|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||2016 Functional Nanomaterials: Emerging Nanomaterials and Techniques for 3D Architectures
||Multifunctional Self-cleaning Nanofiber Membranes for Water Filtration
||Salman Arshad, Sobia Dilpazir, Mohammad Usman
|On-Site Speaker (Planned)
Electrospun nanofibers possess several attractive attributes that make them potential candidate for water filtration membranes. However, one issue that limits the use of any filter is the removal of the accumulated filtered material from the filter. In this study, we use photocatalysis for bio-species oxidation as a mechanism for developing self-cleaning multifunctional filters. Polyacrylonitrile nanofibers loaded with 25 nm titanium dioxide nanoparticles in 10 – 60 weight percent range were fabricated by electrospinning. The exposure of titanium dioxide nanoparticles was significantly enhanced by post fabrication etching by UV-ozone as evidenced by high resolution scanning electron microscopy images. Complete photodegradation of 5 ml of 10 ppm methylene blue was achieved in ~30 minutes by using only 5 mg of nanofibers. The photocatalytic degradation capability remains same even after multiple cycles. These multifunctional nanofibers have a great potential for use as anti-fouling filters for bacteria and virus removal from drinking water.