SEM images of AgCl microstructures prepared by one-pot hydrothermal process at different reaction times. (a) The big AgCl crystal dendrites formed after 3 h of reaction. (b) The big dendrites fragmentized into smaller dendrites after 6 h of reaction. (c) The eight smaller dendrites assembled on each corner of a cube to develop symmetric octagonal dendrites after 7 h of reaction. (d) The sub-dendrites of the octagonal dendrites dissolved to smaller and smoother sub-dendrites after 9 h of reaction. (e) The final products were the symmetric flower-like AgCl microstructure crystals after 11 h of reaction; the insert is the amplified image.