Fig. 1From: Highly Efficient Catalysis of Azo Dyes Using Recyclable Silver Nanoparticles Immobilized on Tannic Acid-Grafted Eggshell MembraneThe SEM images of natural ESM (a, b), Tan-ESM (c, d), and AgNPs@Tan-ESM composites (e, f) at different magnificationsBack to article page