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PREPARATION AND PHOTOCATALYTIC APPLICATION OF MAGNETIC-PEDOT-TiO2 NANOCOMPOSITE MATERIAL

BROWSE_DETAIL_CREATION_DATE: 01-08-2016

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BROWSE_DETAIL_TYPE: Thesis

BROWSE_DETAIL_SUB_TYPE: Masters

BROWSE_DETAIL_PUBLISH_STATE: Unpublished

BROWSE_DETAIL_FORMAT: PDF Document

BROWSE_DETAIL_LANG: English

BROWSE_DETAIL_SUBJECTS: Chemistry,

BROWSE_DETAIL_CREATORS: Erabe, Naden Mohammed Ali (Author),

BROWSE_DETAIL_CONTRIBUTERS: Kaya, Murat (Thesis Advisor),

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Photocatalyst, TiO2, PEDOT, magnetic separation, waste water treatment   


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The deficiency of traditional wastewater treatment methods to efficiently eliminate the pollutants results in the investigation of new, effective and low-cost treatment techniques. In order to satisfy the strict environmental adjustments, the oxidation of these organic compounds is significant. The radicals exhibit excellent oxidizing power compared to other usual oxidants and provide the degradation completely. The methods, named as advanced oxidation processes (AOP’s), consists of homogenous and heterogeneous photocatalytic processes. In these processes, the activation of semiconductor provides the formation of electrons and holes. The reaction of this hole with water to form hydroxyl radical provides the series of reduction-oxidation reaction to remove the pollutants. Nowadays, especially TiO2 as a semiconductor photocatalyst, has gained great importance due to its possible utilization in the air or water-waste industry. It supplies low-cost, eco-friendly, and sustainable treatment method. Yet, elimination of small photocatalyst particles from large volumes of water requires further effort. This executes a major disadvantage to its utilization.      v  In this thesis, in order to get a material with high photocatalytic activity and wellseparation property, we demonstrate a facile procedure to fabricate a magnetically recyclable novel SiO2-CoFe2O4/PEDOT/TiO2 nanocomposite material as a photocatalyst. The characterization of nanocomposite catalysts were done by scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution- transmission electron microscopy (HR-TEM) energy dispersive XRay coupled with SEM and Raman Spectroscopy. The phtocatalytic activity of SiO2-CoFe2O4/PEDOT/TiO2 nanocomposite material was checked into the decolorisation of methylene blue (MB) under UV light irradiation. The photocatalytic activity of TiO2 and PEDOT were also revealed inorder to make comparison with the final structure. As a result, the presence of PEDOT polymer and the synergetic interaction of TiO2 with PEDOT play a very important role in the photocatalytic reaction. Besides the high photocatalytic activity, SiO2CoFe2O4/PEDOT/TiO2 nanocomposite material has an advantage of magnetic separation. The presence of PEDOT not only increases the photocatalytic activity but also allows the addition of magnetic nanoparticles which gives the magnetic property to the final structure


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