Synthesis and application of a novel core-shell-shell magnetic ion imprinted polymer as a selective adsorbent of trace amounts of silver ions

Abstract

Ion-imprinted polymer (IIP) technology has received considerable attention for its greatest potential application. In this work, a novel magnetic nano ion-imprinted polymer (MIIP) for the selective and sensitive pre-concentration of silver (I) ions were used. It was obtained using Fe3O4@SiO2@TiO2 nanoparticles as a magnetic support of adsorbent, Ag(I)-2,4-diamino-6-phenyl-1,3,5-triazine (DPT) complex as the template molecule and methacrylic acid (MAA), 2,2′-azobisisobutyronitrile (AIBN), ethylene glycol dimethacrylate (EGDMA), as the functional monomer, the radical initiator and crosslinker, respectively. The synthesized polymer nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM) and Brunauer-Emmett-Teller (BET). Silver ions were separate from the polymer and measured by flame atomic absorption spectrometry (FAAS). The maximum adsorption capacity of the novel imprinted adsorbent for Ag(I) was calculated to be 62.5 mg g−1. The developed method was applied to the preconcentration of the analyte in the water, radiology film and food samples, and satisfactory results were obtained.

Antiulcerogenic Activity of methanol extract and solvent fractions of Stem Bark of Lannea acida (A. Rich) Against Ethanol-Induced Gastric Mucosal Injury in Albino Rats

“…Catalase activity, reduced glutathione, malondialdehyde (MDA), superoxide dismutase activity, Vitamin A, Vitamin C and Vitamin E were estimated by the method which is described in previous papers [17][18][19][20][21][22][23][24].…”

Hematology and Serum Biochemical Indices of Growing Rabbits Fed Diet Supplemented with Different Level of Indigofera Zollingeriana Leaf Meal

“…The SGPT and SGOT values are not significantly different among the treatment, though the values slightly decrease as the inclusion of IZM increased, this is a clear indication that IZM is non-toxic to the animals. Therefore, the integrity of the kidney and other visceral organs are maintained [45][46][47].…”

Synthetic methods and pharmacological potential of some cinnamic acid analogues particularly against convulsions

“…Reported applications for cinnamic acid and its derivatives also include: preparation of herbicidal compositions; as a raw material in the synthesis of heterocyclic color complexes. One of the most interesting uses for cinnamic acid in recent years has been as a raw material in the preparation of L-phenylalanine the key intermediate for the aspartame [36] (synthetic dipeptide sweetener). More than 95% of the consumption of cinnamaldehyde occurs in flavor applications where a spicy, cinnamon character is required.…”