Abstract: Abstract Cross-linked imprinted chitosan polymer (ICP) was successfully prepared from chitosan (CS), using citric acid-cadmium complex (CA-Cd) as template, and glutaraldehyde as the cross-linker. Among different factors that influence the sorption process were studied in detail: solution pH, oscillating time, and temperature. The results showed that the most important factor affecting the effectiveness of sorption were pH and oscillating time. From the Langmuir adsorption model, the adsorption capacity of CS for CA-Cd complex was equal to 8.47 mg/g. The results indicated that the second-order kinetics model was more suitable to describe the sorption kinetics on CS than the first-order kinetics model. Furthermore, the CA-Cd-ICP could be regenerated using 0.1 M HCl solution and could be reused for seven times with 12.30% regeneration loss
Template and target information: citric acid-cadmium complex, CA-Cd
Author keywords: chitosan, molecular imprinting, Citric acid-cadmium complex, polymer