Iodine value in adsorption is a commonly used method to characterize and measure activated Zinc Oxide Kaolin nanocomposite particle (ZnO-K NP) performance . This number (value) compares the adsorptive characteristics of the activated adsorbent prepared using the activated clay (Kaolin). Table shows the various values of iodine number obtained using the different dosage of the activated ZnO-K NP at different time and temperature. It can be seen that the run 18 at 5mg/L at 600 o C calcination temperature and 60 minutes calcination time gave the highest value of iodine number (1932.24 mg of iodine/g) while that with 1 mg/L, 300 o C and 30 minute calcination temperature and time gave the lowest value (484.03mg iodine/g). Generally, the high values gotten at those condition indicates that there are large micropore and mesopore structures in the ZnO-K NP, which favors chemisorption. When delving into the SEM-EDS results depicted in figure and drawing parallels with the findings presented by , the microstructure analysis using Scanning Electron Microscopy Energy Dispersion Spectroscopy (SEM-EDS) reveals intriguing insights. Both the Beneficiated Kaolin and ZnO-K NP exhibit irregular shapes characterized by a mix of small and large particles that are not uniformly dispersed throughout the samples. Upon closer examination, Beneficiated Kaolin showcases distinctive features such as flakes on its surface and the presence of some pores, mirroring observations seen in the ZnO-K NP microstructure. However, a notable difference emerges in the quantity of small particles present. ZnO-K NP displays a higher abundance of these smaller particles compared to Beneficiated Kaolin, indicating a unique structural aspect of the nanocomposite.