Synthesis and characterization of Fe3O4/kaolin magnetic nanocomposite and its application in wastewater treatment

다국어 초록 (Multilingual Abstract)

Fe3O4/kaolin magnetic nanocomposites were prepared by chemical co-precipitation method. Thenanocomposites were characterized using various instrumental techniques. The prepared nanocompositeswere tested and evaluated as an adsorbent in the removal of the anionic C.I. Direct Red 23 dye.
The effects of contact time, initial dye concentration, adsorbent dose, temperature and initial pH of thesolution on the adsorption process were studied. The removal efficiency reached 100%. The resultsshowed that linearized Langmuir isotherm is applicable with a maximum adsorbent capacity of22.88 mg g 1. Adsorption process is spontaneous, endothermic, and follows the pseudo-second ordermodel within the range of temperatures studied.

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