2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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TechConnect Summit
Clean Technology 2008

Nanocomposite Materials for Bioelectrochemical and Photocatalytic Water Purification

M. Willert-Porada, A. Fuchs, A. Rosin, S. Bouazza, D. Laykam
University of Bayreuth, DE

Keywords:
bioelectrochemical, photocnanocomposite, ataytic, water recovery

Abstract:
The paper discusses development and utilisation of nanocomposite materials for new concepts of water recovery from biomass and for purification of waste water by a combined bioelectrochemical and photochemical treatment. Materials for bioelectrochemical water purification by means of e.g., microbial fuel cells, MFC, and materials for photocatalytic water pre-treatment before feeding a microbial fuel cell need a careful adjustment of bio-compatibility and durability as well as functional properties. In order to achieve such optimized balance of properties new methods for synthesis and encapsulation of nanopowders and nanofibers or immobilization of microbes are needed. Inorganically modified polymer nanocomposites, based on PFSA polymers, n-TiO2 or n-HAP and CNT were developed for an optimum performance to immobilize a biofilm utilized for water purification via a microbial fuel cell. For photocatalytic removal of toxic chemicals n-TiO2 with a high content of brookite has been synthesized by a novel process and encapsulated to yield a stable granule material, which can be utilized for water treatment, without hazardous release of nanoparticles. Details of the materials synthesis, structure and bioelectrochemical as well as photocatalytic performance will be presented.


Nanotech 2008 Conference Program Abstract