Removal of mercury ions from aqueous solutions by composite of polyaniline with polystyrene

Silica coated magnetite particles for magnetic removal of Hg2+ from water

“…Analytical problems arise due to the fact that many chemicals and pharmaceutical preparations contain trace amounts of mercury and/or its compounds, and the presence of other ions in solution may interfere with the determination of Hg 2+ [12]. Consequently, the development of efficient new materials and clean-up technologies for removing mercury from effluents is extremely urgent [13][14][15][16][17][18].…”

Removal and recovery of chromium from wastewater using short chain polyaniline synthesized on jute fiber

“…In literatures, some studies on use of polyaniline for metal removal have been published. Removal of mercury by a combination of polyaniline and polystyrene is reported [8]. Olad and Nabavi [9] used polyaniline in the forms of powder, film on electrodes and free standing film for removal of hexavalent chromium.…”

Preparation of organically functionalized silica gel as adsorbent for copper ion adsorption

“…The functional groups on the surfaces of the adsorbents play important roles in the adsorption performance. The amine (-NH 2 ) group has been reported to be one of the most efficient functional groups to remove heavy metal ions, owing to the coordination between metal ions and amine groups (Ghoul et al, 2003;Gupta et al, 2004;Zhang et al, 2007). Various adsorbents containing -NH 2 groups in its backbone or from the synthetic polymers which are subsequently immobilized with -NH 2 groups, have been developed from natural biopolymers (e.g., chitosan) (Deng et al, 2003;Juang and Shao, 2002).…”