Most cellulose ethers are prepared by reacting alkali cellulose
with organic halides and Navarro et al. (1996) modified
porous cellulose carriers through this type of
etherification reaction. This was achieved by initially reacting
the cellulose carrier with sodium methylate to form
alkali cellulose, which was subsequently reacted with the
organic halide, epichlorohydrin, yielding reactive epoxy
groups for further functionalisation with polyethyleneimine
as a chelating agent. The prepared adsorbent
(Cell-PEI) had metal uptake affinities for Co(II), Cu(II)
and Zn(II), respectively, of 2.5 mg g1, 38mgg1 and
12 mg g1
Most cellulose ethers are prepared by reacting alkali cellulosewith organic halides and Navarro et al. (1996) modifiedporous cellulose carriers through this type ofetherification reaction. This was achieved by initially reactingthe cellulose carrier with sodium methylate to formalkali cellulose, which was subsequently reacted with theorganic halide, epichlorohydrin, yielding reactive epoxygroups for further functionalisation with polyethyleneimineas a chelating agent. The prepared adsorbent(Cell-PEI) had metal uptake affinities for Co(II), Cu(II)and Zn(II), respectively, of 2.5 mg g1, 38mgg1 and12 mg g1
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