S. Shiratori et al., Removal of toxic gas by hybrid chemical filter fabricated by the sequential adsorption of polymers, THIN SOL FI, 393(1-2), 2001, pp. 243-248
A high-performance chemical filter for toxic gas, such as ammonia or acetal
dehyde, was newly fabricated by forming a layer-by-layer self-assembly film
on the surface of a fiberglass cloth. The filter was greatly superior to t
he conventional active carbon filter. The newly developed filter showed rem
arkably high performance, because it can adsorb large amounts of gas molecu
les by both chemical and physical adsorption. Ammonia or acetaldehyde gases
react with the polyelectrolytes in the film and are adsorbed into the mult
ilayers of the films. In this paper, we report that the performance of the
chemical filter is dependent on the nano-structure of the thin polymer film
coated on the fiberglass cloth. (C) 2001 Elsevier Science B.V. All rights
reserved.