Nano-iron oxide-encapsulated chitosan microspheres as novel adsorbent for removal of Ni (II) ions from aqueous solution

Dhiwar, Chanchal; Tiwari, Alka; Bajpai, A. K.

doi:10.1007/s11164-012-0812-6

Cited by 9 publications

(1 citation statement)

References 31 publications

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“…Resin microspheres are a polymeric material that have been widely used as a catalyst support [1], drug carrier [2], absorption material [3][4][5], carbon matrix [6,7] and template [8]. There are many preparation methods for resin microspheres [9] including suspension polymerization [10], emulsion polymerization [11,12], dispersion polymerization [13,14], and precipitation polymerization [2,15] that are employed for specific end uses.…”

Section: Introductionmentioning

confidence: 99%

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

Ming

Duan

Meng

et al. 2016

Chemical Engineering Journal

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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 2.5 μm. 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).

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