Accelerated degradation of sulfadiazine by wet mechanochemical synthesized nano-pyrite FeS2 based Fenton system: Performance, mechanism and applicability

doi:10.1016/j.seppur.2022.121060

CORC > 金属研究所 > 中国科学院金属研究所

	Accelerated degradation of sulfadiazine by wet mechanochemical synthesized nano-pyrite FeS2 based Fenton system: Performance, mechanism and applicability
	Shi, Xiaoguo 3; Ma, Ke 2; Gu, Yawei 1,3; Zhang, Wenqiu 3; Sun, Jing 3
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2022-07-01
卷号	292 页码:12
关键词	FeS2 nanoparticle Wet mechanochemical synthesis Fenton reaction Antibiotic degradation
ISSN号	1383-5866
DOI	10.1016/j.seppur.2022.121060
通讯作者	Shi, Xiaoguo(neusxg@163.com)
英文摘要	Pyrite have been recognized as a promising Fenton reagent to degrade multitudinous organic contaminants. However, the dominating contribution of heterogeneous and homogeneous Fenton reaction to degradation in pyrite Fenton system is ambiguous. In this work, pyrite FeS2 nanoparticles were newly prepared by a wet ball milling method with iron, sulfur and ethanol without protective gas. A subsequent heat-treatment was used to optimize the pyrite crystallinity. The degradation performance of synthesized FeS2 Fenton system for sulfadiazine were systematically investigated for the first time. The synthesized FeS2 Fenton system exhibited ultra-fast and superior degradation ability at wide pH range (3-9) compared with current pyrite Fenton system and 100% sulfadiazine was removed in 4 min with 0.4 g/L FeS2, 2.5 mmol/L H2O2 and initial pH of 7. It's found that ball milling process and heat-treatment affect the performance of synthesized FeS2 Fenton system. The pH self-adjustment induced by accelerated dissolution of amorphous FeS2 and the Fe2+/Fe3+ cyclic regeneration ability resulted in the dominating homogeneous Fenton reaction to degrade sulfadiazine. The maintained excellent degradation ability of synthesized FeS2 after reused three times, in scale-up system, exposed in air for 5 weeks or in real water system (tap water and river water) indicated its promising application possibility and the possible degradation pathways of sulfadiazine by synthesized FeS2 Fenton system were also proposed.
资助项目	National Natural Science Foundation of China[52071318] ; Open Project Fund of Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology[CJSP2021003] ; International Cooperation Research Special Funds Project of Qilu University of Technology (Shandong Academy of Sciences)[QLUTGJHZ2018004] ; National Undergraduate Training Program for Innovation and Entrepreneurship of China[S202010431007]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000807530800001
资助机构	National Natural Science Foundation of China ; Open Project Fund of Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology ; International Cooperation Research Special Funds Project of Qilu University of Technology (Shandong Academy of Sciences) ; National Undergraduate Training Program for Innovation and Entrepreneurship of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174248]
专题	金属研究所_中国科学院金属研究所
通讯作者	Shi, Xiaoguo
作者单位	1.Henan Univ Urban Construct, Henan Key Lab Water Pollut Control & Rehabil Tech, Pingdingshan 467036, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Qilu Univ Technol, Sch Environm Sci & Engn, Shandong Acad Sci, Jinan 250353, Peoples R China
推荐引用方式 GB/T 7714	Shi, Xiaoguo,Ma, Ke,Gu, Yawei,et al. Accelerated degradation of sulfadiazine by wet mechanochemical synthesized nano-pyrite FeS2 based Fenton system: Performance, mechanism and applicability[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,292:12.
APA	Shi, Xiaoguo,Ma, Ke,Gu, Yawei,Zhang, Wenqiu,&Sun, Jing.(2022).Accelerated degradation of sulfadiazine by wet mechanochemical synthesized nano-pyrite FeS2 based Fenton system: Performance, mechanism and applicability.SEPARATION AND PURIFICATION TECHNOLOGY,292,12.
MLA	Shi, Xiaoguo,et al."Accelerated degradation of sulfadiazine by wet mechanochemical synthesized nano-pyrite FeS2 based Fenton system: Performance, mechanism and applicability".SEPARATION AND PURIFICATION TECHNOLOGY 292(2022):12.