Synthesis and characterization of Zeolite:TiO2 nanocomposite B. Barghi a , M. Zendehdel a* a Department of Chemistry, Faculty of Science, Arak University, Arak38156-8- 8349; Iran *Corresponding author: m-zendehdel@araku.ac.ir 1. Introduction In today’s word, many efforts have been made on synthesis, characterization and application of TiO2 nanocomposite. Since there are a lot of opportunity to making improvement and modification in the existing method, so synthesis and characterization of new compound will be breakthrough to future designing. In this study we considered a zeolite as a substrate for TiO2. then we characterized the feature of synthesized composite by FT-IR, XRD, SEM, DRS. 2. Experimental Part or Theoretical Details The starting materials used in this study included Silica gel, sodium hydroxide, aluminum hydroxide, titanium dioxide and deionized water. All chemical materials supplied by Merck and aqueous solutions were made dissolving them in deionized water. XRD and FT-IR, were used to characterization of obtained product. At first different percent of TiO2 was mixed with zeolite gel and then nanocomposite of Zeolite:TiO2 synthesized with hydrothermal method at 100˚C for 26 h. The powder was filtered and characterized with FT-IR, XRD, TGA, DRS and SEM. 3. Results and discussion X-ray diffraction pattern of Zeolite:TiO2 is shown in Fig.1, Some diffraction peaks such as 2θ= 6.20˚, 10.10˚, 18.65˚, 23.50˚, 29.45˚ and 31.25˚ can be indexed as the Zeolite and 2θ= 25.30˚, 37.80˚, 40.10˚ can be indexed as the Titanium Dioxide. Figure 2 demonstrates the infrared spectra of TiO2/zeolite. A shoulder between 3600 and 3450 cm-1 is assigned to the asymmetrical stretching of H–O–H or O–H bonds, and the bending vibration of the water molecules appears in 1750–1550 cm-1. and in these peaks of 1050–950 and 550–400 cm-1 are Si–O and Al–O bonds respectively. In addition, the Ti–O bond appears in the peaks of 650–500 cm-1. So, it can be concluded that the nano-TiO2 partic
