Sorption of uranyl ions on TiO_2:Effects of pH,contact time,ionic strength,temperature and HA
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摘要
Sorption of U(VI) onto TiO_2 as functions of pH, ionic strength, contact time, soil humic acid(SHA), solid-to-liquid ratio and temperature was studied under ambient conditions using batch and spectroscopic approaches. The sorption of U(VI) on TiO_2 was significantly dependent on pH and ionic strength. The presence of SHA slightly enhanced the sorption of U(VI) on TiO_2 below pH 4.0, while it inhibited U(VI) sorption in the higher pH range. U(VI)sorption on TiO_2 was favored at high temperatures, and the sorption process was estimated to be endothermic and spontaneous. Reduction of U(VI) to lower valent species was confirmed by X-ray photo-electron spectroscopy analysis. It is very interesting to find that U(VI) sorption on TiO_2 was promoted in solutions with higher back-ground electrolyte concentrations. In the presence of U(VI), higher back-ground electrolyte made more TiO_2 particles aggregate through(001) facets, leading more(101) facets to be exposed. Therefore, the reduction of U(VI) was enhanced by the exposed(101) facets and more U(VI) removal was observed.
Sorption of U(VI) onto TiO_2 as functions of pH, ionic strength, contact time, soil humic acid(SHA), solid-to-liquid ratio and temperature was studied under ambient conditions using batch and spectroscopic approaches. The sorption of U(VI) on TiO_2 was significantly dependent on pH and ionic strength. The presence of SHA slightly enhanced the sorption of U(VI) on TiO_2 below pH 4.0, while it inhibited U(VI) sorption in the higher pH range. U(VI)sorption on TiO_2 was favored at high temperatures, and the sorption process was estimated to be endothermic and spontaneous. Reduction of U(VI) to lower valent species was confirmed by X-ray photo-electron spectroscopy analysis. It is very interesting to find that U(VI) sorption on TiO_2 was promoted in solutions with higher back-ground electrolyte concentrations. In the presence of U(VI), higher back-ground electrolyte made more TiO_2 particles aggregate through(001) facets, leading more(101) facets to be exposed. Therefore, the reduction of U(VI) was enhanced by the exposed(101) facets and more U(VI) removal was observed.
Sorption of U(VI) onto TiO_2 as functions of pH, ionic strength, contact time, soil humic acid(SHA), solid-to-liquid ratio and temperature was studied under ambient conditions using batch and spectroscopic approaches. The sorption of U(VI) on TiO_2 was significantly dependent on pH and ionic strength. The presence of SHA slightly enhanced the sorption of U(VI) on TiO_2 below pH 4.0, while it inhibited U(VI) sorption in the higher pH range. U(VI)sorption on TiO_2 was favored at high temperatures, and the sorption process was estimated to be endothermic and spontaneous. Reduction of U(VI) to lower valent species was confirmed by X-ray photo-electron spectroscopy analysis. It is very interesting to find that U(VI) sorption on TiO_2 was promoted in solutions with higher back-ground electrolyte concentrations. In the presence of U(VI), higher back-ground electrolyte made more TiO_2 particles aggregate through(001) facets, leading more(101) facets to be exposed. Therefore, the reduction of U(VI) was enhanced by the exposed(101) facets and more U(VI) removal was observed.
引文
Bachmaf,S.,Merkel,B.J.,2011.Sorption of uranium(VI)at the clay mineral-water interface.Environ.Earth Sci.63,925-934.
Bonato,M.,Allen,G.C.,Scott,T.B.,2008.Reduction of U(VI)to U(IV)on the surface of TiO2anatase nanotubes.Micro Nano Lett.3,57-61.
Campos,B.,Aguilar-Carrillo,J.,Algarra,M.,Goncalves,M.A.,Rodriguez-Castellon,E.,Bobos,L.L.,2013.Adsorption of uranyl ions on kaolinite,montmorillonite,humic acid and composite clay material.Appl.Clay Sci.85,53-63.
Cao,Q.,Liu,Y.C.,Kong,X.,Zhou,L.Z.,Guo,H.J.,2013.Synthesis of phosphorus-modified poly(styrene-co-divinylbenzene)chelating resin and its adsorption properties of uranium(VI).J.Radioanal.Nucl.Chem.298,1137-1147.
Chen,H.J.,Chen,Z.,Zhao,G.X.,Zhang,Z.B.,Xu,C.,Liu,Y.H.,et al.2018.Enhanced adsorption of U(VI)and241Am(III)from wastewater using Ca/Al layered double hydroxide@carbon nanotube composites.J.Hazard.Mater.347,66-77.
Comarmond,M.J.,Payne,T.E.,Harrison,J.J.,Thiruvoth,S.,Wong,H.K.,Aughterson,R.D.,et al.,2011.Uranium sorption on various forms of titanium dioxide-influence of surface area,surface charge,and impurities.Environ.Sci.Technol.45,5536-5542.
Erden,K.E.,Donat,R.,2017.Removal of thorium(IV)from aqueous solutions by natural sepiolite.Radiochim.Acta 105,187-196.
Fan,Q.H.,Wu,W.S.,Song,X.P.,Xu,J.Z.,Hu,J.,Niu,Z.W.,2008.Effect of humic acid,fulvic acid,pH and temperature on the sorption-desorption of Th(IV)on attapulgite.Radiochim.Acta96,159-165.
Fan,Q.H.,Shao,D.D.,Lu,Y.,Wu,W.S.,Wang,X.K.,2009a.Effect of p H,ionic strength,temperature and humic substances on the sorption of Ni(II)to Na-attapulgite.Chem.Eng.J.150,188-195.
Fan,Q.H.,Tan,X.L.,Li,J.X.,Wang,X.K.,Wu,W.S.,Montavon,G.,2009b.Sorption of Eu(III)on attapulgite studied by batch,XPS,and EXAFS techniques.Environ.Sci.Technol.43,5776-5782.
Fan,F.L.,Qin,Z.,Bai,J.,Rong,W.D.,Fan,F.Y.,Tian,W.,et al.,2012Rapid removal of uranium from aqueous solutions using magnetic Fe3O4@SiO2composite particles.J.Environ.Radioact106,40-46.
Freundlich,H.M.F.,1906.Over the adsorption in solution.J.Phys.Chem.57,385-470.
Gao,L.,Yang,Z.Q.,Shi,K.L.,Wang,X.F.,Guo,Z.J.,Wu,W.S.,2010.U(VI)sorption on kaolinite:effects of p H,U(VI)concentration and oxyanions.J.Radioanal.Nucl.Chem.284,519-526.
Guo,Z.J.,Yan,Z.Y.,Tao,Z.Y.,2004.Sorption of uranyl ions on TiO2 effects of contact time,ionic strength,concentration and humic substance.J.Radioanal.Nucl.Chem.261,157-162.
Guo,Z.J.,Yan,C.,Xu,J.,Wu,W.S.,2009.Sorption of U(VI)and phosphate on gamma-alumina:binary and ternary sorption systems.Colloids Surf.A Physicochem.Eng.Asp.336,123-129.
Ho,Y.S.,Mckay,G.,2000.The kinetics of sorption of divalent metal ions onto sphagnum moss peat.Water Res.34,735-742.
Hu,J.,Chen,C.L.,Sheng,G.D.,Li,J.X.,Chen,Y.X.,Wang,X.K.,2010 Adsorption of Sr(II)and Eu(III)on Na-rectorite:effect of pH,ionic strength,concentration and modeling.Radiochim.Acta98,421-429.
Kowal-Fouchard,A.,Drot,R.,Simoni,E.,Ehrhardt,J.J.,2004.Use of spectroscopic techniques for uranium(VI)/montmorillonite interaction modeling.Environ.Sci.Technol.38,1399-1407.
Krepelova,A.,Reich,T.,Sachs,S.,Drebert,J.,Bernhard,G.,2008.Structural characterization of U(VI)surface complexes on kaolinite in the presence of humic acid using EXAFSspectroscopy.J.Colloid Interface Sci.319,40-47.
Langmuir,I.,1918.The adsorption of gases on plane surfaces of glass,mica and platinum.J.Am.Chem.Soc.40,1361-1403.
Li,K.,Liu,Z.J.,Wen,T.,Chen,L.,Dong,Y.H.,2012.Sorption of radiocobalt(II)onto Ca-montmorillonite:effect of contact time solid content,p H,ionic strength and temperature.J.Radioanal.Nucl.Chem.292,269-276.
Li,P.,Yin,Z.X.,Lin,J.F.,Jin,Q.,Du,Y.F.,Fan,Q.H.,et al.,2014a.The immobilization of U(VI)on iron oxyhydroxides under various physicochemical conditions.Environ.Sci.:Processes Impacts16,2278-2287.
Li,L.,Ding,D.X.,Hu,N.,Fu,P.K.,Xin,X.,Wang,Y.D.,2014b.Adsorption of U(VI)ions from low concentration uranium solution by thermally activated sodium feldspar.J.Radioanal.Nucl.Chem.299,681-690.
Lian,F.,Sun,B.B.,Chen,X.,Zhu,L.Y.,Liu,Z.Q.,Xing,B.S.,2015.Effect of humic acid(HA)on sulfonamide sorption by biochars.Environ.Pollut.204,306-312.
Liu,G.J.,Zhang,X.R.,Mcwilliams,L.,Talley,J.W.,Neal,C.R.,2008.Influence of ionic strength,electrolyte type,and NOM on As(V)adsorption onto TiO2.J.Environ.Sci.Health A 43,430-436.
Liu,H.B.,Zhu,Y.K.,Xu,B.,Li,P.,Sun,Y.B.,Chen,T.H.,2017.Mechanical investigation of U(VI)on pyrrhotite by batch,EXAFS and modeling techniques.J.Hazard.Mater.322,488-498.
Missana,T.,Adell,A.,2000.On the applicability of DLVO theory to the prediction of clay colloids stability.J.Colloid Interface Sci.230,150-156.
Nair,S.,Karimzadeh,L.,Merkel,B.J.,2014.Sorption of uranyl and arsenate on SiO2,Al2O3,TiO2and FeOOH.Environ.Earth Sci.72,3507-3512.
Niu,Z.W.,Fan,Q.H.,Wang,W.H.,Xu,J.Z.,Chen,L.,Wu,W.S.,2009.Effect of p H,ionic strength and humic acid on the sorption of uranium(VI)to attapulgite.Appl.Radiat.Isot.67,1582-1590.
Pan,D.Q.,Fan,Q.H.,Li,P.,Liu,S.P.,Wu,W.S.,2015.Sorption of Th(IV)on Na-bentonite:effects of pH,ionic strength,humic substances and temperature.Chem.Eng.J.172,898-905.
Qian,L.J.,Hu,P.Z.,Jiang,Z.J.,Geng,Y.X.,Wu,W.S.,2010.Effect of pH,fulvic acid and temperature on the sorption of uranyl on ZrP2O7.Sci.China:Chem.53,1429-1437.
Qian,L.P.,Ma,M.H.,Cheng,D.H.,2014.The effect of water chemistry on adsorption and desorption of U(VI)on nano-alumina.J.Mol.Liq.197,295-300.
Ren,X.M.,Wang,S.W.,Yang,S.T.,Li,J.X.,2010.Influence of contact time,p H,soil humic/fulvic acids,ionic strength and temperature on sorption of U(VI)onto MX-80 bentonite.J.Radioanal.Nucl.Chem.283,253-259.
Romuald,D.,Jerome,R.,Eric,S.,2007.Molecular approach of the uranyl/mineral interfacial phenomena.C.R.Chim.10,1078-1091.
Roy,N.,Sohn,Y.,Pradhan,D.,2013.Synergy of low-energy{101}and high-energy{001}TiO2crystal facets for enhanced photocatalysis.ACS Nano 7,2532-2540.
Sheng,G.,Hu,J.,Jin,H.,Yang,S.,Ren,X.,Li,J.,et al.,2010.Effect of humic acid,fulvic acid,pH,ionic strength and temperature on63Ni(II)sorption to MnO2.Radiochim.Acta 98,291-299.
Sheng,G.D.,Hu,J.,Alsaedi,A.,Shammakh,W.,Monaquel,S.,Ye,F.,et al.,2015.Interaction of uranium(VI)with titanate nanotubes by macroscopic and spectroscopic investigation.J.Mol.Liq.212,563-568.
Tan,X.L.,Wang,X.K.,Chen,C.L.,Sun,A.H.,2007.Effect of soil humic and fulvic acids,pH and ionic strength on Th(IV)sorption to TiO2nanoparticles.Appl.Radiat.Isot.65,375-381.
Tan,X.L.,Fan,Q.H.,Wang,X.K.,Grambow,B.,2009a.Eu(III)sorption to TiO2(anatase and rutile):Batch,XPS,and EXAFSstudies.Environ.Sci.Technol.43,3115-3121.
Tan,X.L.,Fang,M.,Li,J.X.,Lu,Y.,Wang,X.K.,2009b.Adsorption of Eu(III)onto TiO2:effect of pH,concentration,ionic strength and soil fulvic acid.J.Hazard.Mater.168,458-465.
Tan,L.Q.,Wang,X.X.,Tan,X.L.,Mei,H.Y.,Chen,C.L.,Hayat,T.,et al.,2017.Bonding properties of humic acid with attapulgite and its influence on U(VI)sorption.Chem.Geol.464,91-100.
Tsai,S.C.,Wang,T.H.,Li,M.H.,Wei,Y.Y.,Teng,S.P.,2009.Cesium adsorption and distribution onto crushed granite under different physicochemical conditions.J.Hazard.Mater.161,854-861.
Vandenborre,J.,2005.Etude multi-échelle des mécanismes d'interaction des ions aquo uranyle avec les surfaces de l'oxyde de titane(poudres et monocristaux).(Ph.D.Thesis).UniversitéParis Sud-Paris XI.
Wang,P.Y.,Yin,L.,Wang,J.,Xu,C.,Liang,Y.,Yao,W.,et al.,2017a Superior immobilization of U(VI)and243Am(III)on polyethyleneimine modified lamellar carbon nitride composite from water environment.Chem.Eng.J.326,863-874.
Wang,J.Q.,Chen,Z.,Shao,D.D.,Li,Y.Y.,Xu,Z.M.,Cheng,C.,et al.2017b.Adsorption of U(VI)on bentonite in simulation environmental conditions.J.Mol.Liq.242,678-684.
Weng,C.H.,Wang,J.H.,Huang,C.P.,1997.Adsorption of Cr(VI)onto Ti O2from dilute aqueous solutions.Water Sci.Technol.35,55-62.
Xu,D.,Chen,C.L.,Tan,X.L.,Hu,J.,Wang,X.K.,2007.Sorption of Th(IV)on Na-rectorite:Effect of HA,ionic strength,foreign ions and temperature.Appl.Geochem.22,2892-2906.
Yan,L.,Hu,S.,Jing,C.Y.,2016.Recent progress of arsenic adsorption on TiO2in the presence of coexisting ions:a review J.Environ.Sci.49,74-85.
Yao,W.,Wang,X.X.,Liang,Y.,Yu,S.J.,Gu,P.C.,Sun,Y.B.,et al.,2018.Synthesis of novel flower-like layered double oxides/carbon dots nanocomposites for U(VI)and241Am(III)efficient removal:batch and EXAFS studies.Chem.Eng.J.332,775-786.
Ye,Y.L.,Qiao,Y.H.,Wang,L.,Liu,F.D.,Guo,Z.J.,Wu,W.S.,et al.,2016.Surface complexation modeling of U(VI)sorption on TiO2in the presence of fulvic acid.Radiochim.Acta 104,85-95.
Yin,L.,Wang,P.Y.,Wen,T.,Yu,S.J.,Wang,X.X.,Hayat,T.,et al.,2017.Synthesis of layered titanate nanowires at low temperature and their application in efficient removal of U(VI).Environ.Pollut.226,125-134.
Zhang,J.H.,He,M.C.,2013.Effect of dissolved organic matter on sorption and desorption of phenanthrene onto black carbon.J.Environ.Sci.25,2378-2383.
Zhu,Y.K.,Chen,T.H.,Liu,H.B.,Xu,B.,Xie,J.J.,2016.Kinetics and thermodynamics of Eu(III)and U(VI)adsorption onto palygorskite.J.Mol.Liq.219,272-278.
Bonato,M.,Allen,G.C.,Scott,T.B.,2008.Reduction of U(VI)to U(IV)on the surface of TiO2anatase nanotubes.Micro Nano Lett.3,57-61.
Campos,B.,Aguilar-Carrillo,J.,Algarra,M.,Goncalves,M.A.,Rodriguez-Castellon,E.,Bobos,L.L.,2013.Adsorption of uranyl ions on kaolinite,montmorillonite,humic acid and composite clay material.Appl.Clay Sci.85,53-63.
Cao,Q.,Liu,Y.C.,Kong,X.,Zhou,L.Z.,Guo,H.J.,2013.Synthesis of phosphorus-modified poly(styrene-co-divinylbenzene)chelating resin and its adsorption properties of uranium(VI).J.Radioanal.Nucl.Chem.298,1137-1147.
Chen,H.J.,Chen,Z.,Zhao,G.X.,Zhang,Z.B.,Xu,C.,Liu,Y.H.,et al.2018.Enhanced adsorption of U(VI)and241Am(III)from wastewater using Ca/Al layered double hydroxide@carbon nanotube composites.J.Hazard.Mater.347,66-77.
Comarmond,M.J.,Payne,T.E.,Harrison,J.J.,Thiruvoth,S.,Wong,H.K.,Aughterson,R.D.,et al.,2011.Uranium sorption on various forms of titanium dioxide-influence of surface area,surface charge,and impurities.Environ.Sci.Technol.45,5536-5542.
Erden,K.E.,Donat,R.,2017.Removal of thorium(IV)from aqueous solutions by natural sepiolite.Radiochim.Acta 105,187-196.
Fan,Q.H.,Wu,W.S.,Song,X.P.,Xu,J.Z.,Hu,J.,Niu,Z.W.,2008.Effect of humic acid,fulvic acid,pH and temperature on the sorption-desorption of Th(IV)on attapulgite.Radiochim.Acta96,159-165.
Fan,Q.H.,Shao,D.D.,Lu,Y.,Wu,W.S.,Wang,X.K.,2009a.Effect of p H,ionic strength,temperature and humic substances on the sorption of Ni(II)to Na-attapulgite.Chem.Eng.J.150,188-195.
Fan,Q.H.,Tan,X.L.,Li,J.X.,Wang,X.K.,Wu,W.S.,Montavon,G.,2009b.Sorption of Eu(III)on attapulgite studied by batch,XPS,and EXAFS techniques.Environ.Sci.Technol.43,5776-5782.
Fan,F.L.,Qin,Z.,Bai,J.,Rong,W.D.,Fan,F.Y.,Tian,W.,et al.,2012Rapid removal of uranium from aqueous solutions using magnetic Fe3O4@SiO2composite particles.J.Environ.Radioact106,40-46.
Freundlich,H.M.F.,1906.Over the adsorption in solution.J.Phys.Chem.57,385-470.
Gao,L.,Yang,Z.Q.,Shi,K.L.,Wang,X.F.,Guo,Z.J.,Wu,W.S.,2010.U(VI)sorption on kaolinite:effects of p H,U(VI)concentration and oxyanions.J.Radioanal.Nucl.Chem.284,519-526.
Guo,Z.J.,Yan,Z.Y.,Tao,Z.Y.,2004.Sorption of uranyl ions on TiO2 effects of contact time,ionic strength,concentration and humic substance.J.Radioanal.Nucl.Chem.261,157-162.
Guo,Z.J.,Yan,C.,Xu,J.,Wu,W.S.,2009.Sorption of U(VI)and phosphate on gamma-alumina:binary and ternary sorption systems.Colloids Surf.A Physicochem.Eng.Asp.336,123-129.
Ho,Y.S.,Mckay,G.,2000.The kinetics of sorption of divalent metal ions onto sphagnum moss peat.Water Res.34,735-742.
Hu,J.,Chen,C.L.,Sheng,G.D.,Li,J.X.,Chen,Y.X.,Wang,X.K.,2010 Adsorption of Sr(II)and Eu(III)on Na-rectorite:effect of pH,ionic strength,concentration and modeling.Radiochim.Acta98,421-429.
Kowal-Fouchard,A.,Drot,R.,Simoni,E.,Ehrhardt,J.J.,2004.Use of spectroscopic techniques for uranium(VI)/montmorillonite interaction modeling.Environ.Sci.Technol.38,1399-1407.
Krepelova,A.,Reich,T.,Sachs,S.,Drebert,J.,Bernhard,G.,2008.Structural characterization of U(VI)surface complexes on kaolinite in the presence of humic acid using EXAFSspectroscopy.J.Colloid Interface Sci.319,40-47.
Langmuir,I.,1918.The adsorption of gases on plane surfaces of glass,mica and platinum.J.Am.Chem.Soc.40,1361-1403.
Li,K.,Liu,Z.J.,Wen,T.,Chen,L.,Dong,Y.H.,2012.Sorption of radiocobalt(II)onto Ca-montmorillonite:effect of contact time solid content,p H,ionic strength and temperature.J.Radioanal.Nucl.Chem.292,269-276.
Li,P.,Yin,Z.X.,Lin,J.F.,Jin,Q.,Du,Y.F.,Fan,Q.H.,et al.,2014a.The immobilization of U(VI)on iron oxyhydroxides under various physicochemical conditions.Environ.Sci.:Processes Impacts16,2278-2287.
Li,L.,Ding,D.X.,Hu,N.,Fu,P.K.,Xin,X.,Wang,Y.D.,2014b.Adsorption of U(VI)ions from low concentration uranium solution by thermally activated sodium feldspar.J.Radioanal.Nucl.Chem.299,681-690.
Lian,F.,Sun,B.B.,Chen,X.,Zhu,L.Y.,Liu,Z.Q.,Xing,B.S.,2015.Effect of humic acid(HA)on sulfonamide sorption by biochars.Environ.Pollut.204,306-312.
Liu,G.J.,Zhang,X.R.,Mcwilliams,L.,Talley,J.W.,Neal,C.R.,2008.Influence of ionic strength,electrolyte type,and NOM on As(V)adsorption onto TiO2.J.Environ.Sci.Health A 43,430-436.
Liu,H.B.,Zhu,Y.K.,Xu,B.,Li,P.,Sun,Y.B.,Chen,T.H.,2017.Mechanical investigation of U(VI)on pyrrhotite by batch,EXAFS and modeling techniques.J.Hazard.Mater.322,488-498.
Missana,T.,Adell,A.,2000.On the applicability of DLVO theory to the prediction of clay colloids stability.J.Colloid Interface Sci.230,150-156.
Nair,S.,Karimzadeh,L.,Merkel,B.J.,2014.Sorption of uranyl and arsenate on SiO2,Al2O3,TiO2and FeOOH.Environ.Earth Sci.72,3507-3512.
Niu,Z.W.,Fan,Q.H.,Wang,W.H.,Xu,J.Z.,Chen,L.,Wu,W.S.,2009.Effect of p H,ionic strength and humic acid on the sorption of uranium(VI)to attapulgite.Appl.Radiat.Isot.67,1582-1590.
Pan,D.Q.,Fan,Q.H.,Li,P.,Liu,S.P.,Wu,W.S.,2015.Sorption of Th(IV)on Na-bentonite:effects of pH,ionic strength,humic substances and temperature.Chem.Eng.J.172,898-905.
Qian,L.J.,Hu,P.Z.,Jiang,Z.J.,Geng,Y.X.,Wu,W.S.,2010.Effect of pH,fulvic acid and temperature on the sorption of uranyl on ZrP2O7.Sci.China:Chem.53,1429-1437.
Qian,L.P.,Ma,M.H.,Cheng,D.H.,2014.The effect of water chemistry on adsorption and desorption of U(VI)on nano-alumina.J.Mol.Liq.197,295-300.
Ren,X.M.,Wang,S.W.,Yang,S.T.,Li,J.X.,2010.Influence of contact time,p H,soil humic/fulvic acids,ionic strength and temperature on sorption of U(VI)onto MX-80 bentonite.J.Radioanal.Nucl.Chem.283,253-259.
Romuald,D.,Jerome,R.,Eric,S.,2007.Molecular approach of the uranyl/mineral interfacial phenomena.C.R.Chim.10,1078-1091.
Roy,N.,Sohn,Y.,Pradhan,D.,2013.Synergy of low-energy{101}and high-energy{001}TiO2crystal facets for enhanced photocatalysis.ACS Nano 7,2532-2540.
Sheng,G.,Hu,J.,Jin,H.,Yang,S.,Ren,X.,Li,J.,et al.,2010.Effect of humic acid,fulvic acid,pH,ionic strength and temperature on63Ni(II)sorption to MnO2.Radiochim.Acta 98,291-299.
Sheng,G.D.,Hu,J.,Alsaedi,A.,Shammakh,W.,Monaquel,S.,Ye,F.,et al.,2015.Interaction of uranium(VI)with titanate nanotubes by macroscopic and spectroscopic investigation.J.Mol.Liq.212,563-568.
Tan,X.L.,Wang,X.K.,Chen,C.L.,Sun,A.H.,2007.Effect of soil humic and fulvic acids,pH and ionic strength on Th(IV)sorption to TiO2nanoparticles.Appl.Radiat.Isot.65,375-381.
Tan,X.L.,Fan,Q.H.,Wang,X.K.,Grambow,B.,2009a.Eu(III)sorption to TiO2(anatase and rutile):Batch,XPS,and EXAFSstudies.Environ.Sci.Technol.43,3115-3121.
Tan,X.L.,Fang,M.,Li,J.X.,Lu,Y.,Wang,X.K.,2009b.Adsorption of Eu(III)onto TiO2:effect of pH,concentration,ionic strength and soil fulvic acid.J.Hazard.Mater.168,458-465.
Tan,L.Q.,Wang,X.X.,Tan,X.L.,Mei,H.Y.,Chen,C.L.,Hayat,T.,et al.,2017.Bonding properties of humic acid with attapulgite and its influence on U(VI)sorption.Chem.Geol.464,91-100.
Tsai,S.C.,Wang,T.H.,Li,M.H.,Wei,Y.Y.,Teng,S.P.,2009.Cesium adsorption and distribution onto crushed granite under different physicochemical conditions.J.Hazard.Mater.161,854-861.
Vandenborre,J.,2005.Etude multi-échelle des mécanismes d'interaction des ions aquo uranyle avec les surfaces de l'oxyde de titane(poudres et monocristaux).(Ph.D.Thesis).UniversitéParis Sud-Paris XI.
Wang,P.Y.,Yin,L.,Wang,J.,Xu,C.,Liang,Y.,Yao,W.,et al.,2017a Superior immobilization of U(VI)and243Am(III)on polyethyleneimine modified lamellar carbon nitride composite from water environment.Chem.Eng.J.326,863-874.
Wang,J.Q.,Chen,Z.,Shao,D.D.,Li,Y.Y.,Xu,Z.M.,Cheng,C.,et al.2017b.Adsorption of U(VI)on bentonite in simulation environmental conditions.J.Mol.Liq.242,678-684.
Weng,C.H.,Wang,J.H.,Huang,C.P.,1997.Adsorption of Cr(VI)onto Ti O2from dilute aqueous solutions.Water Sci.Technol.35,55-62.
Xu,D.,Chen,C.L.,Tan,X.L.,Hu,J.,Wang,X.K.,2007.Sorption of Th(IV)on Na-rectorite:Effect of HA,ionic strength,foreign ions and temperature.Appl.Geochem.22,2892-2906.
Yan,L.,Hu,S.,Jing,C.Y.,2016.Recent progress of arsenic adsorption on TiO2in the presence of coexisting ions:a review J.Environ.Sci.49,74-85.
Yao,W.,Wang,X.X.,Liang,Y.,Yu,S.J.,Gu,P.C.,Sun,Y.B.,et al.,2018.Synthesis of novel flower-like layered double oxides/carbon dots nanocomposites for U(VI)and241Am(III)efficient removal:batch and EXAFS studies.Chem.Eng.J.332,775-786.
Ye,Y.L.,Qiao,Y.H.,Wang,L.,Liu,F.D.,Guo,Z.J.,Wu,W.S.,et al.,2016.Surface complexation modeling of U(VI)sorption on TiO2in the presence of fulvic acid.Radiochim.Acta 104,85-95.
Yin,L.,Wang,P.Y.,Wen,T.,Yu,S.J.,Wang,X.X.,Hayat,T.,et al.,2017.Synthesis of layered titanate nanowires at low temperature and their application in efficient removal of U(VI).Environ.Pollut.226,125-134.
Zhang,J.H.,He,M.C.,2013.Effect of dissolved organic matter on sorption and desorption of phenanthrene onto black carbon.J.Environ.Sci.25,2378-2383.
Zhu,Y.K.,Chen,T.H.,Liu,H.B.,Xu,B.,Xie,J.J.,2016.Kinetics and thermodynamics of Eu(III)and U(VI)adsorption onto palygorskite.J.Mol.Liq.219,272-278.