Development of a Hybrid Chitosan- and Niacinamide-Coupled ZnO Nanoparticle Composite for Sun Protection Application

Figure 5

Thermogravimetric analysis of ZnO, CS/ZnO, and Nia/ZnO. These three samples, 50 mg each, are subjected to heat, specifically 10°C per minute. The thermogravimetric analysis was completed when each sample was subjected to a temperature of 350°C. The numbers on the left of the graph show the percentage of weight loss. The black line shows the weight loss of pure ZnO (to be referred to as ZnO from this point forward), the red line illustrates the Nia/ZnO weight loss, and the blue line displays the CS/ZnO weight loss.