /Biochar: The multiple synergistic effect derived from mutual element doping
	Wen, Zunqing 1; Shi, Xiaoguo 1; Gu, Yawei 1; Ma, Ke 2; Song, Xiaozhe 1; He, Ao 1; Wang, Chen 1; Zhang, Nianbo 1; Sui, Huiying 1; Xu, Chongqing 3; Xue, Rong 1
通讯作者	Shi, Xiaoguo(shixg@qlu.edu.cn) ; Xue, Rong(xr@qlu.edu.cn)
	2024-08-01
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	493 页码:15
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.
关键词	FeS2/Biochar Fenton reaction Wet-mechanochemical synthesis Mutual element doping Enhanced synergy
资助者	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
DOI	10.1016/j.cej.2024.152080
收录类别	SCI
语种	英语
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
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:001252486700001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/187436
专题	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.