Yoo H., Kim S-H, Lee A.R., Kwak S-Y
Seoul National University, KR
Keywords: dioxin, incineration, poly(vinyl chloride), PVC, TiO2, titanium dioxide
In our previous study, we first prepared TiO2 nanoparticle-encapsulating poly(vinyl chloride) (TEPVC) aiming at breakthrough to enhance the dispersibility of TiO2 nanoparticles in PVC matrix to maximize catalytic activities of TiO2 nanoparticles. The present study is aimed o measure and compare the amount of dioxin emitted from both TEPVC and PVC incineration, estimating the dioxin inhibition efficiency of TEPVC. TEPVC and PVC were first combusted in a well-controlled, small-scale incinerator at 700 C. Synthetic air (21% oxygen) was introduced as the air for combustion. The combustion gas was trapped using a thimble filter, water and diethylene glycol impingers in a cold-bath, and amberlite XAD-2 resin absorption tubes, sequentially along the stream. The thus-treated samples were extracted, spiked with internal standards, and purified through a multi-layer silica-gel column and alumina column. Finally, the samples were condensed and used for dioxin analysis based on HRGC/HRMS. The TEPVC shows reduced dioxin emission due to the enhanced dispersibility of TiO2 nanoparticles by nanoparticle encapsulation
Journal: TechConnect Briefs
Volume: 2, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 2
Published: May 20, 2007
Pages: 598 - 601
Industry sectors: Medical & Biotech | Personal & Home Care, Food & Agriculture
Topic: Environmental Health & Safety of Nanomaterials
ISBN: 1-4200-6183-6