Research Article

A Clean, Simple, and Efficient Synthesis of 2-Substituted Aryl (Indolyl) Kojic Acid Derivatives by Kaolin/Ag Nanocomposite as a Reusable Catalyst: A Green Protocol

Figure 3

SEM images of Kaolin/Ag nanocomposite.
418969.fig.003a
(a)
418969.fig.003b
(b)