Synthesis and adsorption properties, toward some heavy metal ions, of a new polystyrene‐based terpyridine polymer

Abstract

A novel polymeric ligand having 2,2 0 :6 0 ,2 00 -terpyridine as pendant group was prepared through a Williamson type etherification approach for the reaction between 4 0 -hydroxy-2,2 0 : 6 0 ,2 00 -terpyridine and the commercially available 4-chloromethyl polystyrene. The chelating properties of the new polymer toward the divalent metal ions (Cu 2þ , Zn 2þ , Ni 2þ , and Pb 2þ ) in aqueous solutions was studied by a batch equilibration technique as a function of contact time, pH, mass of resin, and concentration of metal ions. The amount of metal-ion uptake of the polymer was determined by using atomic absorption spectrometry. Results of the study revealed that the resin exhibited higher capacities and a more pronounced adsorption toward Pb 2þ and that the metal-ion uptake follows the order: Pb 2þ > Cu 2þ > Zn 2þ > Ni 2þ . The adsorption and binding capacity of the resin toward the various metal ions investigated are discussed.

Synthesis, characterization, and Pb2+ ion sensing application of hexa‐armed dansyl end‐capped poly(ε‐caprolactone) star polymer with phosphazene core

“…Synthesis of N 3 P 3 -(OC 6 H 4 -p-CH 2 OH) 6 (1) N 3 P 3 -(OC 6 H 4 -p-CH 2 OH) 6 was synthesized using the method reported in the literature. H 3 PO 4 (85%) was employed as the external reference for 31 P NMR measurements.…”

“…Tin(II) 2-ethylhexanoate (Sn(Oct) 2 ) (0.0487 g, 0.120 mmol) and N 3 P 3 -(OC 6 H 4 -p-CH 2 OH) 6 (1) (0.1 g, 0.114 mmol) was added to a fire dried polymerization tube. Then, e-CL (2.743 g, 24.035 mmol) was added and the mixture was stirred under argon atmosphere until a clear solution was obtained.…”

Rational design of a material for rapid colorimetric Fe2+ detection

“…Terpy motifs have been anchored onto a large number of solid supports resulting in functional materials with enhanced stability and excellent light absorption properties [18,[23][24][25][26][27][28][29]. Nishihara et al have achieved long range electron transport for molecular electric wires by assembling bis(terpyridine) metal complexes on gold surfaces.…”

Acrylamide‐plasma treated electrospun polystyrene nanofibrous adsorbents for cadmium and nickel ions removal from aqueous solutions

“…They have resulted in the removal efficiency (%R) for Pb 2+ , Cu 2+ , Zn 2+ , and Cd 2+ were 90.8%, 89.6%, 84.5%, and 82%, respectively at pH 6. Moreover, Saadeh et al . synthesized a new PS‐based terpyridine polymer for the adsorption of Ni 2+ , Cu 2+ , Pb 2+ , and Zn 2+ ions.…”

“…They have resulted in the removal efficiency (%R) for Pb 21 , Cu 21 , Zn 21 , and Cd 21 were 90.8%, 89.6%, 84.5%, and 82%, respectively at pH 6. Moreover, Saadeh et al 26 synthesized a new PS-based terpyridine polymer for the adsorption of Ni 21 , Cu 21 , Pb 21 , and Zn 21 ions. Their study showed that the maximum equilibrium capacity of the ions in the order mentioned above were about of 10, 75, 80, and 40 mg g 21 at pH 7 during 25 min, respectively.…”