PREPARATION, CHARACTERIZATION AND BIOSORPTION PROPERTIES OF CHITOSAN-MWCNTS NANOCOMPOSITE FOR REMOVAL OF CADMIUM FROM AQUEOUS SOLUTION

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ABBASI MAHMOUD; YOUSEFI RAZIEH

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Journal: JOURNAL OF APPLIED CHEMISTRY Year:2016 | Volume:10 | Issue:37 Page(s): 85-96

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Title

PREPARATION, CHARACTERIZATION AND BIOSORPTION PROPERTIES OF CHITOSAN-MWCNTS NANOCOMPOSITE FOR REMOVAL OF CADMIUM FROM AQUEOUS SOLUTION

Author(s)

ABBASI MAHMOUD | YOUSEFI RAZIEH | Issue Writer Certificate

Keywords

CHITOSAN- MWCNTSQ1

CADMIUMQ1

NANO COMPOSITEQ1

ADSORPTIONQ2

ISOTHERMSQ2

Abstract

The removal of Cd (II) ions from aqueous solution by synthesized chitosan-mwcnts (ch-mwcnts) was investigated in a batch ADSORPTION system. The morphological of modified chitosan was characterized by scanning electron microscopy (SEM), fourier transfer infrared spectroscopy (FT-IR) and thermo gravimetric analysis (TGA). The effect of various factors such as; initial concentration of CADMIUM ions, initial pH and temperature of the solution for removal of Cd (II) was studied. The experimental isotherm data were analyzed by Langmuir, Freundlich, Dubinin–Radushkevich and Temkin models. Equilibrium data agreed well with Langmuir isotherm, Based on this model, the maximum ADSORPTION capacity of nanocomposite of ch-mwcnts for Cd (II) was obtained to be 24.27 mg/g at pH=6. A pseudo-second order model has been proposed to correlate the experimental data (R2=0.996). The thermodynamic parameters such as standard Gibb’s free energy (DGo), standard enthalpy (DH˚), standard entropy (DSo) and activation energy (Ea) were evaluated by applying the Van’t Hoff and Arrhenius equations and were determined as -0.088 to -1.208 kJ/mol, 16.6 kJ/mol, 56 J/ mol. K and 5.58 kJ/ mol, respectively.

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APA: Copy

ABBASI, MAHMOUD, & YOUSEFI, RAZIEH. (2016). PREPARATION, CHARACTERIZATION AND BIOSORPTION PROPERTIES OF CHITOSAN-MWCNTS NANOCOMPOSITE FOR REMOVAL OF CADMIUM FROM AQUEOUS SOLUTION. JOURNAL OF APPLIED CHEMISTRY, 10(37), 85-96. SID. https://sid.ir/paper/243305/en

Vancouver: Copy

ABBASI MAHMOUD, YOUSEFI RAZIEH. PREPARATION, CHARACTERIZATION AND BIOSORPTION PROPERTIES OF CHITOSAN-MWCNTS NANOCOMPOSITE FOR REMOVAL OF CADMIUM FROM AQUEOUS SOLUTION. JOURNAL OF APPLIED CHEMISTRY[Internet]. 2016;10(37):85-96. Available from: https://sid.ir/paper/243305/en

IEEE: Copy

MAHMOUD ABBASI, and RAZIEH YOUSEFI, “PREPARATION, CHARACTERIZATION AND BIOSORPTION PROPERTIES OF CHITOSAN-MWCNTS NANOCOMPOSITE FOR REMOVAL OF CADMIUM FROM AQUEOUS SOLUTION,” JOURNAL OF APPLIED CHEMISTRY, vol. 10, no. 37, pp. 85–96, 2016, [Online]. Available: https://sid.ir/paper/243305/en

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