Details

Autor(en) / Beteiligte

• Ming, Guangtian
• Duan, Hongdong
• Meng, Xia
• Sun, Guangming
• Sun, Wenjun
• Liu, Yu
• Lucia, Lucian

Titel

A novel fabrication of monodisperse melamine–formaldehyde resin microspheres to adsorb lead (II)

Ist Teil von

• Chemical engineering journal (Lausanne, Switzerland : 1996), 2016-03, Vol.288, p.745-757

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• •Monodisperse MF resin microspheres were prepared without adding any surfactant.•MF resin microspheres prepared under optimal condition had a clean surface.•MF resin microspheres contained abundant active amine and imine.•MF resin microspheres exhibited a fast adsorption efficiency of Pb (II). Monodisperse melamine–formaldehyde (MF) resin microspheres were prepared by dilute solution precipitation polymerization without any surfactant and stabilizer. The optimal preparation conditions and the mechanism of microsphere formation of the microspheres were investigated by microscopy, Fourier transform infrared spectra, thermal stability, and particle size analysis. The microspheres prepared under optimal conditions had a clean surface, good thermal stability, and a narrow distribution with a mean diameter of about 2.5μm. In addition, the microsphere had an abundance of amino and imino functional groups that could supply numerous active points for adsorption. From a study of the static and dynamic adsorption of lead (II) (Pb (II)) using MF resin microspheres as the adsorbent, it was found that the resin microspheres showed a fast adsorption and high removal efficiency of Pb (II).