Synthesis of Inorganic-organic Hybrid Nano Structures based on Zeolite / Fe3O4 Zohreh Mortezaeia , Mojgan Zendehdel*a ,Mohammad Ali Bodaghi Farda a Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8- 8349; Iran *Corresponding author: m-zendehdel@araku.ac.ir 1. Introduction The zeolites are a crystalline aluminosilicates with well defined channel and cavity that these cavities contain metal cations and removable water. One of the good pores structure is Y zeolite consist almost spherical 12 Ao cavities [1[ Some articles published report to synthesize magnetic zeolites, such as Horikawa et al., that synthesized magnetic zeolites by nickel ion exchanging sodium ion in the synthesis process. Nah prepared magnetic-modified zeolite (MMZ) was by urethane coating, and other investigators synthesized magnetic carrier by magnetic tetroxide iron (Fe3O4) modifying zeolites to separate metallic contaminants from water. Because the Fe3O4 particles contacting with zeolite were naked and then oxidized, they easily lost magnetic. 2. Experimental Synthesis of Fe3O4 Fe3O4 nanoparticles were synthesized by coprecipitation of FeCl3.6H2O and FeCl2.4H2O at the molar ratio of following condition (Fe3+ : Fe2+ = 2:1), and they were dissolved in deionized water. After stirring for 30 min, NH3 was added to the solution. The Fe3O4 nanoparticle filtered and washed five times with deionized water [2]. Fe3O4/NaP composites Different amount of Fe3O4 was added to a fresh NaP gel with the molar composition of 320 H2O: 16 NaOH : 1 Al(OH)3 : 15 SiO2 and mixed with agitation to form a Fe3O4/NaP gel, and finally placed in an autoclave at 100 0C for 24 h. After cooling the reaction mixture to room temperature, filtering, washing with water, and drying in air, the solid product Fe3O4/NaP composite was recovered from the mixture [3-6]. Synthesis of Inorg-Org Hybrids Organic modification of Fe3O4/NaP composites with 3-chloro propyltriethoxysilane (3-ClPTES) was performed by stirring 0
