Preparation and Characterization of Graphene Oxide – Attapulgite composite and its use in kinetic study of Alizarin Dye Adsorption from Aqueous Media | ||
| Egyptian Journal of Chemistry | ||
| Article 18, Volume 63, Issue 2, February 2020, Pages 561-572 PDF (2.1 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2019.15600.1946 | ||
| Authors | ||
| Ahmed Abbas* 1; Sundus Merza2 | ||
| 1chemistry ,collage of education for pure science (ibn al haithem), University of Baghdad | ||
| 2chemistry,collage of education for pure science (ibn al-haithem)university of baghdad ,baghdad,Iraq | ||
| Abstract | ||
| Attapulgite clay was modified in this study by the graphene oxide sheets and the clay was diagnosed before and after modification using several techniques (Fourier-transform infrared spectroscopy FT-IR, X-ray powder diffraction XRD, Scanning electron microscope SEM , energy dispersive spectroscopy EDX ) ,The surface of the attapulgite clay (before (Ata) after modification by graphene oxide (Ata-GO) ) was applied to adsorption of the Alizarin dye from its water solutions through the application of several kinetic models (pseudo first-order model , pseudo second -order model , intraparticle diffusion model ),It was found that the practical results follow pseudo second -order model. The process of modification on the surface of the mud has improved the adsorption properties where the quantity dye adsorbed is equal to ( 55 , 81 ) mg/g by the surfaces (Ata ,Ata-GO) respectively. | ||
| Keywords | ||
| Attapulgite; graphene oxide; Modified Adsorbent; Alizarin Dye | ||
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