Kostić, Miloš, Radović, Miljana, Velinov, Nena, Najdanović, Slobodan, Bojić, Danijela, Hurt, Andrew P. and Bojić, Aleksandar (2018) Synthesis of mesoporous triple-metal nanosorbent from layered double hydroxide as an efficient new sorbent for removal of dye from water and wastewater. Ecotoxicology and Environmental Safety, 159. pp. 332-341. ISSN 0147-6513 (doi:https://doi.org/10.1016/j.ecoenv.2018.05.015)

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Abstract

In this study, co-precipitation synthesis of the mesoporous triple-metal nanosorbent from Fe, Cu, Ni layered double hydroxide (FeCuNi-LDH), on the basis of the data obtained from the TG analysis was carried out. The FTIR spectroscopy and XRD results confirm the formation of CuO, NiO and Fe O nanoparticles, while the EDX analysis does not show significant variations on the surface in elemental composition. BET analysis shows that FeCuNi-280 (FeCuNi-LDH calcinated at 280 °C) with mesoporous structure, has larger surface area compared to FeCuNi-LDH and FeCuNi-550 (FeCuNi-LDH calcinated at 550 °C). The value of pH of FeCuNi-280 is found to be 8.66. Obtained FeCuNi-280 material showed the ability for efficient removal of dye Reactive Blue 19 (RB19) from water, with a very high sorption capacity of 480.79 mg/g at optimal conditions: the sorbent dose of 0.6 g/dm , stirring speed of 280 rpm and pH 2. The kinetics results of the sorption process were well fitted by pseudo-second order and Chrastil model, and the sorption isotherm was well described by Sips, Langmuir and Brouers-Sotolongo model. FeCuNi-280 was easily regenerated with aqueous solution of NaOH, and reutilization was successfully done in five sorption cycles. The present study show that easy-to-prepare, relatively inexpensive nanosorbent FeCuNi-280 is among the best sorbents for the removal of RB19 dye from water solution and wastewater from textile industry in wide range of pH.

Item Type:	Article
Uncontrolled Keywords:	Layered double hydroxide; Mesoporous triple-metal nanosorbent; Reactive Blue 19; Kinetics; Isotherms; Wastewater
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Science (SCI)
SWORD Depositor:	Publications Router
Last Modified:	25 Sep 2018 12:07
URI:	http://gala.gre.ac.uk/id/eprint/20356

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