In the present work, the feasibility of chitosan-graphene oxide (CS-GO) nanocomposites, namely CS-GO 1% (w/w), CS-GO 2% (w/w) and CS-GO 3% (w/w) as water-solubilising agents for rotenone pesticide was evaluated for the first time. The CS-GO nanocomposites were characterised by using FTIR, SEM, TEM and XRD analyses. The interaction of nanocomposites with rotenone was investigated through adsorption study involving several experimental parameters such as solution pH, initial concentration and contact time. Additionally, the desorption study was carried out using HCl and NaOH as desorption agents. Based on correlation coefficient (R²), the adsorption kinetic data were best described by the pseudo-first order equation while the adsorption equilibrium data were correlated well with the Langmuir isotherm model. The GO nanoparticle aggregates have a spherical shape with size ranged from 1.40 to 34.7 nm. The crystallinity of CS was increased following interaction with GO, whereby the intensit.....

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This    research    aimed    to    prepare    and    characterise    chitosan-graphene    oxide     (CS-GO) nanocomposites,  namely CS-GO  1%  (w/w),  CS-GO  2%  (w/w)  and  CS-GO  3%  (w/w).  In  this  research, the potential of CS-GO nanocomposites as water-solubilising agents for rotenone was  evaluated.  The CS-GO  nanocomposites  were characterised  by using  fourier  transform  infrared  (FTIR)  spectrometer,  scanning  electron  microscope  (SEM),  transmission  electron  microscope  (TEM),  X-ray  diffraction  (XRD)  spectrometer  and  thermogravimetric  analyser  (TGA).  The  interactions  of  nanocomposites  with  rotenone  were  carried  out  through  adsorption  studies   by using  Ultraviolet-Visible  (UV-Vis)  spectrometer,  involving  several  experimental   parameters such as solution pH, initial concentration and contact time. The adsorption behaviour of  rotenone was studied by .....

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