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- W2783252126 abstract "Synthesis of natural clay magnetite composite has been done. The composite was applicated as adsorbent of methylene blue dye in aqueous solution. natural clay was activated with acid solution, synthesis of natural clay magnetite composite was done by coprecipitation method in the molar ratio Fe 2+ : Fe 3+ = 1 : 2 at temperature 85 ο C. Characterization of the synthesis results is done by XRD and FTIR. Adsorption using batch system with the optimum pH, kinetic and equilibrium aspects of adsorption were studied. The characterization results shows that iron oxide Fe 3 O 4 (magnetite) can be composited with natural clay. The activated and natural clay magnetite composite can adsorbed methylene blue dye from aqueous solution, with the optimum adsorption at pH 3. Adsorption of those adsorbent followed the kinetic eqution of pseudo order 2 with reaction rate constant for activated and natural clay magnetite composite was 1.68 x 10 -3 and 7.13 x 10 -3 g/mg.minute. The isotherm adsorption is Langmuir isotherm with adsorption capacity was 1.72 x 10 -4 mol/g and 1.84 x 10 -4 mol/g. This kinetic reactions model shows that the natural clay magnetite composite is able to adsorbed rhodamine B in aqueous solution and accelerated separation of adsorbent from aqueous phase by external magnet field. Keywords: natural clay, magnetite, composite and adsorption." @default.
- W2783252126 created "2018-01-26" @default.
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- W2783252126 date "2017-10-03" @default.
- W2783252126 modified "2023-09-25" @default.
- W2783252126 title "Synthesis of Natural Clay Magnetite Composite as Adsorbent of Methylene Blue" @default.
- W2783252126 doi "https://doi.org/10.20527/jstk.v11i2.4042" @default.
- W2783252126 hasPublicationYear "2017" @default.
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