Journal
CHEMICAL ENGINEERING JOURNAL
Volume 250, Issue -, Pages 6-13Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2014.03.101
Keywords
Al(OH)(3)/(PAA-CO-PAM) sub-microspheres; Interpenetrating network structure; Adsorption; Pb(II)
Categories
Funding
- Anhui province Natural Science Foundation [1040606M43]
- Opening Project of Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei, China [230039, KF2012002]
Ask authors/readers for more resources
Al(OH)(3)/(PAA-CO-PAM) sub-microspheres have been synthesized via inverse emulsion polymerization method using 0.0132 g (NH4)(2)S2O8 as initiator, 2.2 g each of acrylamide aluminum acrylate as monomers, 1.5 g Span-80 and 0.5 g polyoxyethylene octylphenol ether (OP-10) as emulsifiers at 66 degrees C for 10 h. The composition and morphology of the obtained Al(OH)(3)/(PAA-CO-PAM) sub-microspheres were investigated by infrared spectrum, X-ray powder diffraction (XRD) and scanning electron microscopy. The obtained Al(OH)(3)/(PAA-CO-PAM) sub-microspheres were used to investigate adsorption of Pb(II) from aqueous solutions. The research results display that composite material has high adsorption capacity for Pb(II) at an optimum pH 5. The maximum adsorption capacity was 106.2 mg/g within 240 min at 24 degrees C. Various thermodynamic parameters such as free energy (Delta G), enthalpy (Delta H) and entropy (Delta S) showed that the adsorption was spontaneous, endothermic and feasible. Adsorption behavior for Pb(II) onto sub-microspheres belongs to the pseudo-second-order kinetic model and the adsorption process is a chemical process. (C) 2014 Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available