Synergistic Adsorption by Biomassbased Fe-Al(Hydr)oxide Nanocomposite of Fluoride and Arsenic
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摘要
Fe-Al(hydr)oxide nano-/micro-particles were well grown and dispersed on a wheat straw template, which was characterized by a scanning electron microscope(SEM) with energy-dispersive X-ray spectroscopy(EDS), X-ray diffraction(XRD), and a vibrating sample magnetometer(VSM). The adsorption mechanism of the biomass-based Fe-Al(hydr)oxide nanocomposite was studied by the adsorption isotherms, which followed the Langmuir model better than the Freundlich and Temkin models. In particular, a synergistic adsorption by the mixed Fe-Al(hydr)oxide nano-/micro-particles based on the wheat straw was found, with higher maximum adsorption capacity(Q_0) than that of the material containing only Fe_3O_4 or Al(OH)_3 nano-/micro-particles, which was most obvious when the mole ratio of Fe to Al was 1:1. The degree of this unusual effect was reasonably determined by the departure between the experimental and calculated maximum adsorption capacity(Q_0-Q_0(cal)), which showed that the synergistic effect was most pronounced when the mole ratio of Fe to Al was approximately 1:1. The good adsorption capacity of the mixed Fe-Al(hydr)oxide nano-/micro-particles and the good dispersity by the wheat straw matrix were combined in the biomass-based Fe-Al(hydr)oxide nanocomposite. The nanocomposite material showed high adsorption capacity for both fluoride(F-) and arsenic(As(III) and As(V)), and had the advantage of magnetic separation by tuning its compositions.
Fe-Al(hydr)oxide nano-/micro-particles were well grown and dispersed on a wheat straw template, which was characterized by a scanning electron microscope(SEM) with energy-dispersive X-ray spectroscopy(EDS), X-ray diffraction(XRD), and a vibrating sample magnetometer(VSM). The adsorption mechanism of the biomass-based Fe-Al(hydr)oxide nanocomposite was studied by the adsorption isotherms, which followed the Langmuir model better than the Freundlich and Temkin models. In particular, a synergistic adsorption by the mixed Fe-Al(hydr)oxide nano-/micro-particles based on the wheat straw was found, with higher maximum adsorption capacity(Q_0) than that of the material containing only Fe_3O_4 or Al(OH)_3 nano-/micro-particles, which was most obvious when the mole ratio of Fe to Al was 1:1. The degree of this unusual effect was reasonably determined by the departure between the experimental and calculated maximum adsorption capacity(Q_0-Q_0(cal)), which showed that the synergistic effect was most pronounced when the mole ratio of Fe to Al was approximately 1:1. The good adsorption capacity of the mixed Fe-Al(hydr)oxide nano-/micro-particles and the good dispersity by the wheat straw matrix were combined in the biomass-based Fe-Al(hydr)oxide nanocomposite. The nanocomposite material showed high adsorption capacity for both fluoride(F-) and arsenic(As(III) and As(V)), and had the advantage of magnetic separation by tuning its compositions.
Fe-Al(hydr)oxide nano-/micro-particles were well grown and dispersed on a wheat straw template, which was characterized by a scanning electron microscope(SEM) with energy-dispersive X-ray spectroscopy(EDS), X-ray diffraction(XRD), and a vibrating sample magnetometer(VSM). The adsorption mechanism of the biomass-based Fe-Al(hydr)oxide nanocomposite was studied by the adsorption isotherms, which followed the Langmuir model better than the Freundlich and Temkin models. In particular, a synergistic adsorption by the mixed Fe-Al(hydr)oxide nano-/micro-particles based on the wheat straw was found, with higher maximum adsorption capacity(Q_0) than that of the material containing only Fe_3O_4 or Al(OH)_3 nano-/micro-particles, which was most obvious when the mole ratio of Fe to Al was 1:1. The degree of this unusual effect was reasonably determined by the departure between the experimental and calculated maximum adsorption capacity(Q_0-Q_0(cal)), which showed that the synergistic effect was most pronounced when the mole ratio of Fe to Al was approximately 1:1. The good adsorption capacity of the mixed Fe-Al(hydr)oxide nano-/micro-particles and the good dispersity by the wheat straw matrix were combined in the biomass-based Fe-Al(hydr)oxide nanocomposite. The nanocomposite material showed high adsorption capacity for both fluoride(F-) and arsenic(As(III) and As(V)), and had the advantage of magnetic separation by tuning its compositions.
引文
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[38]Pan B,Xing B.Adsorption mechanisms of organic chemicals on carbon nanotubes[J].Environ Sci Technol,2008,42(24):9005-9013.
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[41]Xiong R,Wang Y,Zhang X,et al.Facile synthesis of magnetic nanocomposites of cellulose@ultrasmall iron oxide nanoparticles for water treatment[J].RSC Adv,2014,4(43):22632-22641.
[42]Yu X,Kang D,Hu Y,et al.One-pot synthesis of porous magnetic cellulose beads for the removal of metal ions[J].RSC Adv,2014,4(59):31362-31369.
[43]Tian Y,Wu M,Lin X,et al.Synthesis of magnetic wheat straw for arsenic adsorption[J].J Hazard Mater,2011,193:10-16.
[44]Liu R,Yu H,Huang Y.Structure and morphology of cellulose in wheat straw[J].Cellulose,2005,12(1):25-34.
[45]Yu H,Liu R,Shen D,et al.Study on morphology and orientation of cellulose in the vascular bundle of wheat straw[J].Polymer,2005,46(15):5689-5694.
[46]Cao M S,Yang J,Song W L,et al.Ferroferric oxide/multiwalled carbon nanotube vs polyaniline/ferroferric oxide/multiwalled carbon nanotube multiheterostructures for highly effective microwave absorption[J].ACS Appl Mater Interfaces,2012,4(12):6949-6956.
[47]Tanada S,Kabayama M,Kawasaki N,et al.Removal of phosphate by aluminum oxide hydroxide[J].J Coll Interf Sci,2003,257(1):135-140.
[48]Deng Y,Qi D,Deng C,et al.Superparamagnetic highmagnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins[J].J Am Chem Soc,2008,130(1):28-29.
[2]Qiu J.China to spend billions cleaning up groundwater[J].Science,2011,334(6057):745-745.
[3]Banerjee K,Amy G L,Prevost M,et al.Kinetic and thermodynamic aspects of adsorption of arsenic onto granular ferric hydroxide(GFH)[J].Water Res,2008,42(13):3371-3378.
[4]An B,Liang Q,Zhao D.Removal of arsenic(V)from spent ion exchange brine using a new class of starch-bridged magnetite nanoparticles[J].Water Res,2011,45(5):1961-1972.
[5]Tian Y,Wu M,Liu R,et al.Modified native cellulose fibers-A novel efficient adsorbent for both fluoride and arsenic[J].J Hazard Mater,2011,185(1):93-100.
[6]Wu Z,Li W,Webley P A,et al.General and controllable synthesis of novel mesoporous magnetic iron oxide@carbon encapsulates for efficient arsenic removal[J].Adv Mater,2012,24(4):485-491.
[7]Baker J L,Sudarsan N,Weinberg Z,et al.Widespread genetic switches and toxicity resistance proteins for fluoride[J].Science,2012,335(6065):233-235.
[8]Zhang Q,Du Q,Jiao T,et al.Rationally designed porous polystyrene encapsulated zirconium phosphate nanocomposite for highly efficient fluoride uptake in waters[J].Sci Rep,2013,DOI:10.1038/srep02551.
[9]Rodríguez-Lado L,Sun G,Berg M,et al.Groundwater arsenic contamination throughout China[J].Science,2013,341(6148):866-868.
[10]Jing C,Cui J,Huang Y,et al.Fabrication,characterization,and application of a composite adsorbent for simultaneous removal of arsenic and fluoride[J].ACS Appl Mater Interfaces,2012,4(2):714-720.
[11]Liu M,Wang Y,Chen L,et al.Mg(OH)2 Supported Nanoscale Zero Valent Iron Enhancing the Removal of Pb(II)from Aqueous Solution[J].ACS Appl Mater Interfaces,2015,7(15):7961-7969.
[12]Zularisam A,Ismail A,Salim R.Behaviours of natural organic matter in membrane filtration for surface water treatment-a review[J].Desalination,2006,194(1):211-231.
[13]Hollender J,Zimmermann S G,Koepke S,et al.Elimination of organic micropollutants in a municipal wastewater treatment plant upgraded with a full-scale post-ozonation followed by sand filtration[J].Environ Sci Technol,2009,43(20):7862-7869.
[14]Ndiaye P,Moulin P,Dominguez L,et al.Removal of fluoride from electronic industrial effluentby ROmembrane separation[J].Desalination,2005,173(1):25-32.
[15]Kota A K,Kwon G,Choi W,et al.Hygro-responsive membranes for effective oil-water separation[J].Nat Commun,2012,DOI:10.1038/ncomms2027.
[16]Lin S H,Peng C F.Continuous treatment of textile wastewater by combined coagulation,electrochemical oxidation and activated sludge[J].Water Res,1996,30(3):587-592.
[17]Verma A K,Dash R R,Bhunia P.A review on chemical coagulation/flocculation technologies for removal of colour from textile wastewaters[J].J Environ Manage,2012,93(1):154-168.
[18]Jorgensen T,Weatherley L.Ammonia removal from wastewater by ion exchange in the presence of organic contaminants[J].Water Res,2003,37(8):1723-1728.
[19]Raghu S,Basha C A.Chemical or electrochemical techniques,followed by ion exchange,for recycle of textile dye wastewater[J].J Hazard Mater,2007,149(2):324-330.
[20]Huber M M,G?bel A,Joss A,et al.Oxidation of pharmaceuticals during ozonation of municipal wastewater effluents:a pilot study[J].Environ Sci Technol,2005,39(11):4290-4299.
[21]Chatterjee D,Rothbart S,Eldik R.Substrate versus oxidant activation in RuⅢ(edta)catalyzed dye degradation[J].RSC Adv,2013,3(11):3606-3610.
[22]Fan L,Ni J,Wu Y,et al.Treatment of bromoamine acid wastewater using combined process of micro-electrolysis and biological aerobic filter[J].J Hazard Mater,2009,162(2):1204-1210.
[23]Reyter D,Bélanger D,RouéL.Nitrate removal by a paired electrolysis on copper and Ti/IrO2 coupled electrodesinfluence of the anode/cathode surface area ratio[J].Water Res,2010,44(6):1918-1926.
[24]Bhatnagar A,Kumar E,Sillanp??M.Fluoride removal from water by adsorption-a review[J].Chem Eng J,2011,171(3):811-840.
[25]Cao C Y,Qu J,Yan W S,et al.Low-cost synthesis of flowerlike a-Fe2O3 nanostructures for heavy metal ion removal:adsorption property and mechanism[J].Langmuir,2012,28(9):4573-4579.
[26]Yu X,Tong S,Ge M,et al.One-step synthesis of magnetic composites of cellulose@iron oxide nanoparticles for arsenic removal[J].J Mater Chem A,2013,DOI:10.1039/c2ta00315e.
[27]Li W,Cao C Y,Wu L Y,et al.Superb fluoride and arsenic removal performance of highly ordered mesoporous aluminas[J].J Hazard Mater,2011,198:143-150.
[28]Zhong L S,Hu J S,Liang H P,et al.Self-Assembled 3Dflowerlike iron oxide nanostructures and their application in water treatment[J].Adv Mater,2006,18(18):2426-2431.
[29]Cao C Y,Qu J,Wei F,et al.Superb adsorption capacity and mechanism of flowerlike magnesium oxide nanostructures for lead and cadmium ions[J].ACS Appl Mater Interfaces,2012,4(8):4283-4287.
[30]Chen L,He S,He B Y,et al.Synthesis of iron-doped titanium oxide nanoadsorbent and its adsorption characteristics for fluoride in drinking water[J].Ind Eng Chem Res,2012,51(40):13150-13156.
[31]Ma R,Levard C,Judy J D,et al.Fate of zinc oxide and silver nanoparticles in a pilot wastewater treatment plant and in processed biosolids[J].Environ Sci Technol,2013,48(1):104-112.
[32]Chandra V,Park J,Chun Y,et al.Water-dispersible magnetite-reduced graphene oxide composites for arsenic removal[J].ACS Nano,2010,4(7):3979-3986.
[33]Lu W,Gao S,Wang J.One-pot synthesis of Ag/ZnOself-assembled 3D hollow microspheres with enhanced photocatalytic performance[J].J Phys Chem C,2008,112(43):16792-16800.
[34]Wang Y,Zou B,Gao T,et al.Synthesis of orange-like Fe3O4/PPy composite microspheres and their excellent Cr(VI)ion removal properties[J].J Mater Chem,2012,22(18):9034-9040.
[35]Kang D,Tong S,Yu X,et al.Template-free synthesis of3D hierarchical amorphous aluminum oxide microspheres with broccoli-like structure and their application in fluoride removal[J].RSC Adv,2015,5(25):19159-19165.
[36]Kang D,Yu X,Ge M,et al.One-step fabrication and characterization of hierarchical MgFe2O4 microspheres and their application for lead removal[J].Micropor Mesopor Mater,2015,207:170-178.
[37]Mohan D,Singh K P.Single-and multi-component adsorption of cadmium and zinc using activated carbon derived from bagasse-an agricultural waste[J].Water Res,2002,36(9):2304-2318.
[38]Pan B,Xing B.Adsorption mechanisms of organic chemicals on carbon nanotubes[J].Environ Sci Technol,2008,42(24):9005-9013.
[39]Yang X,Zhen M,Li G,et al.Preparation of Pddecorated fullerenols on carbon nanotubes with excellent electrocatalytic properties in alkaline media[J].J Mater Chem A,2013,DOI:10.1039/c3ta11907f.
[40]Kang D,Yu X,Tong S,et al.Performance and mechanism of Mg/Fe layered double hydroxides for fluoride and arsenate removal from aqueous solution[J].Chem Eng J,2013:228,731-740.
[41]Xiong R,Wang Y,Zhang X,et al.Facile synthesis of magnetic nanocomposites of cellulose@ultrasmall iron oxide nanoparticles for water treatment[J].RSC Adv,2014,4(43):22632-22641.
[42]Yu X,Kang D,Hu Y,et al.One-pot synthesis of porous magnetic cellulose beads for the removal of metal ions[J].RSC Adv,2014,4(59):31362-31369.
[43]Tian Y,Wu M,Lin X,et al.Synthesis of magnetic wheat straw for arsenic adsorption[J].J Hazard Mater,2011,193:10-16.
[44]Liu R,Yu H,Huang Y.Structure and morphology of cellulose in wheat straw[J].Cellulose,2005,12(1):25-34.
[45]Yu H,Liu R,Shen D,et al.Study on morphology and orientation of cellulose in the vascular bundle of wheat straw[J].Polymer,2005,46(15):5689-5694.
[46]Cao M S,Yang J,Song W L,et al.Ferroferric oxide/multiwalled carbon nanotube vs polyaniline/ferroferric oxide/multiwalled carbon nanotube multiheterostructures for highly effective microwave absorption[J].ACS Appl Mater Interfaces,2012,4(12):6949-6956.
[47]Tanada S,Kabayama M,Kawasaki N,et al.Removal of phosphate by aluminum oxide hydroxide[J].J Coll Interf Sci,2003,257(1):135-140.
[48]Deng Y,Qi D,Deng C,et al.Superparamagnetic highmagnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins[J].J Am Chem Soc,2008,130(1):28-29.