Effects of Particle Size and Morphology on Filtration of Airborne Nanoparticles

DOI Web Site Web Site 参考文献40件
  • Wang Jing
    ETH Zurich, Institute of Environmental Engineering Empa, Analytical Chemistry

この論文をさがす

抄録

The rapid development of nanotechnology brings new challenges to aerosol filtration, which plays a critical role in controlling pollution and protecting the environment and human health. The filtration of airborne nanoparticles is becoming an important issue as they are produced in large quantities from material synthesis and combustion emission. Recent studies indicate that the filtration efficiency increases as the particle size decreases down to 2 – 3 nm. Thus the conventional filters are working well against the nanoparticles. The filtration of non-spherical nanomaterials, such as carbon nanotubes and nanoparticle agglomerates, possesses different filtration characteristics compared to spherical particles. The interception effect for elongated particles is stronger than for spheres with the same mobility, thus higher filtration efficiency is achieved. Modeling results based on the single-fiber theory are compared to experimental data and then used to predict the difference between the filter penetrations for agglomerates and spheres. The effects of the filtration velocity, filter fiber size, solidity and thickness are systematically investigated.

収録刊行物

参考文献 (40)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ