Degradation of tetracycline in water using Fe3O4 nanospheres as Fenton-like catalysts: kinetics, mechanisms and pathways

doi:10.1039/d0nj00125b

	Degradation of tetracycline in water using Fe3O4 nanospheres as Fenton-like catalysts: kinetics, mechanisms and pathways
	Nie, Mingxing 1,3; Li, Yulian 1,3; He, Junyong 3; Xie, Chao 3; Wu, Zijian 3; Sun, Bai 2; Zhang, Kaisheng 3; Kong, Lingtao 3; Liu, Jinhuai 3
刊名	NEW JOURNAL OF CHEMISTRY
	2020-02-21
卷号	44
ISSN号	1144-0546
DOI	10.1039/d0nj00125b
通讯作者	Zhang, Kaisheng(kszhang@iim.ac.cn) ; Kong, Lingtao(ltkong@iim.ac.cn)
英文摘要	Fe3O4 nanospheres (Fe3O4-S) synthesized via a facile one-pot solvothermal method were used for H2O2 activation and tetracycline (TC) elimination from aqueous solutions. It can be found that more than 80% of TC was degraded in the Fe3O4-S/H2O2 system. Besides, batch experiments were conducted to investigate the effects of different parameters such as catalyst dosages, H2O2 concentration, pH values and temperature on the degradation of TC, and these experimental results were also described by the pseudo-first-order model. Radical quenching experiments and an electron paramagnetic resonance (EPR) technique revealed that & x2d9;OH and & x2d9;O-2(-)/& x2d9;HO2 were involved and & x2d9;OH generated on the surface of Fe3O4-S played a main role in TC degradation. The XPS observations demonstrated that the surface Fe-II participated in the H2O2 activation through the redox reactions. Moreover, thirteen intermediate products were monitored by the LC-MS and possible degradation pathways of TC were accordingly proposed. The Fe3O4-S catalyst exhibited good reusability and the catalytic performance of it did not show any significant decrease even after five trials. It was worth noting that the optimal pH for TC degradation was expanded to neutral pH conditions by using the Fe3O4-S/H2O2 system. Additionally, Fe3O4-S was easily separated from the reaction solutions by virtue of its magnetism (66.8 emu g(-1)), which is beneficial for reuse of the catalysts.
资助项目	State Key Research Development Program of China[2019YFC040023] ; Natural Science Foundation of China[21976182] ; Natural Science Foundation of China[61573334] ; Natural Science Foundation of China[31571567] ; Natural Science Foundation of China[61873253] ; Science and Technology Major Projects of Anhui Province[18030801104] ; Science and Technology Major Projects of Anhui Province[17030801033] ; Science and Technology Major Projects of Anhui Province[17030901069] ; Key Technologies R & D Program Foundation of Anhui Province[1704a0802136]
WOS关键词	ANTIBIOTIC-RESISTANCE GENES ; ADVANCED OXIDATION PROCESSES ; WASTE-WATER ; HETEROGENEOUS CATALYST ; ORGANIC POLLUTANTS ; REMOVAL ; EFFICIENT ; CARBON ; PHOTOCATALYSTS ; NANOPARTICLES
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000516578300017
资助机构	State Key Research Development Program of China ; Natural Science Foundation of China ; Science and Technology Major Projects of Anhui Province ; Key Technologies R & D Program Foundation of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103819]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Kaisheng; Kong, Lingtao
作者单位	1.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China 2.Anhui Jianzhu Univ, Coll Environm & Energy Engn, Key Lab Water Pollut Control & Wastewater Resourc, Hefei 230601, Peoples R China 3.Chinese Acad Sci, Inst Intelligent Machines, Nanomat & Environm Detect Lab, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Nie, Mingxing,Li, Yulian,He, Junyong,et al. Degradation of tetracycline in water using Fe3O4 nanospheres as Fenton-like catalysts: kinetics, mechanisms and pathways[J]. NEW JOURNAL OF CHEMISTRY,2020,44.
APA	Nie, Mingxing.,Li, Yulian.,He, Junyong.,Xie, Chao.,Wu, Zijian.,...&Liu, Jinhuai.(2020).Degradation of tetracycline in water using Fe3O4 nanospheres as Fenton-like catalysts: kinetics, mechanisms and pathways.NEW JOURNAL OF CHEMISTRY,44.
MLA	Nie, Mingxing,et al."Degradation of tetracycline in water using Fe3O4 nanospheres as Fenton-like catalysts: kinetics, mechanisms and pathways".NEW JOURNAL OF CHEMISTRY 44(2020).