Author/Authors :
Asemaneh, H.R Faculty of Petroleum and Chemical Engineering - Razi University, Kermanshah, Iran , Rajabi, L Faculty of Petroleum and Chemical Engineering - Razi University, Kermanshah, Iran , Dabirian, F Department of Textile Engineering - Faculty of Engineering, Razi University, Kermanshah, Iran , Rostami, N Faculty of Petroleum and Chemical Engineering - Razi University, Kermanshah, Iran , Derakhshan, A.A Environmental Research Center - Department of Applied Chemistry - Razi University, Kermanshah, Iran , Davarnejad, R Department of Chemical Engineering - Faculty of Engineering - Arak University, Arak, Iran
Abstract :
In this research, graphene oxide (GO) was functionalized by tannic acid to produce GO-TA and fabricate a novel functionalized graphene oxide/ polyacrylonitrile (PAN) nanofibrous as an adsorbent in order to remove two hazardous heavy metals from aqueous solutions. The results showed that the composite adsorbent can properly adsorb Pb2+ and Cd2+ metal cations, due to having the numerous potential active sites. The optimum conditions for 97.37% of Pb2+ and 94.28% of Cd2+ ions removal were meanly obtained at pH of 6.3, nanoparticles weight percentage of 4.26 wt.%, metal ions concentration of 35.74 ppm and contact time of 70.5 min. The maximum adsorption capacities for lead and cadmium ions.were found at 344.83 and 312.5 mg/g, respectively.
Keywords :
Adsorption , Nanofibrous Composite , Graphene Oxide , Heavy Metals
