Fabrication of novel chitosan-humic acid-graphene oxide composite to improve adsorption properties for Cr(VI)
作者： Şerife Parlayıcı , Ahmet Avcı , Erol Pehlivan , None
DOI: 10.1007/S12517-019-4828-8
关键词:
摘要: A novel chitosan-humic acid-graphene oxide (Cts-HA-GO) composite was produced and tested to remove hexavalent chromium (Cr(VI)) during the adsorption process. The percentage 85.28% by using 200 ppm Cr(VI) 2 g/L composite. Four hours of contact time enough from aquatic medium. extent on surface Cts-HA-GO examined basis increasing quantity functional group characterization morphology characterized scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy. After reaching equilibrium, residual concentration solution measured with an UV-visible spectrophotometer. results showed that behaviour in accordance Langmuir isotherm model, maximum capacity determined this model 83.64 mg/g at pH 2. pseudo-second-order equation has justified equilibrium between for kinetic studies.
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