Figure 5From: Fabrication and Properties of Porphyrin Nano- and Micro-particles with Novel MorphologyTEM images of sample 2 solution treated with KNO3(a), 0.1 mol L−1NH3 · H2O (b), 0.1 mol L−1NaOH (c), UV-light irradiation for 2 h (d), heat-treatment at 50 °C for 2 h (e), and ultrasonic for 2 h (f)Back to article page