Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 20, Issue -, Pages S187-S191Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(10)60037-4
Keywords
orange peel xanthate; adsorption; heavy metals
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Funding
- National Natural Science Foundation of China [50774100]
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Preparation of orange peel xanthate and its adsorption behaviors of five heavy metals (Cu2+, Cd2+, Pb2+, Zn2+ and Ni2+) were studied. FTIR spectra, Zeta potentials and TG analysis were used to characterize prepared orange peel xanthate. Effects of various parameters including equilibrium pH, initial metal ion concentration and adsorption time on the adsorption processes for the five metal ions were investigated. It was found that for all five metal ions, the adsorption isotherms agreed Langmuir model very well 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, 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.
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