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Visible-light-induced photocatalysis and peroxymonosulfate activation over ZnFe2O4 fine nanoparticles for degradation of Orange II
Zhu, Kaixin1,2,3; Wang, Junhu1,2; Wang, Yanjie1,2,3; Jin, Changzi1,2; Ganeshraja, Ayyakannu Sundaram1,2
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
2016
ISSN2044-4753
DOI10.1039/c5cy01735a
Volume6Issue:7Pages:2296-2304
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordAQUEOUS-ORGANIC POLLUTANTS ; GRAPHENE OXIDE HYBRID ; HETEROGENEOUS ACTIVATION ; BISPHENOL-A ; CATALYTIC-OXIDATION ; SULFATE RADICALS ; FACILE SYNTHESIS ; FENTON CATALYST ; WATER ; PERSULFATE
AbstractRefractory 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.
Language英语
WOS IDWOS:000373608400031
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/170719
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang, Junhu
Affiliation1.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
Recommended Citation
GB/T 7714
Zhu, Kaixin,Wang, Junhu,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 Zhu, Kaixin,Wang, Junhu,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 Zhu, Kaixin,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.
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