About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Synthesis, Characterization, Modeling and Applications of Functional Porous Materials
|
Presentation Title |
Porous Solids with Nanostructured Surfaces for Environmental Applications |
Author(s) |
Sharmila M. Mukhopadhyay, Wenhu Wang, Mallikarjuna Nadagouda |
On-Site Speaker (Planned) |
Sharmila M. Mukhopadhyay |
Abstract Scope |
This talk will focus on the multi-scale structural and functional aspects of porous three-dimensional carbon solids, where the pore surfaces are enhanced with covalently bonded carpet-like arrays of carbon nanotubes. This fractal surface geometry shows multiple advantages such as increased adsorption, improved mechanical interlocking with surrounding matrix, and increased thermal/electrical exchange with the surrounding. When the CNT arrays are further functionalized with catalytic nanoparticles, these materials act as highly active catalysts and sensors. One of the applications discussed will be catalytic degradation of environmental pollutants, where such materials have been activated with palladium nanoparticles and used to degrade halogenated pollutants such as atrazine, triclosan and carbon tetrachloride in water. Rapid and complete dechlorination is observed at ambient temperature. Moreover, repeatability tests show no evidence of material deterioration or catalyst degradation with multiple use. These materials therefore provide an ecofriendly, reusable, and cost-effective solution for pollutant control. |