环境竞争离子对纳米TiO_2表面吸附态砷脱附行为的影响
详细信息 查看官网全文
摘要
本文研究了在不同pH条件下,环境竞争离子(磷酸根和硫酸根)对纳米TiO_2表面吸附态砷脱附行为的影响。研究结果表明,磷酸根显著影响五价砷(As(V))在纳米TiO_2表面的脱附行为。磷酸根的浓度从10uM增加到240uM,溶液中As(V)的脱附浓度从0.8mg/L增加到7.8mg/L。加入磷酸根后,溶液pH对As(V)的脱附影响明显,As(V)脱附率顺序为pH9>pH8>pH7>pH6。同时,磷酸根在纳米TiO_2表面发生了吸附行为,吸附率在27%~48%之间。硫酸根离子也对As(V)的脱附有影响。加入硫酸根后,As(V)脱附率的大小为pH7>pH8>pH9>pH6,在pH7时,脱附率达到最大值69%。此外,纳米TiO_2对硫酸根也存在着吸附行为,吸附率在20%~45%之间。
引文
[1]J.F.Ferguson and J.Gavis,A review of the arsenic cycle in natural waters,Water Res.,vol.6,pp.1259–1274,November 1972.
[2]P.L.Smedley and D.G.Kinniburgh,A review of the source,behaviour and distribution of arsenic in natural waters,Appl.Geochem.,vol.17,pp.517–568,May 2002.
[3]S.Fendorf,H.A.Michael,and A.van Geen,Spatial and temporal variations of groundwater arsenic in south and southeast Asia,Science,vol.328,pp.1123–1127,May 2010.
[4]T.Luo,J.Cui,S.Hu,Y.Huang,and C.Jing,Arsenic removal and recovery from copper smelting wastewater using Ti O2,Environ.Sci.Technol.,vol.44,pp.9094-9098,December 2010.
[5]G.Jegadeesan,S.R.Al-Abed,V.Sundaram,H.Choi,K.G.Scheckel,and D.D.Dionysiou,Arsenic sorption on Ti O2 nanoparticles:size and crystallinity effects,Water Res.,vol.44,pp.965–973,February 2010.
[6]M.Pena,G.P.Korfiatis,M.Patel,L.Lippincott,and X.Meng,Adsorption of As(V)and As(III)by nanocrystalline titanium dioxide,Water Res.,vol.39,pp.2327–2337,June 2005.
[7]M.Pena,X.Meng,G.P.Korfiatis,C.Jing,Adsorption mechanism of arsenic on nanocrystalline titanium dioxide,Environ.Sci.Technol.,vol.40,pp.1257–1262,January 2006.
[8]S.R.Kanel,B.Manning,L.Charlet,and H.Choi,Removal of arsenic(III)from groundwater by nanoscale zero-valent iron,Environ.Sci.Technol.,vol.39,pp.1291–1298,January 2005.
[9]E.A.Deliyanni,D.N.Bakoyannakis,A.I.Zouboulis,and K.A.Matis,Sorption of As(V)ions by akaganeite-type nanocrystals,Chemosphere,vol.50,pp.155–163,January 2003.
[10]J.T.Mayo,C.Yavuz,S.Yean,L.Cong,H.Shipley,W.Yu,J.Falkner,A.Kan,M.Tomson,and V.L.Colvin,The effect of nanocrystalline magnetite size on arsenic removal,Sci.Technol.Adv.Mat.,vol.8,pp.71–75,December 2007.
[11]T.Tuutij?rvi,J.Lu,M.Sillanp??,and G.Chen,As(V)adsorption on maghemite nanoparticles,J.Hazard.Mater.,vol.166,pp.1415–1420,July2009.
[12]C.Jing,X.Meng,E.Calvache,and G.Jiang.Remediation of organic and inorganic arsenic contaminated groundwater using a nanocrystalline Ti O2-based adsorbent,Environ.Pollut.,vol.157,pp.2514–2519,August–September 2009.
[13]L.Charlet and D.A.Polya.Arsenic in shallow,reducing groundwaters in southern Asia:an environmental health disaster,Elements,vol.2,pp.91–96,April 2006.
[14]S.Goldberg,Competitive adsorption of arsenate and arsenite on oxides and clay minerals,Soil Sci.Soc.Am.J.,vol.6,pp.161–182,1999.
[15]A.Jain and R.H.Loeppert,Effect of competing anions on the adsorption of arsenate and arsenite by ferrihydrite,J.Environ.Qual.,vol.29,pp.1422–1430,January,2000.
[16]X.Meng,S.Bang,and G.P.Korfiatis,Effects of silicate,sulfate,and carbonate on arsenic removal by ferric chloride,Water Res.,vol.34,pp.1255–1261,March 2000.
[17]Y.Jeong,F.Maohong,J.Van Leeuwen,and J.F.Belczyk,Effect of competing solutes on arsenic(V)adsorption using iron and aluminum oxides,J.Environ.Sci.,vol.19,pp.910–919,2007.
[18]S.E.O’Reilly,D.G.Strawn,and D.L.Sparks,Residence time effects on arsenate adsorption/desorption mechanisms on goethite,Soil Sci.Soc.Am.J.,vol.65,pp.67–77,2001.
[19]Z.Hongshao and R.Stanforth,Competitive adsorption of phosphate and arsenate on goethite,Environ.Sci.Technol.,vol.35,pp.4753–4757,November 2001.
[20]周娟娟,高超,李忠佩,王登峰.磷对土壤As(V)固定与活化的影响.土壤,37(6):645–648,2005.
[21]T.Kinjo and P.F.Pratt,Nitrate adsorption:II.competition with chloride,sulphate and phosphate,Soil.Sci.Soc.Am.Proc.,vol.32,pp.725–728,1971.
[22]F.Frau,R.Biddau,and L.Fanfani,Effect of major anions on arsenate desorption from ferrihydrite-bearing natural samples,Appl.Geochem.,vol.23,pp.1451–1466,June 2008.
[23]T.Tuutij?rvi,E.Repo,R.Vahala,M.Sillanp??,and G.Chen,Effect of competing anions on arsenate adsorption onto maghemite nanoparticles,Chinese.J.Chem.Eng.,vol.20,pp.505–514,June 2012.
[24]T.Luo,S.Hu,J.Cui,H.Tian,and C.Jing,Comparison of arsenic geochemical evolution in the Datong Basin(Shanxi)and Hetao Basin(Inner Mongolia),China,Appl.Geochem.,vol.27,pp.2315–2323,December 2012.
[25]H.Guo and Y.Wang,Geochemical characteristics of shallow groundwater in Datong basin,northwestern China.J.Geochem.Explor.,vol.87,pp.109–120,December 2005.
[26]A.D.Eaton,L.S.Clesceri,and A.E.Greenberg,Standard methods for the examination of water and wastewater,19th,American Public Health Association:Washington,DC,1995,pp.106–122.
[27]E.Elkhatib and A.M.Balba,Arsenate chemistry in soils of arid ecosystems.Alexandria Science Exchange,vol.25,pp.229–261,March 2004.
[28]Y.Arai and D.L.Sparks,ATR–FTIR spectroscopic investigation on phosphate adsorption mechanisms at the ferrihydrite-water interface,J.Colloid.Interf.Sci.,vol.241,pp.317–326,September 2001.
[29]H.Wijnja and C.P.Schulthess,Vibrational spectroscopy study of selenate and sulfate adsorption mechanisms on Fe and Al(Hydr)oxide surfaces.J.Colloid.Interf.Sci.,vol.229,pp.286–297,September 2000.
[30]J.D.Peak,R.G.Ford,and D.L.Sparks,An in situ ATR–FTIR investigation of sulfate bonding mechanisms on goethite.J.Colloid.Interf.Sci.,vol.218,pp.289–299,October 1999.
[31]J.A.Wilkie and J.G.Hering,Adsorption of arsenic onto hydrous ferric oxide:effects of adsorbate/adsorbent ratios and co-occurring solutes.Colloid.Surface.A.,vol.107,pp.97–110,February 1996.
[2]P.L.Smedley and D.G.Kinniburgh,A review of the source,behaviour and distribution of arsenic in natural waters,Appl.Geochem.,vol.17,pp.517–568,May 2002.
[3]S.Fendorf,H.A.Michael,and A.van Geen,Spatial and temporal variations of groundwater arsenic in south and southeast Asia,Science,vol.328,pp.1123–1127,May 2010.
[4]T.Luo,J.Cui,S.Hu,Y.Huang,and C.Jing,Arsenic removal and recovery from copper smelting wastewater using Ti O2,Environ.Sci.Technol.,vol.44,pp.9094-9098,December 2010.
[5]G.Jegadeesan,S.R.Al-Abed,V.Sundaram,H.Choi,K.G.Scheckel,and D.D.Dionysiou,Arsenic sorption on Ti O2 nanoparticles:size and crystallinity effects,Water Res.,vol.44,pp.965–973,February 2010.
[6]M.Pena,G.P.Korfiatis,M.Patel,L.Lippincott,and X.Meng,Adsorption of As(V)and As(III)by nanocrystalline titanium dioxide,Water Res.,vol.39,pp.2327–2337,June 2005.
[7]M.Pena,X.Meng,G.P.Korfiatis,C.Jing,Adsorption mechanism of arsenic on nanocrystalline titanium dioxide,Environ.Sci.Technol.,vol.40,pp.1257–1262,January 2006.
[8]S.R.Kanel,B.Manning,L.Charlet,and H.Choi,Removal of arsenic(III)from groundwater by nanoscale zero-valent iron,Environ.Sci.Technol.,vol.39,pp.1291–1298,January 2005.
[9]E.A.Deliyanni,D.N.Bakoyannakis,A.I.Zouboulis,and K.A.Matis,Sorption of As(V)ions by akaganeite-type nanocrystals,Chemosphere,vol.50,pp.155–163,January 2003.
[10]J.T.Mayo,C.Yavuz,S.Yean,L.Cong,H.Shipley,W.Yu,J.Falkner,A.Kan,M.Tomson,and V.L.Colvin,The effect of nanocrystalline magnetite size on arsenic removal,Sci.Technol.Adv.Mat.,vol.8,pp.71–75,December 2007.
[11]T.Tuutij?rvi,J.Lu,M.Sillanp??,and G.Chen,As(V)adsorption on maghemite nanoparticles,J.Hazard.Mater.,vol.166,pp.1415–1420,July2009.
[12]C.Jing,X.Meng,E.Calvache,and G.Jiang.Remediation of organic and inorganic arsenic contaminated groundwater using a nanocrystalline Ti O2-based adsorbent,Environ.Pollut.,vol.157,pp.2514–2519,August–September 2009.
[13]L.Charlet and D.A.Polya.Arsenic in shallow,reducing groundwaters in southern Asia:an environmental health disaster,Elements,vol.2,pp.91–96,April 2006.
[14]S.Goldberg,Competitive adsorption of arsenate and arsenite on oxides and clay minerals,Soil Sci.Soc.Am.J.,vol.6,pp.161–182,1999.
[15]A.Jain and R.H.Loeppert,Effect of competing anions on the adsorption of arsenate and arsenite by ferrihydrite,J.Environ.Qual.,vol.29,pp.1422–1430,January,2000.
[16]X.Meng,S.Bang,and G.P.Korfiatis,Effects of silicate,sulfate,and carbonate on arsenic removal by ferric chloride,Water Res.,vol.34,pp.1255–1261,March 2000.
[17]Y.Jeong,F.Maohong,J.Van Leeuwen,and J.F.Belczyk,Effect of competing solutes on arsenic(V)adsorption using iron and aluminum oxides,J.Environ.Sci.,vol.19,pp.910–919,2007.
[18]S.E.O’Reilly,D.G.Strawn,and D.L.Sparks,Residence time effects on arsenate adsorption/desorption mechanisms on goethite,Soil Sci.Soc.Am.J.,vol.65,pp.67–77,2001.
[19]Z.Hongshao and R.Stanforth,Competitive adsorption of phosphate and arsenate on goethite,Environ.Sci.Technol.,vol.35,pp.4753–4757,November 2001.
[20]周娟娟,高超,李忠佩,王登峰.磷对土壤As(V)固定与活化的影响.土壤,37(6):645–648,2005.
[21]T.Kinjo and P.F.Pratt,Nitrate adsorption:II.competition with chloride,sulphate and phosphate,Soil.Sci.Soc.Am.Proc.,vol.32,pp.725–728,1971.
[22]F.Frau,R.Biddau,and L.Fanfani,Effect of major anions on arsenate desorption from ferrihydrite-bearing natural samples,Appl.Geochem.,vol.23,pp.1451–1466,June 2008.
[23]T.Tuutij?rvi,E.Repo,R.Vahala,M.Sillanp??,and G.Chen,Effect of competing anions on arsenate adsorption onto maghemite nanoparticles,Chinese.J.Chem.Eng.,vol.20,pp.505–514,June 2012.
[24]T.Luo,S.Hu,J.Cui,H.Tian,and C.Jing,Comparison of arsenic geochemical evolution in the Datong Basin(Shanxi)and Hetao Basin(Inner Mongolia),China,Appl.Geochem.,vol.27,pp.2315–2323,December 2012.
[25]H.Guo and Y.Wang,Geochemical characteristics of shallow groundwater in Datong basin,northwestern China.J.Geochem.Explor.,vol.87,pp.109–120,December 2005.
[26]A.D.Eaton,L.S.Clesceri,and A.E.Greenberg,Standard methods for the examination of water and wastewater,19th,American Public Health Association:Washington,DC,1995,pp.106–122.
[27]E.Elkhatib and A.M.Balba,Arsenate chemistry in soils of arid ecosystems.Alexandria Science Exchange,vol.25,pp.229–261,March 2004.
[28]Y.Arai and D.L.Sparks,ATR–FTIR spectroscopic investigation on phosphate adsorption mechanisms at the ferrihydrite-water interface,J.Colloid.Interf.Sci.,vol.241,pp.317–326,September 2001.
[29]H.Wijnja and C.P.Schulthess,Vibrational spectroscopy study of selenate and sulfate adsorption mechanisms on Fe and Al(Hydr)oxide surfaces.J.Colloid.Interf.Sci.,vol.229,pp.286–297,September 2000.
[30]J.D.Peak,R.G.Ford,and D.L.Sparks,An in situ ATR–FTIR investigation of sulfate bonding mechanisms on goethite.J.Colloid.Interf.Sci.,vol.218,pp.289–299,October 1999.
[31]J.A.Wilkie and J.G.Hering,Adsorption of arsenic onto hydrous ferric oxide:effects of adsorbate/adsorbent ratios and co-occurring solutes.Colloid.Surface.A.,vol.107,pp.97–110,February 1996.