Synthesis and Adsorption Properties for Ag(I) of Pyridinedicanbnyl Thiourea Resin
A novel pyridinedicanbnyl thiourea chelating resin(PTR) was synthesized from pyridinedicanbnyl diisothiocyanate and diethylene triarmine , its structure was confirmed by FT-IR. The adsorption properties of PTR for Ag(I) were investigated by batch operation . The results show that the adsorption equilibrium of PTR for Ag(I) is achieved after 14 hour at 25°C, the equilibrium adsorption capacity is 4.73mmol/g, the adsorption process accords with G. E. Boyd equation and Langmuir adsorption isotherm as well,and the silver-loaded resins can be quantitatively eluted by a solution containing 6% thiourea in 1mol/L HNO3.
Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen
Z. N. Wang et al., "Synthesis and Adsorption Properties for Ag(I) of Pyridinedicanbnyl Thiourea Resin", Advanced Materials Research, Vols. 581-582, pp. 180-184, 2012