Photocatalytic Degradation of Amaranth Dye over Immobilized Nano-crystals of TiO2
نویسنده
چکیده
-The present work is focused on the heterogeneous photocatalytic degradation of Amaranth dye over immobilized nano-crystals of TiO2. Immobilization has been an acceptable approach to overcome the drawbacks encountered with powder suspensions. Immobilization is performed using polyvinyl alcohol-formaldehyde binder. This method of immobilization does not require thermal heating at high temperature. Combination of adsorption and photodegradatoin processes is also studied. Adding high adsorption capacity activated carbon to photoactive Titanium dioxide induces strong beneficial effects in the removal of Amaranth dye. Key-Words: Photodegrdation, Nano sized TiO2 powder, Adsorption, Activated carbon.
منابع مشابه
Photocatalytic Mineralization of Methylene BlueAqueous Solutions by Ag/TiO2 Nano Composite
Nanocomposite of Ag/TiO2 and nanocrystalline TiO2 were prepared by using TiCl4 as a precursor in a simple sol-gel process. The prepared photo-catalysts were characterized by X-ray diffraction (XRD), scanning electron micrographs (SEM), energy dispersive X-ray microanalysis (EDX), transmission electron microscopy (TEM) and diffuse reflectance spectroscopy (DRS). A complete and effective photocat...
متن کاملNitrogen doped TiO2 for efficient visible light photocatalytic dye degradation
In this study, Nitrogen doped TiO2 photocatalysts were prepared by the sol gel method and physicochemical properties were characterized by X-ray diffraction (XRD), and scanning electron microscopy (SEM), photoluminescence, and energy dispersive X-ray spectroscopy (DRS) techniques. The XRD data indicated that the nanoparticles had the same crystals structures as the pure TiO2</su...
متن کاملSonosynthesis and Characterization of TiO2/ZrO2 Nanocomposite and Photocatalytic degradation of Congo red Dye under UV Light
NanoTiO2 , nanoZrO2 and TiO2 /ZrO2 nanocomposite were prepared via sol gel method by using ultrasonic irradiation. The precursor sol of zirconium was prepared from an aqueous solution of ZrCl4 and titanium tetra 2-propoxide was diluted by 2-propanol and deionized water The TiO2 /ZrO2 nanocomposite was synthesized from directly mixing Titanium dried gel into Zirconium gel. The reaction mixture w...
متن کاملمقایسه تجزیه فتوکاتالیستی رنگ سیاه 26 از فاضلاب سنتتیک با استفاده از نانو ذرات دی اکسید تیتانیوم تثبیت شده بر الیاف گونی و سوسپانسیون
Background and Objectives: The development a low-cost and high efficiency water treatment technology to decolorize the organic dye effluents is desirable due to overwhelming discharge of organic synthetic dyes into the natural water cycle during the dying process. In this study, the decolorization of Acid Black 26, as the model organic contaminant, was investigated using immobilized nano-sized ...
متن کاملPhotocatalytic Degradation of Diazinon From Marine Source Using TiO2/SiO2 Thin Layer Coated on Glass
TiO2 photo catalyst was prepared in presence of nano SiO2 and Hydroxy Propyl Cellulose (HPC) by sol gel method with Titanium Tetra IsoproPoxide (TTIP) as titanium precursor. Additional effect of HPC in preparation of nano catalyst, and photo catalyst properties measured and characterized by FT-IR, FT-Raman and SEM. The catalyst size and structural properties of the film were determined by .-Ray...
متن کامل