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- W4230565510 abstract "Abstract The adsorption behavior of congo red (CR) on a magnetic composite (chitosan coated magnetic Fe3O4 particle) was studied as a function of initial solution pH, salt concentration, contact time, initial concentration of CR in batch mode. Change of solution pH, adsorption isotherms and their thermodynamic parameters (ΔG0, ΔH0, ΔS0) were discussed. There was little effect of initial pH and salt concentration. The experimental data were fitted to Langmuir, Freundlich, Temkin, Koble–Corrigan and Toth isotherm models. It was found that the Langmuir, Koble–Corrigan and Toth models provided good correlation. The adsorption capacity of CR was obtained from the Langmuir model and found to be 42.62, 55.68, 56.66 mg/g−1 at 295, 305, 315 K, respectively. The thermodynamic parameters indicated spontaneous and endothermic process. It was concluded that the adsorption process was main chemical adsorption and the dye-loaded adsorbent can be reused by regeneration with dilute NaOH solution." @default.
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- W4230565510 date "2012-01-01" @default.
- W4230565510 modified "2023-10-08" @default.
- W4230565510 title "Study of congo red adsorption onto chitosan coated magnetic iron oxide in batch mode" @default.
- W4230565510 doi "https://doi.org/10.5004/dwt.2012.2211" @default.
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