In this study, Eichhornia crassipes (EC) was exposed to Chemical modification using citric acid to enhancement adsorption capacity and form Modified Nano Cellulose Crystalline (MNCC) powders and comparison study was performed to remove two different dyes as Reactive blue 21 (RB21) and Crystal violet (CV). Characterization of MNCC was investigated by X-Ray Diffraction analysis (XRD), Fourier Transform infrared spectroscopy (FTIR), Thermal Gravimetric Analysis (TGA), Dynamic Light Scatting (DLS) and Transmission electron microscopy (TEM) as well as Scanning Electron Microscopy (SEM) and results, prove that MNCC is in Nano scale and has crystalline structure as well as ester form. Examine parameters such as adsorbent dose (0.1-1.00 g/40 mL), initial pH (1-10), contact time (5-120 min) and initial concentration dyes (5-10 ppm). Among the three isotherm models (Langmuir, Freundlich, and Temkin), the equilibrium adsorption confirmed and fitted well to the Langmuir isotherm model. Kinetic study showed agreement the pseudo-second-order kinetic model and Intraparticle diffusion model.
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| http://dx.doi.org/10.1016/j.carbpol.2020.116202 | DOI Listing |
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