γ-AlOOH/Al_2O_3修饰硅藻土的制备与Cs~+、Pb~(2+)吸附性能
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摘要
以结晶氯化铝(AlC l3·6H2O)作为铝源,十二烷基苯磺酸钠(SDBS)为模板剂,采用水热法在硅藻土盘上制备了束状纳米结构γ-AlO OH/Al2O3复合吸附剂。采用XRD、SEM、TEM、TG/DSC、N2吸脱附等对样品进行了表征。研究了样品对133Cs+及Pb2+的吸附能力。研究表明,样品γ-AlO OH/硅藻土、γ-Al2O3/硅藻土对Cs+及Pb2+均具有良好的吸附性能,两者对Cs+的去除率分别为98.9%和99.6%;对Pb2+的最大吸附量分别为357.1、416.7 mg·g-1。两种样品对Pb2+的吸附均符合Langmuir吸附模型。
The composite adsorption materials modified by wispy nanostructure γ-AlO OH or γ-Al2O3 were prepared via one-step hydrothermal method by using crystalline aluminum chloride(AlC l3·6H2O) as the resource of aluminum, sodium dodecylbenzenesulfonate(SDBS) as template and diatomite as the substrate. The as-prepared samples were characterized by X-ray diffraction(XRD), scanning electron microscope(SEM), transmission electron microscope(TEM), thermogravimetric analysis/differential scanning calorimetry(TG/DSC), and N2adsorption-desorption measurement. The adsorption capacity for Cs+and Pb2+of the samples were investigated. It was found that the samples showed superb adsorption properties for Cs+and Pb2+. The maximal removal efficiency of the γ-AlO OH/diatomite and γ-Al2O3/diatomite for Cs+were 98.9 and 99.6%, respectively, and the maximum adsorption capacities for Pb2+were 357.1 and 416.7 mg·g-1, respectively. Both of the adsorption models for Pb2+were consistent with the Langmuir adsorption model.
The composite adsorption materials modified by wispy nanostructure γ-AlO OH or γ-Al2O3 were prepared via one-step hydrothermal method by using crystalline aluminum chloride(AlC l3·6H2O) as the resource of aluminum, sodium dodecylbenzenesulfonate(SDBS) as template and diatomite as the substrate. The as-prepared samples were characterized by X-ray diffraction(XRD), scanning electron microscope(SEM), transmission electron microscope(TEM), thermogravimetric analysis/differential scanning calorimetry(TG/DSC), and N2adsorption-desorption measurement. The adsorption capacity for Cs+and Pb2+of the samples were investigated. It was found that the samples showed superb adsorption properties for Cs+and Pb2+. The maximal removal efficiency of the γ-AlO OH/diatomite and γ-Al2O3/diatomite for Cs+were 98.9 and 99.6%, respectively, and the maximum adsorption capacities for Pb2+were 357.1 and 416.7 mg·g-1, respectively. Both of the adsorption models for Pb2+were consistent with the Langmuir adsorption model.
引文
[1]Dumat C,Staunton S.J.Environ.Radioact.,1999,46(2):187-200
[2]Long H,Wu P X,Yang L,et al.J.Colloid Interface Sci.,2014,428:295-301
[3]Wang L X,Li J C,Jiang Q,et al.Dalton Trans.,2012,41:4544-4551
[4]Cheng K,Zhou Y M,Sun Z Y,et al.Dalton Trans.,2012,41:5854-5861
[5]Das N,Jana R K.J.Colloid Interface Sci.,2005,293:254-262
[6]Mabrouk E,Mourad B.J.Hazard.Mater.,2010,178:753-757
[7]ZHAI Shang-Ru(翟尚儒),LI Ming-Hui(李明慧),KOU ZiNong(寇自农),et al.Chinese J.Inorg.Chem.(无机化学学报),2011,27(7):1271-1276
[8]Du Y C,Yan J,Meng Q,et al.Mater.Chem.Phys.,2012,133:907-912
[9]WANG Jun(王珺),CAI Wei-Quan(蔡卫权),WU Xuan-Jun(吴选军).Chinese J.Inorg.Chem.(无机化学学报),2014,30(11):2564-2570
[10]Cao C Y,Qu J,Yan W S,et al.Langmuir,2012,28:4573-4579
[11]Wang B,Wu H B,Yu L,et al.Adv.Mater.,2012,24:1111-1116
[12]DU Yu-Cheng(杜玉成),YAN Jing(颜晶),MENG Qi(孟琪),et al.Chinese J.Inorg.Mater.(无机材料学报),2011,26(10):1031-1036
[13]Tian P,Han X Y,Ning G L,et al.ACS Appl.Mater.Inter.,2013,5:12411-12418
[14]Du Y C,Shi S L,He H,et al.Particuology,2011,9:63-68
[15]Huo Q S,David I M,Ulrike C,et al.Chem.Mater.,1994,6:1176-1191
[16]Cai W Q,Yu J G,Jaroniec M.J.Mater.Chem.,2010,20:4587-4594
[17]Cai W Q,Yu J G,Cheng B,et al.J.Phys.Chem.C,2009,113:14739-14746
[18]Ramesh A,Hasegawa H,Maki T,et al.Sep.Purif.Technol.,2007,56:90-100
[19]Pimolpun K,Pitt S.ACS Appl.Mater.Inter.,2010,12(2):3619-3627
[20]Jain M,Garg V K,Kadirvelu K.J.Hazard.Mater.,2009,162(115):365-372
[21]Wang H,Yuan X Z,Wu Y,et al.Appl.Surf.Sci.,2013,279:432-440
[22]María M A,L S M,M A T,et al.Colloid.Surf.B,2013,110:305-312
[23]Mabrouk E,Mourad B.J.Hazard.Mater.,2010,178:753-757
[24]Zhang Y X,Jia Y,Jin Z,et al.Cryst Eng Comm,2012,14:3005-3007
[25]ZHAO Xiu-Qiao(赵秀巧),DONG Li-Jun(董丽君),CAO Yue(操越),et al.Chinese J.Inorg.Chem.(无机化学学报),2013,29(4):817-825
[26]Yang X L,Wang X Y,Feng Y Q,et al.J.Mater.Chem.A,2013,1:473-477
[27]Mahmoud G A.Monatsh.Chem.,2013,144:1097-1106
[28]Rout M K,Mohapatra,Anand S.Dalton Trans.,2012,41:3302-3312
[2]Long H,Wu P X,Yang L,et al.J.Colloid Interface Sci.,2014,428:295-301
[3]Wang L X,Li J C,Jiang Q,et al.Dalton Trans.,2012,41:4544-4551
[4]Cheng K,Zhou Y M,Sun Z Y,et al.Dalton Trans.,2012,41:5854-5861
[5]Das N,Jana R K.J.Colloid Interface Sci.,2005,293:254-262
[6]Mabrouk E,Mourad B.J.Hazard.Mater.,2010,178:753-757
[7]ZHAI Shang-Ru(翟尚儒),LI Ming-Hui(李明慧),KOU ZiNong(寇自农),et al.Chinese J.Inorg.Chem.(无机化学学报),2011,27(7):1271-1276
[8]Du Y C,Yan J,Meng Q,et al.Mater.Chem.Phys.,2012,133:907-912
[9]WANG Jun(王珺),CAI Wei-Quan(蔡卫权),WU Xuan-Jun(吴选军).Chinese J.Inorg.Chem.(无机化学学报),2014,30(11):2564-2570
[10]Cao C Y,Qu J,Yan W S,et al.Langmuir,2012,28:4573-4579
[11]Wang B,Wu H B,Yu L,et al.Adv.Mater.,2012,24:1111-1116
[12]DU Yu-Cheng(杜玉成),YAN Jing(颜晶),MENG Qi(孟琪),et al.Chinese J.Inorg.Mater.(无机材料学报),2011,26(10):1031-1036
[13]Tian P,Han X Y,Ning G L,et al.ACS Appl.Mater.Inter.,2013,5:12411-12418
[14]Du Y C,Shi S L,He H,et al.Particuology,2011,9:63-68
[15]Huo Q S,David I M,Ulrike C,et al.Chem.Mater.,1994,6:1176-1191
[16]Cai W Q,Yu J G,Jaroniec M.J.Mater.Chem.,2010,20:4587-4594
[17]Cai W Q,Yu J G,Cheng B,et al.J.Phys.Chem.C,2009,113:14739-14746
[18]Ramesh A,Hasegawa H,Maki T,et al.Sep.Purif.Technol.,2007,56:90-100
[19]Pimolpun K,Pitt S.ACS Appl.Mater.Inter.,2010,12(2):3619-3627
[20]Jain M,Garg V K,Kadirvelu K.J.Hazard.Mater.,2009,162(115):365-372
[21]Wang H,Yuan X Z,Wu Y,et al.Appl.Surf.Sci.,2013,279:432-440
[22]María M A,L S M,M A T,et al.Colloid.Surf.B,2013,110:305-312
[23]Mabrouk E,Mourad B.J.Hazard.Mater.,2010,178:753-757
[24]Zhang Y X,Jia Y,Jin Z,et al.Cryst Eng Comm,2012,14:3005-3007
[25]ZHAO Xiu-Qiao(赵秀巧),DONG Li-Jun(董丽君),CAO Yue(操越),et al.Chinese J.Inorg.Chem.(无机化学学报),2013,29(4):817-825
[26]Yang X L,Wang X Y,Feng Y Q,et al.J.Mater.Chem.A,2013,1:473-477
[27]Mahmoud G A.Monatsh.Chem.,2013,144:1097-1106
[28]Rout M K,Mohapatra,Anand S.Dalton Trans.,2012,41:3302-3312