Preparation and photocatalytic activity of magnetic TiO2-Fe3O4/MIL-101(Cr) composites - Details

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Abstract：

The　magnetic　TiO2-Fe3O4/MIL(Material　Institute　Lavoisier)-101(Cr)　composites　were　synthesized　via　in　situ　hydrothermal　method.　The　structure　and　performance　of　composites　were　characterized　by　XRD,　SEM,　UV-Vis　DRS,　BET　and　superconducting　magnet　system.　The　photocatalytic　activity　of　TiO2-Fe3O4/MIL-101(Cr)　composites　were　investigated　by　photocatalytic　degradation　of　MB　solution,　and　the　stability　of　TiO2-Fe3O4/MIL-101(Cr)　composites　was　also　studied.　The　results　show　that　the　thiohydroxy-modified-Fe3O4　and　thiohydroxy-modified-TiO2,　can　be　successfully　combined　with　MIL-101(Cr),　and　a　notable　absorption　extension　in　the　visible-light　region　can　be　observed　for　the　TiO2-Fe3O4/MIL-101(Cr)　composites.　The　TiO2-Fe3O4/MIL-101(Cr)(400)　composite　exhibits　the　highest　photocatalytic　activity,　while　the　corresponding　photodegradation　efficiency　for　MB　is　80%　after　120　min　irradiation.　The　TiO2-Fe3O4/MIL-101(Cr)　composites　also　have　a　good　stability　and　can　be　easily　separated　from　solution　by　an　external　magnet.　©　2017,Chinese　Society　for　Composite　Materials.　All　right　reserved.

Keyword：

Chromium compounds Complexation Crystalline materials Iron oxides Magnetism Magnetite Magnets Organometallics Photocatalysis Photocatalytic activity Photodegradation Superconducting magnets Titanium dioxide

Community：

[ 1 ] [Li, Xiaojuan]College of Environmental and Resource, Fuzhou University, Fuzhou; 350116, China
[ 2 ] [Li, Xiaojuan]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
[ 3 ] [Huang, Bin]College of Environmental and Resource, Fuzhou University, Fuzhou; 350116, China
[ 4 ] [Li, Xiaofei]College of Environmental and Resource, Fuzhou University, Fuzhou; 350116, China
[ 5 ] [Lin, Zhenyu]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
[ 6 ] [Lin, Chunxiang]College of Environmental and Resource, Fuzhou University, Fuzhou; 350116, China
[ 7 ] [Liu, Yifan]College of Environmental and Resource, Fuzhou University, Fuzhou; 350116, China

Reprint 's Address：

李小娟
[li, xiaojuan]state key laboratory of photocatalysis on energy and environment, fuzhou university, fuzhou; 350002, china;;[li, xiaojuan]college of environmental and resource, fuzhou university, fuzhou; 350116, china

Email：

lixiaojuan@fzu.edu.cn

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