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Preparation of graphene oxide/titanium dioxide nanocomposites and its adsorption for AS(III) ions

Kocabaş, Özlem Züleyha and Yürüm, Yuda (2013) Preparation of graphene oxide/titanium dioxide nanocomposites and its adsorption for AS(III) ions. In: 44th World Chemistry Congress, Istanbul, Turkey

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Abstract

Arsenic is a naturally occurring element, which is found in both in natural waters and industrial waters. Graphene oxide/Titanium dioxide (GO/TiO2) nanocomposites were prepared by using hydrothermal technique, their structure was observed and their adsorption performance for As(III) in water was evaluated. X-ray diffraction and Raman spectroscopy spectra confirmed the anatase structure of the TiO2 nanoparticles. The adsorption system is mainly depended on the As(III) concentration and follows a pseudo second-order kinetic model. The initial adsorption was rapid and reached equilibrium after 20 min. The overall equilibrium data were well fitted to Langmuir model for the nanocomposites. The adsorption results indicated that the GO/TiO2 nanocomposites can be a good adsorbent material to treat water that contaminated with As(III).

Item Type:Papers in Conference Proceedings
Subjects:T Technology > TP Chemical technology > TP0155-156 Chemical engineering
ID Code:22606
Deposited By:Yuda Yürüm
Deposited On:22 Jan 2014 21:02
Last Modified:22 Jan 2014 21:02

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