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O: Fachverband Oberflächenphysik

O 9: Surface Reactions

O 9.6: Vortrag

Montag, 17. März 2025, 11:45–12:00, H25

Sustainable argon irradiated MWNT-based filters for efficient remediation of methylene blue dye from wastewater: characterization and mechanism — •Emad Elsehly — Physics Department, Faculty of Science, Damanhour University, 22516, Damanhour, Egypt

This study handles the irradiation of the multi-walled carbon nanotubes by argon ion beam and their potential application for dye removal from wastewater. The obtained data revealed that Argon ion irradiation can induce various structural changes and defects in MWNTs as confirmed by Raman spectroscopy. Moreover, the structural integrity of R-MWNTs is preserved during irradiation as shown by SEM. R-MWNTs yielded smaller crystallites, reaching a size of 4.4 nm. The adsorption efficiency of R-MWNTs was examined by remediation of methylene blue (MB) from wastewater. The results demonstrated that the remediation percentage of R-MWNTs enhanced and could reach 98%. The adsorption mechanism of methylene blue onto R-MWNTs is spontaneous, and almost chemical adsorption process. R-MWNTs have greater surface area and more active sites for adsorption. The irradiation tool offers an alternative approach to enhance the structure of MWNTs-based filters and present a highly effective solution for the removal of dyes from wastewater.

Keywords: Argon irradiation; XRD and Raman spectroscopies; MWNT-based filters; Sustainable nanomaterials; MB-dye