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Synthesis of Chelating Adsorbent (2,2'-Iminodibenzoic Acid-crosslinked Chitosan) and Adsorptivity of Pb(II), Cu(II), Cd(II)
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1998, v.11 no.6, pp.452-459
Shim,
S., &
Ryu,
J.
(1998). Synthesis of Chelating Adsorbent (2,2'-Iminodibenzoic Acid-crosslinked Chitosan) and Adsorptivity of Pb(II), Cu(II), Cd(II). Analytical Science and Technology, 11(6), 452-459.
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Abstract
Crosslinked chitin was prepared from epichlorohydrin and chitin which was isolated from waste marin source. The crosslinked chitosan were prepared by the deacetylation of the crosslinked chitin with a strong base. 2,2'-Iminodibenzoic acid-crosslinked chitosan was prepared by reacting 2,2'-Iminodibenzoic acid salt with crosslinked chitosan-Cl which was obtained by chlorination of crosslinked chitosan. The adsorptivity of Pb(II), Cu(II), Cd(II) was studied as a synthetic adsorbent. Experimental results for the adsorption and the recovery characteristics showed that the more pH increase, the more amount of adsorbed metal ion increase. Optimum adsorption time was 1 hr, and adsorption capacity was increased in order of <TEX>$Cu^{2+}$</TEX><<TEX>$Cd^{2+}$</TEX><<TEX>$Pb^{2+}$</TEX>, and recovery capacity was increased in order of <TEX>$Cd^{2+}$</TEX><<TEX>$Cu^{2+}$</TEX><<TEX>$Pb^{2+}$</TEX>.
- keywords
- chelating adsorbents, ion exchanger, adsorption capacity, 2, 2'-Iminodibenzoic acid crosslinked chitosan
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