Optimization of Green Synthesis of Silver Nanoparticles from Leaf Extracts of Pimenta dioica (Allspice)

Figure 4

AFM micrographs of silver nanoparticles synthesized from the leaf extracts of Pimenta dioica: (a) fresh leaves in 1 : 0.5 ratio with silver nitrate, (a) fresh leaves in 1 : 1 ratio with silver nitrate, (a) fresh leaves in 1 : 2 ratio with silver nitrate, and (a) fresh leaves in 1 : 3 ratio with silver nitrate; (b) sun-dried leaves in 1 : 0.5 ratio with silver nitrate, (b) sun-dried leaves in 1 : 1 ratio with silver nitrate, (b) sun-dried leaves in 1 : 2 ratio with silver nitrate, and (b) sun-dried leaves in 1 : 3 ratio with silver nitrate (c) hot-air oven dried leaves in 1 : 0.5 ratio with silver nitrate (c) hot-air oven dried leaves in 1 : 1 ratio with silver nitrate; (c) hot-air oven dried leaves in 1 : 2 ratio with silver nitrate and (c) hot-air oven dried leaves in 1 : 3 ratio with silver nitrate.

(a) FL 1 : 0.5

(b) FL 1 : 1

(c) FL 1 : 2

(d) FL 1 : 3

(e) OD 1 : 0.5

(f) OD 1 : 1

(g) OD 1 : 2

(h) OD 1 : 3

(i) SD 1 : 0.5

(j) SD 1 : 1

(k) SD 1 : 2

(l) SD 1 : 3