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001-es BibID:	BIBFORM116358
035-os BibID:	(cikkazonosító)145903 (Scopus)85170653984 (WoS)001075901500001
Első szerző:	Le, Van Thuan
Cím:	Mn3O4/activated carbon nanocomposites for adsorptive removal of methylene blue / Van Thuan Le, Thi Kieu Ngan Tran, Nguyen Khoa Dang, Van Dat Doan, Vy Anh Tran, Yasser Vasseghian, Tejraj M. Aminabhavi
Dátum:	2023
ISSN:	1385-8947
Megjegyzések:	Recently, the recycling and reuse of biomass wastes to produce valuable materials have garnered significant attention due to their substantial economic and environmental benefits. In this study, spent coffee grounds (SCGs) were utilized to prepare nanocomposites through a one-pot carbonization approach under optimal conditions of 550 ?C, 2 h, and 1:0.5 mass ratio of SCGs to MnSO4?H2O. The produced Mn3O4/activated carbon nanocomposites (Mn3O4/AC) were employed for adsorption studies of methylene blue (MB). The mechanism of Mn3O4/AC formation was comprehensively elucidated, and its morphological and structural features were determined by XRD, SEM, FTIR, TEM, and BET methods. Batch experiments were performed to examine the effect of different parameters on the adsorptive removal of MB. The findings have demonstrated a maximum uptake of Mn3O4/AC for MB at 77.02 mg g?1. The most appropriate models for predicting the adsorption kinetics and equilibrium data were determined to be the pseudo-first-order kinetic model and the Freundlich isotherm, respectively. Furthermore, the composite exhibited remarkable reusability and stability, retaining over 90% of MB removal efficiency even after undergoing five cycles of reuse. The adsorption mechanism of the dye was clarified based on the physical properties of the adsorbent, including stacking interactions, pore-filling, hydrogen bonding, and electrostatic interactions. The Mn3O4/AC composite holds promise for future investigations concerning wastewater-containing dyes.
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Spent coffee grounds Methylene blue Mn3O4 Activated carbon Adsorption
Megjelenés:	Chemical Engineering Journal. - 474 (2023), p. 1-12. -
További szerzők:	Tran, Thi Kieu Ngan Dang, Nguyen Khoa Doan, Van Dat Tran, Vy Anh Vasseghian, Yasser Aminabhavi, Tejraj M.
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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