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1. Preparation and evaluation of orange peel xanthate for effective removal of heavy metals from aqueous solutions | |||
Guo Xueyi,Liang Sha,Feng Ningchuan,Tian Qinghua | |||
Metallurgical Engineering 02 April 2009 | |||
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Abstract:The preparation of orange peel xanthate and its adsorption behaviors of heavy metals: Cu2+, Cd2+, Pb2+, Zn2+, Ni2+ were studied. FTIR spectrum and zeta potentials were used to characterize the prepared orange peel xanthate. Effects of various parameters including equilibrium pH, initial ion concentration and contact time on the adsorption processes for the five metal ions were investigated. For all five metal ions, adsorption isotherms were found to fit Langmuir model and the maximum adsorption capacities of Cu2+, Cd2+, Pb2+, Zn2+ and Ni2+ were obtained as 77.60, 76.57, 218.34, 49.85 and 15.45 mg•g-1, respectively. All adsorption processes can attain equilibrium within 20 min and kinetics was well fitted by psesudo-second order equation. It is proposed that the adsorption mechanism was complexation. | |||
TO cite this article:Guo Xueyi,Liang Sha,Feng Ningchuan, et al. Preparation and evaluation of orange peel xanthate for effective removal of heavy metals from aqueous solutions [OL].[ 2 April 2009] http://en.paper.edu.cn/en_releasepaper/content/31025 |
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