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Abstract
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In the present work, reduced graphene oxide and four cationic LDH (Mg-Zn-Al-Fe) nano
composite has been developed by a facile one-step hydrothermal method. For the synthesis of this
composite, the addition of salts was performed at the presence of precipitation agent (NaOH and
Na2CO3) and graphene oxide simultaneously. At the hydrothermal condition, as well as
composite formation, graphene oxide is reduced. 1 Then synthesized nanocatalyst was tested for
Reactive red 43 removals under different reaction conditions and Batch adsorption experiments
were carried out at room temperature (25 °C) for determination of the isotherms and kinetic
models of the removal process. 2 The nanoparticles of adsorbent was characterized by X-ray
powder diffraction (XRPD), thermal gravimetric analysis (TGA), Fourier transform infrared
spectroscopy (FT-IR), specific surface area measurement. The size and morphology of
nanoparticles were inspected by scanning electron microscopy (SEM). By comparing the
adsorption capacity of Mg-Zn-Al-Fe LDH, this kind of nanocomposite can be more efficient
candidate for removal of reactive dye from contaminated water.
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