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典型文献
Decoupling the adsorption mechanisms of arsenate at molecular level on modified cube-shaped sponge loaded superparamagnetic iron oxide nanoparticles
文献摘要：
In this study,a commercial cube-shaped open-celled cellulose sponge adsorbent was mod-ified by in-situ co-precipitation of superparamagnetic iron oxide nanoparticles(SPION)and used to remove As(V)from aqueous solutions.Fe K-edge X-ray absorption spectroscopy(XAS)and TEM identified maghemite as the main iron phase of the SPION nanoparticles with an average size 13 nm.Batch adsorption experiments at 800 mg/L showed a 63％increase of adsorption capacity when loading 2.6 wt.％mass fraction of SPION in the cube-sponge.Experimental determination of the adsorption thermodynamic parameters indicated that the As(V)adsorption on the composite material is a spontaneous and exothermic process.As K-edge XAS results confirmed that the adsorption enhancement on the composite can be attributed to the nanoparticles loaded.In addition,adsorbed As(V)did not get reduced to more toxic As(Ⅱ)and formed a binuclear corner-sharing complex with SPION.The advan-tageous cube-shape of the sponge-loaded SPION composite together with its high affinity and good adsorption capacity for As(V),good regeneration capability and the enhanced-diffusion attributed to its open-celled structure make this adsorbent a good candidate for industrial applications.
文献关键词：
中图分类号：
[1] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）
[2] 数理科学和化学（O） / 力学（O3） / 振动理论（O32） / 非线性振动（O322）
[3] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）
作者姓名：
Xiang-Yang Lou;Roberto Boada;Verónica Verdugo;Laura Simonelli;Gustavo Pérez;Manuel Valiente
作者机构：
GTS-UAB Research Group,Department of Chemistry,Facultat de Ciències,Universitat Autònoma de Barcelona,08193 Bellaterra,Spain;ALBA Synchrotron,Carrer de la llum 2-26,Cerdanyola del Vallès,08290 Barcelona,Spain;Centro de Excelencia en Nanotecnologia,Leitat Chile,Santiago 7500724,Chile
文献出处：
环境科学学报（英文版）
引用格式：
[1]Xiang-Yang Lou;Roberto Boada;Verónica Verdugo;Laura Simonelli;Gustavo Pérez;Manuel Valiente-.Decoupling the adsorption mechanisms of arsenate at molecular level on modified cube-shaped sponge loaded superparamagnetic iron oxide nanoparticles)[J].环境科学学报（英文版）,2022(11):1-12
A类：
maghemite,tageous
B类：
Decoupling,adsorption,mechanisms,arsenate,molecular,level,modified,cube,shaped,sponge,loaded,superparamagnetic,iron,oxide,nanoparticles,In,this,study,commercial,open,celled,cellulose,adsorbent,was,by,situ,precipitation,SPION,used,remove,from,aqueous,solutions,edge,ray,absorption,spectroscopy,XAS,TEM,identified,main,phase,average,size,Batch,experiments,showed,increase,capacity,when,loading,wt,mass,fraction,Experimental,determination,thermodynamic,parameters,indicated,that,composite,material,spontaneous,exothermic,process,results,confirmed,enhancement,attributed,addition,adsorbed,not,reduced,more,toxic,formed,binuclear,corner,sharing,complex,advan,together,its,high,affinity,good,regeneration,capability,enhanced,diffusion,structure,make,candidate,industrial,applications
AB值：
0.523437
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