Fig. 4
From: Graphene Oxide-Based Nanocomposites Decorated with Silver Nanoparticles as an Antibacterial Agent
TEM images of agglomerated GO flakes (a), GO flakes after ultrasonic treatment (b), agglomerated Ag-NPs (c), Ag-NPs after ultrasonic treatment (d), and GO-Ag (e, f). The decrease of the average GO particle size after ultrasonic treatment was caused by defragmentation or folding of the GO flakes. The decrease of the average Ag size after ultrasonic treatment was caused by defragmentation of Ag agglomerates. Note: Arrows point to Ag-NPs/agglomerates