Title of article :
Decoration of electrospun polyacrylonitrile nanofibers with ZnO nanoparticles and their application for removal of Pb ions from waste water
Author/Authors :
Rouhipour Mikal, Nesa School of Chemical Engineering - College of Engineering - University of Tehran , Sadjadi, Sodeh Nuclear Science and Technology Research Institute , Rajabi-Hamane, Mehdi School of Chemical Engineering - College of Engineering - University of Tehran , Ahmadi, Javad Nuclear Science and Technology Research Institute , Iravani, Effat Nuclear Science and Technology Research Institute
Abstract :
The adsorption behavior of lead (II) from aqueous solutions utilizing ZnO/polyacrylonitrile (PAN) nanofibers was studied. ZnO/PAN nanofibers were prepared by electrospinning method. The changes of the parameters of adsorbent amount, pH, contact time, and temperature were tested in the adsorption experiments. The adsorption was well described by the Langmuir adsorption isotherm model. The thermodynamic parameters indicate that the adsorption process is exothermic. The dynamic behavior of the lead (II) ions adsorption by PAN/ZnO nanofibers was well described by the pseudo-second-order kinetic model. The adsorbent can be regenerated by suitable desorption processes for multiple uses without significant loss of its adsorption capacity.
Keywords :
Adsorption , Polyacrylonitrile , ZnO nanoparticles , Lead (II) ions , Nanofibers
Journal title :
Astroparticle Physics
