New Polysiloxane Surfaces Modified with Ortho-, Meta-, or Para-Nitrophenyl Moieties for Cadmium Removal from Water
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This study aims to prepare and develop several vehicles chelation polydentate supported ligands
and then installed it using sol-gel or polymerization or to be susceptible to imply conjunction with
the highly toxic heavy metal ions in the water, and disrupted the underground water used for
drinking or agriculture, including cadmium ions. As the process of interaction between ligands
and heavy metals depends on the circumstances of surrounding conditions which are treated in
this research. Metal ion uptake through complexation or hydrogels can be affected by hydrophilichydrophobic
balance, the nature of chelate ligands and the extent of cross-linking of macromolecular
supports. Ligand function also dictates reactivity, complexation ability and efficiency of
polymer supported ligands in the present case expected to be good solution for such problem. This
research involves the synthesis and characterization of new polysiloxane surfaces modified with
ortho-, meta-, or para-nitrophenyl moieties. The resulting adsorbents have been characterized by
SEM, IR, UV, 13C solid state NMR, BET surface area, B.J.H. pore sizes, TGA and nitrogen adsorption-
desorption isotherm. These porous materials showed a very good thermal and chemical stability
and hence they can be used as perfect adsorbents to uptake toxic heavy metal ions including
Cd(II) from groundwater. The concentrations of each adsorbate in the filtrate were determined
using Atomic Absorption Spectrophotometer. The results showed that all of the three resulting
products had high adsorption efficiency. Also, it showed strong complexation properties with
heavy metal ions.

Journal of Surface Engineered Materials and Advanced Technology
Scientific Research Publishing
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