Figure 1
From: Adhesion characteristics of solution treated environmental dust

SEM micrographs of collected and solution treated dusts: (a) collected showing various sizes, (b) collected dust clusters. (c) Solution treated dust with submicron/nano pores and pillars, (d) fine size pores in solution treated dust, (e) mechanically anchored solution treated dust, and (f) micro-cracks on solution treated dust surface.