Molecularly imprinted TiO2 hybridized magnetic Fe3O4 nanoparticles for selective photocatalytic degradation and removal of estrone

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Molecularly imprinted TiO2 hybridized magnetic Fe3O4 nanoparticles for selective photocatalytic degradation and removal of estrone
	Xu, Shoufang 1,2; Lu, Hongzhi 1; Chen, Lingxin2 ; Wang, Xiaochuan 3
刊名	RSC ADVANCES
	2014
卷号	4 期号:85 页码:45266-45274
关键词	LIQUID-PHASE DEPOSITION WATER SAMPLES QUANTUM DOTS NANOCOMPOSITE FLUORESCENT POLYMERS MICROSPHERES RECOGNITION REDUCTION
ISSN号	2046-2069
通讯作者	Xu, SF (reprint author), Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China. xshfang1981@163.com ; lxchen@yic.ac.cn ; wangwxc@iccas.ac.cn
产权排序	[Xu, Shoufang; Lu, Hongzhi] Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China; [Xu, Shoufang; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China; [Wang, Xiaochuan] Minist Land & Resources, Natl Res Ctr Geoanal, Key Lab Ecol Geochem, Beijing 100037, Peoples R China
中文摘要	As a widely used photocatalyst, titania (TiO2) enjoys significant advantages; however, it faces the severe challenge of poor selectivity. And interestingly, molecular imprinting gains great popularity, owing to its desired recognition specificity. Herein, by using estrone as a template molecule, we prepared molecularly imprinted TiO2 hybridized magnetic ferroferric oxide (Fe3O4) nanoparticles through a semi-covalent approach by a liquid phase deposition method, for selective photocatalytic degradation and removal of target estrone with the irradiation of UV light. The obtained Fe3O4@SiO2@ imprinted TiO2 displayed high adsorption capacity, fast kinetics and high selectivity. In the presence of 10 times of coexisting nontarget compounds, the apparent rate constant, k(app), for photodegradation of target estrone over the hybridized nanoparticles, was about 6 times of that over net TiO2. Also, excellent stability during long-time photocatalysis was exhibited. More importantly, the Fe3O4@imprinted TiO2 provided potential application prospectives for photocatalytic removal of trace target organic pollutants in the presence of high-level pollutants.
英文摘要	As a widely used photocatalyst, titania (TiO2) enjoys significant advantages; however, it faces the severe challenge of poor selectivity. And interestingly, molecular imprinting gains great popularity, owing to its desired recognition specificity. Herein, by using estrone as a template molecule, we prepared molecularly imprinted TiO2 hybridized magnetic ferroferric oxide (Fe3O4) nanoparticles through a semi-covalent approach by a liquid phase deposition method, for selective photocatalytic degradation and removal of target estrone with the irradiation of UV light. The obtained Fe3O4@SiO2@ imprinted TiO2 displayed high adsorption capacity, fast kinetics and high selectivity. In the presence of 10 times of coexisting nontarget compounds, the apparent rate constant, k(app), for photodegradation of target estrone over the hybridized nanoparticles, was about 6 times of that over net TiO2. Also, excellent stability during long-time photocatalysis was exhibited. More importantly, the Fe3O4@imprinted TiO2 provided potential application prospectives for photocatalytic removal of trace target organic pollutants in the presence of high-level pollutants.
学科主题	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	LIQUID-PHASE DEPOSITION ; WATER SAMPLES ; QUANTUM DOTS ; NANOCOMPOSITE ; FLUORESCENT ; POLYMERS ; MICROSPHERES ; RECOGNITION ; REDUCTION
收录类别	SCI
语种	英语
WOS记录号	WOS:000342993500056
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8776]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China 3.Minist Land & Resources, Natl Res Ctr Geoanal, Key Lab Ecol Geochem, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Xu, Shoufang,Lu, Hongzhi,Chen, Lingxin,et al. Molecularly imprinted TiO2 hybridized magnetic Fe3O4 nanoparticles for selective photocatalytic degradation and removal of estrone[J]. RSC ADVANCES,2014,4(85):45266-45274.
APA	Xu, Shoufang,Lu, Hongzhi,Chen, Lingxin,&Wang, Xiaochuan.(2014).Molecularly imprinted TiO2 hybridized magnetic Fe3O4 nanoparticles for selective photocatalytic degradation and removal of estrone.RSC ADVANCES,4(85),45266-45274.
MLA	Xu, Shoufang,et al."Molecularly imprinted TiO2 hybridized magnetic Fe3O4 nanoparticles for selective photocatalytic degradation and removal of estrone".RSC ADVANCES 4.85(2014):45266-45274.