Comparison of the filtration performance of konjac glucomannan-based aerogel and cellulose acetate

Abstract

Abstract Konjac glucomannan (KGM)-based aerogel was used as filtration material to compare filtration performance with conventional cellulose acetate (CA). KGM-based aerogel showed a three-dimensional network structure and higher specific surface area and porosity, providing a longer channel and larger adsorption interface for smoke stream and promoting the multidirectional interception for particulate matters (PMs), which was superior to the parallel fiber structure of CA. The smoke analyzer based on leaf burning was utilized to detect the filtration performance. KGM-based aerogel was significantly better than CA for total PMs, nicotine, and tar interception, with an increase of 11.6%, 22.4%, and 10.3%, respectively.