Tổng hợp và khả năng ứng dụng nanocompozit polynaphtylamin/Fe3O4 trong xử lí asen

Abstract

This paper presents the synthesis route, the properties of the polynaphthylamine (PNA)/Fe₃O₄ nanocomposites and their adsorption studies of arsenic (III) removal from water. Microstructure and morphology of the nanocomposites with the polymer contents of 0 %, 5 % and 10 % and 15 % have been investigated by measurements: X-ray diffraction analysis (XRD), SEM, TEM, Raman scattering spectrum. The studied results showed that the size of nanocomposite particles was about 20 nm. The saturation magnetization of the samples had values ​​of about 45-65 emu/g as measured by vibrating sample magnetometer (VSM). The investigations of isothermal adsorption process and influences of pH to arsenic adsorption capacity showed that the nanocomposite materials with appropriate polymer components have good arsenic adsorption ability in water.

Keywords: Fe₃O₄, nanocomposite, magnetization, arsenic treatment.