Please use this identifier to cite or link to this item:
http://repositorio.ufla.br/jspui/handle/1/40571
Title: | Performance of magnetite/layered double hydroxide composite for dye removal via adsorption, Fenton and photo-Fenton processes |
Keywords: | Layered double hydroxide Magnetite Fenton-like reaction Dye removal Magnetita Hidróxidos Duplos Lamelares (HDLs) Corantes Reação tipo Fenton Remoção de corante |
Issue Date: | Oct-2019 |
Publisher: | Elsevier B.V. |
Citation: | GONÇALVES, R. G. L. et al. Performance of magnetite/layered double hydroxide composite for dye removal via adsorption, Fenton and photo-Fenton processes. Applied Clay Science, [S.I.], v. 179, Oct. 2019. Não paginado. |
Abstract: | In order to investigate the effect of the addition of magnetite in layered double hydroxide (LDH) from a structural and catalytic point of view, the synthesis of LDH containing cobalt and chromium (CoCr-LDH) was performed with or without Fe3O4. These materials were systematically characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), N2 adsorption Isotherms, Fourier transform infrared spectroscopy (FTIR), and evaluated as adsorbents and heterogeneous catalysts in Fenton-like and photo-Fenton-like reactions. The results showed that the magnetite was prepared and incorporated to the LDH with success, forming a composite providing magnetic properties and promoting alteration in the morphology, quantity and size of the LDH pores. The evaluation of the adsorption and oxidation processes utilizing the Fe3O4/LDH composite showed to be more efficient than for pure LDH. This better performance can be explained by higher surface area and larger pores for Fe3O4/LDH which allow a more effective contact with the dye solution and more proximity of large molecules like those of Reactive Black with the sites where the OH• radicals are formed. |
URI: | https://www.sciencedirect.com/science/article/abs/pii/S0169131719302108#! http://repositorio.ufla.br/jspui/handle/1/40571 |
Appears in Collections: | DQI - Artigos publicados em periódicos |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.