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- W2141305145 abstract "Magnetic multi-walled carbon nanotubes-Fe3C nanocomposite was synthesized by chemical vapor deposition process and was used as an adsorbent for the removal of acid dye Acid Red 88 (AR88) from aqueous solution. The effects of various parameters such as initial AR88 concentration (10–58 mg L−1), pH (3.1–11.3) and temperature (20–60°C) were investigated. The properties of this adsorbent were characterized by X-ray diffraction, high-resolution transmission electron microscopy, energy dispersive X-ray analysis, fourier transform IR, N2 adsorption/desorption isotherms, and particle size distribution by laser diffraction. The experimental data were analyzed by the Langmuir and Freundlich models of adsorption. Equilibrium data fitted well with the Freundlich model. Kinetic adsorption data were analyzed using the Lagergren pseudo-first-order kinetic model, the pseudo-second-order model and the intraparticle diffusion model. The regression results showed that the adsorption kinetics was more accurately represented by pseudo-second-order model. Thermodynamics parameters, Gibbs free energy (ΔG0), enthalpy (ΔH0), and entropy (ΔS0), were calculated. All ΔG0 values were negative. The values of ΔH0 and ΔS0 were −4.70 and −7.98 J mol−1 K−1, respectively, indicating that adsorption of AR88 onto magnetic multi-walled carbon nanotubes nanocomposites was spontaneous and exothermic in nature." @default.
- W2141305145 created "2016-06-24" @default.
- W2141305145 creator A5064148144 @default.
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- W2141305145 date "2013-08-28" @default.
- W2141305145 modified "2023-09-27" @default.
- W2141305145 title "Adsorption Kinetics of Acid Dye Acid Red 88 onto Magnetic Multi-Walled Carbon Nanotubes-Fe<sub>3</sub>C Nanocomposite" @default.
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- W2141305145 doi "https://doi.org/10.1002/clen.201200458" @default.
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