Catalytic activity of Fe, Ti loaded TUD-1

Abstract

Bimetallic Fe and Ti incorporated into TUD-1 framework is successfully synthesized by sol-gel method. Tetraethyl ammonium hydroxide (TEAOH) was used as a structural directing agent. Silatrane, iron (III) chloride hexahydrate. and titanium (IV) isopropoxide were utilized as the silica, iron, and titanium sources, respectively. The synthesized Fe. Ti-TUD-1 was characterized by XRD. N2 adsorption/desorption. XRF. and DRUV. The obtained material has disordered mesoporous structures with high surface area (708-769 m2/g). To study the catalytic activity of the synthesized Fe.Ti-TUD-1. phenol hydroxylation using hydrogen peroxide as oxidizing agent was selected as a model reaction. Many factors were investigated. including reaction temperature. reaction time. amount of metals loaded. amount of catalyst, and molar ratio of reactants. The catalytic activity and selectivity of phenol hydroxylation were studied. and showed the high phenol conversion up to 93%, with the selectivity of hydroquinone reached 53%. at 90 °C for 1 h. using 30 mg of 0.01Fe.0.01 Ti-TUD-1 catalyst and 1:3 phenol:H2O2.