Visible-light-induced photocatalysis and peroxymonosulfate activation over ZnFe2O4 fine nanoparticles for degradation of Orange II

doi:10.1039/c5cy01735a

	Visible-light-induced photocatalysis and peroxymonosulfate activation over ZnFe2O4 fine nanoparticles for degradation of Orange II
	Wang, Junhu 1,2; Zhu, Kaixin 1,2,3; Wang, Yanjie 1,2,3; Jin, Changzi 1,2; Ganeshraja, Ayyakannu Sundaram 1,2
刊名	CATALYSIS SCIENCE & TECHNOLOGY
	2016
卷号	6 期号:7 页码:2296-2304
ISSN号	2044-4753
DOI	10.1039/c5cy01735a
文献子类	Article
英文摘要	Refractory and non-biodegradable pollutants produced by industries have inevitably brought great threat to human life. Integrating several kinds of advanced oxidation processes (AOPs) into one system has been proposed to be an efficient strategy to remove such pollutants from the environment at low cost. In this study, magnetic zinc ferrite fine nanoparticles, firstly synthesized by a novel soft chemical solution process, showed super reactivity, good reusability and easy separation ability for visible-light-induced Orange II degradation in an integrated ZnFe2O4/PMS (peroxymonosulfate, 2KHSO(5)center dot KHSO4 center dot K2SO4, OXONE) aqueous system. Powder X-ray diffraction, transmission electron microscopy, and Fe-57 Mossbauer and X-ray photoelectron spectroscopy were employed to characterize the structure and morphology as well as recognize the physicochemical changes of the fine nanoparticles before and after the reaction. The generated oxidizing intermediates during the degradation process were detected by electron paramagnetic resonance spectroscopy and classic quenching experiments, which confirmed that both sulfate radical (SO4 center dot-) and hydroxyl radical (. OH) co-existed in the degradation process. The systematic condition experiments further verified the dual functionality of the ZnFe2O4/PMS system, which actively acted as a photocatalyst and a PMS activator for dye molecule oxidation under visible light irradiation. This study proves that photocatalysis and PMS activation for remediation of organic pollutants in water can be easily integrated into one system by using zinc ferrite nanoparticles as an environmentally friendly catalyst.
WOS关键词	AQUEOUS-ORGANIC POLLUTANTS ; GRAPHENE OXIDE HYBRID ; HETEROGENEOUS ACTIVATION ; BISPHENOL-A ; CATALYTIC-OXIDATION ; SULFATE RADICALS ; FACILE SYNTHESIS ; FENTON CATALYST ; WATER ; PERSULFATE
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000373608400031
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170718]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Wang, Junhu
作者单位	1.Chinese Acad Sci, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Lab Catalysts & New Mat Aerosp, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Junhu,Zhu, Kaixin,Wang, Yanjie,et al. Visible-light-induced photocatalysis and peroxymonosulfate activation over ZnFe2O4 fine nanoparticles for degradation of Orange II[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(7):2296-2304.
APA	Wang, Junhu,Zhu, Kaixin,Wang, Yanjie,Jin, Changzi,&Ganeshraja, Ayyakannu Sundaram.(2016).Visible-light-induced photocatalysis and peroxymonosulfate activation over ZnFe2O4 fine nanoparticles for degradation of Orange II.CATALYSIS SCIENCE & TECHNOLOGY,6(7),2296-2304.
MLA	Wang, Junhu,et al."Visible-light-induced photocatalysis and peroxymonosulfate activation over ZnFe2O4 fine nanoparticles for degradation of Orange II".CATALYSIS SCIENCE & TECHNOLOGY 6.7(2016):2296-2304.