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Detailed Program
Paper Number : NA-P05
Time Frame : 12:00~13:30
Presentation Date : Friday, 28, November
Session Name : Nano-particles & Nano-structured Materials
Session Chair 1# : -
Session Chair 2# : -
CNTs Nano-Filter Grown on Ion-exchanged Zeolite-Porous Ceramics
Mr. Sangram Mazumder
Hanseo University
Here, we report a novel filter, named as the ¢®¡ÆCNT nano-filter¢®¡¾, composed of carbon nanotubes (CNTs) grown on an ion-exchanged zeolite coated porous ceramic substrate. Porous ceramic matrix mainly consisting of Al2O3 and SiO2 with an average solid content of 30% were processed by direct foaming method for this study. Zeolite NaA crystals were coated on the porous ceramic matrix and was ion exchanged with metal ions (Fe) for its catalytic activity in the synthesis of CNTs. The carbon nanotubes were grown directly upon the porous ceramic substrate using the Chemical Vapor Deposition (CVD) method. The Field Emission Scanning Electron Microscope (FESEM) and Transparent Electron Microscope (TEM) images of the synthesized CNTs on the porous ceramic substrate were observed for morphology, surface quality and structure analysis. This is here the basis for filtration. Crystallinity and defects of the CNTs were studied by Raman spectroscopy and thermo gravimetric analysis (TGA). The CNTs were seen to have grown as bush-like structures creating a close network inside the pores of the ceramic substrate, which shall owe to its filtration ability.
Acknowledgements : I would like to thank Prof. Dr. Ik Jin Kim for his kind cooperation and continuous follow-up towards my work. Also, I would like to thank Hanseo University for providing a suitable laboratory for the work.