Diacetylmonoxine modified chitosan derived ion-imprinted polymer for selective solid-phase extraction of nickel (II) ions

Adsorption property and mechanism of glutaraldehyde-crosslinked chitosan for removal of 2,4-dichlorophenoxyacetic acid from water

“…Chitosan exhibited a semicrystalline structure with two characteristic diffractive peaks at 2θ = 12°and 20°, which corresponded to reflection peaks in hydrated chitosan crystals at (0 2 0) and (1 0 0). 41,42 After the cross-linking reaction, the peak at 2θ = 12°d isappeared and the peak at 2θ = 20°decreased in intensity. These results demonstrated that the structural arrangement of the polysaccharide backbone changed after the crosslinking reaction and the crystallinity decreased, which might be attributed to the damage of inter and intra-molecular hydrogen bonds and the slight depolymerization of polysaccharide chains.…”

Ion-Imprinted Polymers: Synthesis, Characterization, and Adsorption of Radionuclides

“…In another study concerned with the s tive Ni removal and proper complexation with Ni ions, an ion-imprinted material prepared with diacetylmonoxine-modified chitosan. To maintain the structural rigidi the polymer, glyoxal was used as a crosslinker [145]. Lenoble et al [146] prepared a imprinted polymer using N-(4-vinylbenzyl)-2-(aminomethyl)pyridine (Vbamp) ligan form a complex between Ni²⁺ and the complex crosslinked with EGDMA in a 1:3 r The prepared material showed excellent retention capacity over other competitive The properties of the abovementioned Ni-IIPs are presented in Table 8.…”

Synthesis process and adsorption performance of temperature-sensitive ion-imprinted porous microspheres (ReO4−-TIIM) for the selective separation of ReO4−

“…At present, there are many reports on the application of imprinting technology in the field of separation, and imprinted polymers (IPs) have become an advanced separation material. 25–27 Researchers have developed many materials with excellent adsorption capacity and high selectivity based on imprinted techniques. Li Chen et al innovatively combined imprinting technology with separation membrane technology to prepare imprinted separation membrane materials with high selectivity using PVDF-EVOH-Cyanex272 PIM as the substrate, Y( iii ) as the template ion, and itaconic acid (IA) as the functional monomer by pure aqueous phase synthesis.…”