Effects of pretreatment conditions on the adsorption and reactive properties of titanium dioxide

I&EC 121

Ronald J. Willey, r.willey@neu.edu, Edward Viveiros, and Bruno Notari, Brunotari@aol.com. Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, 342 SN, Boston, MA 02215
Much interest exists in the application of titanium dioxide (titania) and related mixed oxides for catalytic applications. As covered in other papers devoted to this session, many exciting examples will be presented. What is still not well understood is a description of why titania has such a range of activity. In our work, we investigated the adsorption of 2-Chloroethyl Ethyl Sulfide (2-CEES) to determine whether differing annealing conditions altered surface behavior. Oxidized and reduced samples of several commercial samples of titania were prepared by thermal annealing at 400 °C and 200 torr oxygen and hydrogen, respectively, and desiccated overnight prior to observation. FTIR spectroscopy was utilized to monitor adsorption and catalytic behavior of these annealed samples. The presentation will concentration of the results found in this study.