Fig. 3From: Renewable Lignosulfonate-Assisted Synthesis of Hierarchical Nanoflake-Array-Flower ZnO Nanomaterials in Mixed Solvents and Their Photocatalytic PerformanceSEM images of the 7 g SL synthesized ZnO with conditions of (a) calcination and ethanol, (b) non-calcination and ethanol, and (c) calcination and no addition of ethanolBack to article page
