Synthesis and characterization of magnetic halloysite–chitosan nanocomposites: use in the removal of methylene blue in wastewaters
作者： Ezgi Türkeş , YEŞİM Sağ Açıkel , None
DOI: 10.1007/S13762-019-02550-W
关键词:
摘要: Magnetic halloysite–chitosan (MHNT-CTN) nanocomposites were synthesized by turning magnetic halloysite nanotubes (MHNTs) into using biopolymeric chitosan (CTN). The properties of pure (HNTs) achieved the co-precipitation method, and MHNTs synthesized. characterization MHNT-CTN nanocomposite states components forming was performed FTIR, TGA, TEM, VSM. Methylene blue (MB) adsorption on investigated as a function medium pH, mass ratio material, initial MB concentration. optimum conditions for determined pH 8.0, in solution volume 25 mL, 25 mg MHNT-CTN, MHNT-to-CTN 2:1. highest efficiency MHNT2-CTN1 reached at an concentration 20 mg/L, it found to be 83.9%. equilibrium data obtained from studies used investigate compatibility with Langmuir, Freundlich, Redlich–Peterson models. It out that kinetics compatible pseudo-second-order model.
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