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

IMR OpenIR

	Accelerated degradation of sulfadiazine by wet mechanochemical synthesized nano-pyrite FeS2 based Fenton system: Performance, mechanism and applicability
	Shi, Xiaoguo 1; Ma, Ke 2; Gu, Yawei 1,3; Zhang, Wenqiu 1; Sun, Jing 1
通讯作者	Shi, Xiaoguo(neusxg@163.com)
	2022-07-01
发表期刊	SEPARATION AND PURIFICATION TECHNOLOGY
ISSN	1383-5866
卷号	292 页码:12
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.
关键词	FeS2 nanoparticle Wet mechanochemical synthesis Fenton reaction Antibiotic degradation
资助者	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
DOI	10.1016/j.seppur.2022.121060
收录类别	SCI
语种	英语
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
WOS类目	Engineering, Chemical
WOS记录号	WOS:000807530800001
出版者	ELSEVIER
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174249
专题	中国科学院金属研究所
通讯作者	Shi, Xiaoguo
作者单位	1.Qilu Univ Technol, Sch Environm Sci & Engn, Shandong Acad Sci, Jinan 250353, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Henan Univ Urban Construct, Henan Key Lab Water Pollut Control & Rehabil Tech, Pingdingshan 467036, 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.