Fig. 4From: Green and Cost-Effective Synthesis of Tin Oxide Nanoparticles: A Review on the Synthesis Methodologies, Mechanism of Formation, and Their Potential Applicationsa TEM images of biosynthesized SnO2 NPs; b HR-TEM images of SnO2 NPs; c FE-SEM images of SnO2 NPs and d SAED patterns of SnO2 NPsBack to article page