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Adsorption properties and metal growth aspects on the surface of activated carbon monolith electrochemically deposited with Ag

Oh, Won-Chun   (Department of Adv. Mat. Sci. &Eng., Hanseo UniversityUU0001506  ); Lim, Chang-Sung   (Department of Adv. mat. Sci. &Eng., Hanseo UniversityUU0001506  );
  • 초록

    The electrochemical adsorption of the Ag ions from aqueous solution on pelletized activated carbon monolith was investigated over wide range of operation time. The adsorption capacities of pelletized activated carbon monolith are associated with their internal porosity and are related properties such as surface area, pore size distribution. The chemical industry generates wastewater that contains toxic matters like heavy metals in small concentrations so that their economic recovery is not feasible. But, the method using activated carbon monolith can be used to withdrawal of heavy metals in waste water. After the electrochemical treatment, the quantitative properties in Ag ion solutions are also examined by pH concentration and studied elemental analysis by ICP-Atomic Emission Spectrometer and Energy Disperse X-ray (EDX) spectra. It is consider that the pH is very important factor at the reason of water pollutant with increasing acidity in industrial field. The result of quantitative analysis using Inductively Coupled Plasma-Atomic Emission Spectrometer of metal after electrochemical reaction in Ag ions solution depending on time are shown that the amount of Ag ions deposited was decreased with growth of Ag particles on the carbon surfaces as increasing electrochemically treated time. And, surface morphologies are investigated by scanning electron microscopy (SEM) to explain the changes in adsorption properties.


  • 주제어

    Adsorption .   Surface area .   Pore size distribution .   ICP .   EDX .   SEM.  

  • 참고문헌 (8)

    1. Heat treatment efect of metal-activated carbon , W.C.Oh , J. Korean Ind. Eng. Chem. / v.13,pp.434,
    2. Introduction to adsorption. Use of adsorbents for removal of pollutants from waste-waters , B.Al-Duri; McKay G(ed.) , Boca Ration / v.,pp.1,
    3. Electrochemical adposition of metal ions to activated carbon fibers and their surface properties , W.C.Oh;B.S.Kim;Y.S.Lee , Proceeding of international Conf. on Carbon '02 / v.,pp.,
    4. Simultaneous recovery of metals and desruction of organic species; cobalt and phthalic acid , S.H.Grimes;J.D.Donaldson;A.J.Chaudhary;M.Hassan , Enviro. Sci. Technol / v.34,pp.4124,
    5. Adsorption and surface properties of metal ion treated activted carbon fiber , W.C.Oh;B.S.Kim;Y.H.Lee;J.G.Kim;m.K.Kim;S.H.Cho , Extended abstracts and program of 24th biennial conf. on carbon / v.,pp.342,
    6. The physicochemical properties and the antibacterial effects of Ag-treated activated carbon , W.C.Oh;S.B.Kim;H.J.Oh;M.K.Kim , J. Korean Association of Crystal Growth / v.9,pp.339,
    7. Industrial aspects of production and use of actvated carbon , T.Wigman , Carbon / v.27,pp.13,
    8. A study on characterization of surface and pore for Ag-impregnated activated carbon , J.K.Kim;W.C.Oh;M.K.Kim , J. Korean Ind. Eng. Chem. / v.9,pp.729,

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