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Efficacy of Zirconium(Iv) Tellurotungstate Encapsulated in The Matrix of Polyaniline for Heavy Metal Ion Separation

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Author Affiliations

  • 1Post Graduate and Research Department of Chemistry, SreeNarayana College, Kannur, Kerala-670 007, INDIA

Res. J. Recent Sci., Volume 3, Issue (12), Pages 60-66, December,2 (2014)

Abstract

A new heteropolyacid salt based composite cation exchanger, Zirconium(IV)tellurotungstate (ZrTeW), has been synthesized by co-precipitation method and it is incorporated into the matrix of polyaniline by simple method. The material was found to be granular and can be conveniently used in column operations. The material was characterized by various analytical techniques. The material showed higher ion exchange capacity (1.48 meq/g) than its inorganic counterpart (1.1meq/g). Effects of temperature and ionic radii on ion exchange capacity, chemical stability in various solvents, pH titration studies were also carried to understand the ion exchange capabilities. The distribution co-efficient studies of metal ions in various electrolytes on exchanger revealed that the material is highly selective for Bi3+ and Th4+, which are toxic environmental pollutants. The selectivity of various metal ion was found to be in the order Bi3+ > Th4+ > Pb2+ > Zn2+ > Mn2+ > Ca2+ > Al3+ > Hg2+ > Co2+ > Ni2+ > Cd2+ > Mg2+ > Cu2+. The analytical application has been explored by achieving some binary separation of heavy metal ions such as Bi3+-Cu2+, Th4+-Cu2+, etc. Practical application of the material was tested by using various industrial wastewaters and was found to be used successfully in the separation of toxic/heavy metal ions.

References

  1. Matlock M.M., Howerton B.S. and Atwood D.A., Gold ore column studies with a new mercury precipitant, Ind. Eng. Chem. Res., 41, 1579–1582 (2002)
  2. Moon C.J. and Lee J.H., Use of curdlan and activated carbon composed adsorbents for heavy metal removal,Process Biochem., 40, 1279–1283 (2005)
  3. Paaez-Hernaandez M.E., Aguilar-Argteaga K., Galaan-Vidal C.A. and Palomar-Pardavea M., Mercury ions removal from aqueous solution using an activated composite membrane,Environ. Sci.Technol., 39, 7667–7670 (2005)
  4. Meunier N., Drogui P., Gourvenec C., Mercier G., Hausler R. and Blais J.F., Removal of metals in leachate from sewage sludge using electrochemical technology, Environ. Technol., 25235-245 (2004)
  5. Dabrowski A., Hubicki Z., Podkoscielny P. and Robens E., Selective removal of the heavy metal ions from waters and industrial wastewaters by ion-exchange method, Chemosphere, 5691–106 (2004)
  6. Woodberry P., Stevens G. and Snap I., Removal of metal contaminants by ionexchange resin columns, Thala Valley Tip, Casey Station, Antarctica, Solvent Extr. Ion Exch., 24, 603-620 (2006)
  7. Perez-Collado J.M., Molero C. and Larrondo E., Removal of cesium catalyst from polyols by ion exchange on Amberlite 252, React. Funct. Polym., 64139–150 (2005)
  8. Nabi S.A., Shahadat Mohammad., Bushra R., Shalla A.H. and Ahmed F., Development of composite ion-exchange adsorbents for pollutant removal from environmental wastes, Chem. Eng. J., 165, 405-412 (2010)
  9. Nabi S. A., Shalla A.H., Khan A.M. and Ganie S.A., Synthesis, characterization and analytical applications of titanium(IV) molybdosilicate:A cation ion-exchanger, Colloids Surf. B.,302, 241-250 (2007)
  10. Nilchi A., Maalek B., Khanchi A., Maragheh M.G., and Bagheri A., Cerium (IV) molybdate cation exchanger: Synthesis, properties and ion separation capabilities, Radiat. Phys. Chem., 75, 301-308 (2006)
  11. Singh P., Rawat J.P. and Rahman N., Synthesis and characterization of zirconium(IV) iodovanadate and its use as electron exchanger, Talanta,59, 443-452 (2003)
  12. Roy K., Pal D.K., Basu S., Nayak D. and Lahiri S., Synthesis of a new ion exchanger zirconium vanadate, and its application to the separation of barium and cesium radio nuclides at tracer levels, Appl. Radiat. Isot., 57, 471-474 (2002)
  13. Varshney K.G., Gupta A. and Singhal K.C., Synthetic, analytical and kinetic studies on a crystalline and thermally stable phase of antimony(V)arsenosilicate cation exchanger, Colloids Surf. A.,82, 37, (1994)
  14. Varshney K.G. and Maheshwari S.M., Synthesis, characterization and ion exchange behavior of antimony(V) phosphate: Selective adsorption of cadmium and mercury on its column, Ecotoxicol. Environ.Safety, 18, 1-10 (1989)
  15. Vogel A.I., A text book of quantitative inorganic analysis, Longman Group Limited, London, (1975)
  16. Topp N.E. and Pepper K.W., Properties of ion-exchange resins in relation to their structure. Part I. Titration curves, J. Chem. Soc., 690, 3299-3303 (1949)
  17. Helfrich H., Ionites, Foreign Literature, Moscow, (1962)
  18. Grissbach R., Theory and Practice of the Ion Exchange, Foreign Literature, Moscow, (1963)
  19. Gregor H.P., Hamilton M.J. and Becher J., Studies on ion exchange resins. XIV. Titration, capacity and swelling of Methaerylic acid resins, J. Phys. Chem., 59, 874-881 (1955)
  20. Preetha B and Janardanan C., UV-Visible diffuse reflectance spectroscopic studies on Mn and Cu ion exchange of newly synthezised cerium zirconium antimonite and its application in dye degradation, Res.J.Recent.Sci., 1(ISC-2011) 85-92 (2012)
  21. Qureshi M., Kumar R. and Kaushik R.C., Synthesis and ion-exchange properties of reproducible Stannic molybdoarsenate. Separations of Ba2+ La3+, Mg2+ La3+, Sr2+ Y3+, and Sr2+ La3+, Sep. Sci. Technol.13, 185-192 (1978)
  22. Zafar Alam et al., Synthesis and characterization of a thermally stable strongly acidic Cd(II) ion selective composite cation-exchanger: Polyaniline Ce(IV) molybdate., Desalination., 250, 515-522 (2010)
  23. Rao C.N.R., Chemical Application of Infrared Spectroscopy., 353 Academy Press, New York, (1963)
  24. Khan A.A and Inamuddin., Preparation, physico-chemical characterization, analytical applications and electrical conductivity measurement studies of an ‘organic-inorganic’ composite cation-exchanger: Polyaniline Sn(IV) phosphate, React. Funct. Polym., 661649–1663 (2006)
  25. Tang J., Jing X., Wang B. and Wang F., Infrared spectra of soluble polyaniline, Synth. Met., 24231–238 (1988)