However,the filter prepared at 1500 C showed lower collection efficiency than others at test particle sizes below 2 μm; this result can be attributed to reduced Brownian diffusion due to the increased grain size as mentioned in Fig. 2.
However,the filter prepared at 1500 Cshowed lower collection efficiency than others at test particlesizes below 2 μm; this result can be attributed to reducedBrownian diffusion due to the increased grain size asmentioned in Fig. 2.