Removal of anionic dye Eriochrome Black-T using nanocomposites derived from slag
by J. Baalamurugan; V. Ganesh Kumar; C.G. Anjali Das; B.S. Naveen Prasad; K. Govindaraju
International Journal of Nanotechnology (IJNT), Vol. 18, No. 5/6/7/8, 2021

Abstract: The present investigation highlights slag based nanocomposites in the removal of the anionic dye Eriochrome Black T (EBT) an anionic dye with azo group (-N=N-) that is used as a dyeing agent in textile industries. Induction Furnace (IF) steel slag is generated from steel manufacturing process and is a mixture of inorganic elements mainly of silicon, iron, aluminium, and calcium. Slag nanocomposites are sintered at 600°C for 4 h. Removal properties of slag nanocomposites on EBT dye is determined using UV-Vis spectroscopy. The pH, concentration of dye, and amount of slag nanocomposite are the parameters that were studied with various contact times. Surface morphology of slag nanocomposite before and after dye removal has been analysed using Scanning Electron Microscope (SEM). FTIR analysis is used to analyse the structural bonding of slag nanocomposites with dye molecules. Formation of core-shell structure in slag nanocomposite with dye molecules is revealed and the removal efficiency of inorganic elements present in slag nanocomposites is explored.

Online publication date: Mon, 12-Jul-2021

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