Catalytic Hollow Fiber Membranes
- Graduate student: David Dotzauer (Chemistry, MSU), Lu Ouyang (Chemistry, MSU)
- Primary Adviser: Dr. Merlin Bruening (Chemstry, MSU)
- Collaborating Advisor: Jorge Macanas, Pierre Aimar (Universite Paul Sabatier)
Working together with Jorge Macanas and Pierre Aimar at Universite Paul Sabatier, we are developing catalytic hollow fiber membranes. These materials should be much more attractive than ceramic membranes becuase of both lower cost and smaller interior diameters (100-300 um( that provide high surface areas and small diffusion distances within the fiber. Using layer-by-layer deposition, graduate student Lu Ouyang modified these membranes with catalytic nanoparticles as evidenced by the image in Figure 1. Both at Universite Paul Sabatier and now at Michigan State University Lu is investigating the catalytic properties of these figers in model reactions. We expect that this work will evolve into a three-way collaboration between Michgian State University, Universite Paul Sbatier, and IRCELYON to investigate the use of these fibers in reduction and oxidation of pollutants.
Figure 1. SEM Image of a hollow fiber coated with gold nanoparticles, which appear as the dots on a polymeric matrix
D. Dotzauer, S. Bhattacharjee, Y. Wen, M.L. Bruening, Nanoparticle-containing membranes for the catalytic reduction of nitroaromatic compounds, Langmuir 25 (2009) 1865-1871.
D. Dotzauer, J. Dai, L. Sun, M. L. Bruening, Catalytic membranes prepared using layer-by-layer adsorption of polyelectrolyte/metal nanoparticle films in porous supports, Nano Letters 10 (2006) 2268-2272.