Facile preparation of amidoxime-functionalized Fe3O4@SiO2-g-PAMAM-AO magnetic composites for enhanced adsorption of Pb(ii) and Ni(ii) from aqueous solution

• Published in: RSC advances Vol. 9; no. 16; pp. 9171 - 9179
• Main Authors: Yimin, Dai, Danyang, Liu, Jiaqi, Zou, Shengyun, Wang, Yi, Zhou
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 01.01.2019; The Royal Society of Chemistry
• Subjects: Adsorbents; Adsorption; Aqueous solutions; Chemistry; dendrimers; Desorption; energy-dispersive X-ray analysis; Fourier transform infrared spectroscopy; Iron oxides; Isotherms; lead; magnetism; microparticles; Microspheres; nickel; scanning electron microscopy; silica; Silicon dioxide; sorption isotherms; temperature; thermogravimetry; transmission electron microscopy; X ray photoelectron spectroscopy; X-ray diffraction

In this paper, using amidoxime as a functional monomer, different generations of polyamidoxime dendrimer magnetic microspheres (Fe3O4@SiO2-g-PAMAM-AO) were fabricated to adsorb Pb2+ and Ni2+ in aqueous solution. The magnetic adsorbents were characterized by FTIR, XRD, SEM, XPS, TEM, EDS, TGA and BET...