The present study aimed to prepare a novel biosorbent of nanochitosan (NCS)/carboxymethyl cellulose
(CMC)/graphene oxide (GO) and used to remove Cu(II) ion from wastewater system. The prepared
nanocomposite was characterized using FTIR, XRD and SEM analysis. The FTIR and XRD results
revealed the formation of novel NCS/CMC/GO nanocomposite. Rough surface morphology of
nanocomposite was confirmed from the SEM analysis results. The removal efficiency of Cu(II) ion
was evaluated through batch mode by varying pH, adsorbent dose, contact time and initial metal ion
concentration. The maximum removal of Cu(II) ion was 80.1% at pH 4, 92.4% at 360 min contact
time and about 89.2% for 3 g adsorbent dose. Theoretical models such as Langmuir isotherm, Freundlich
isotherm, and kinetics models were used to evaluate the experimental results. After examining, the
results revealed that the adsorption follows Freundlich isotherm and pseudo-second-order models.
The adsorption capacity of the prepared nanocomposite was 145.22 mg/g.
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