Research Journal of Pharmacy and Technology

Industrial pollutants, especially cadmium, pose severe risks to freshwater systems and human health, necessitating effective removal strategies. Chitosan nanoparticles, derived from crustacean shells, have emerged as a promising method for detoxifying contaminated water. This study aims to demonstrate the effectiveness of nanochitosan derived from black tiger shrimp shells in reducing Cd ions from water. Treatments were five levels of dose (1, 1.5, 2, 2.5, and 3g/L), four levels of pH (7, 7.5, 8, and 8.5), four levels of temperature (25°C, 40°C, 55°C, and 70°C) and five replicants for each sample. The total number of samples was 65 and each sample container filled with 50mL of 50mg/L cd solution. The research began by synthesizing nanochitosan using the ionic gelation method. The size and morphology of nanochitosan were determined using scanning electron microscopy. The atomic absorption spectrophotometer was used to measure the Cd ion adsorption. SEM examination showed that nanochitosan was successfully formed with a size of 294.76±4.52nm and morphology in the form of spheres, irregulars, and clumps. The result showed that nanochitosan from black tiger shrimp shells could adsorb cadmium ions up to 92.87% ±0.01 with an optimal dose of 3g/L. pH 7 is the optimal pH with an adsorption effectiveness value of 93.43% ±0.02. The temperature of 25°C is the optimal temperature with an adsorption effectiveness value of 92.53% ±0.05. Therefore, this study demonstrated that nanochitosan from black tiger shrimp shells is suitable for use as an adsorbent for Cd heavy metal ions.