University of Kashan Journal of Nanostructures 2251-7871 14 4 2024 10 01 Efficiency of Chitosan-Grafted Poly (Carboxymethyl Cellulose-Co-Acrylamide) Nano Hydrogel for Cadmium (II) Removal: Batch Adsorption Study 1122 1133 114608 10.22052/JNS.2024.04.013 EN Qusay K. Mojar Alshamusi Department of Chemistry, College of Education, University of Al-Qadisiyah, Al-Qadisiyah, Iraq Khitam Abdul Ameer Hameed Ministry of Education, General Directorate of Babylon Education, Iraq Ali M. Taher Department of Chemistry, College of Science, University of Al-Qadisiyah, Diwaniya 1753, Iraq Maryam Batool Department of Chemistry, University of Sahiwal, Sahiwal, Pakistan Layth Sameer Jasim Department of Chemistry, College of Education, University of Al-Qadisiyah, Diwaniyah, Iraq Journal Article 2023 04 09 Presence of heavy metals (HMs) mainly cadmium (Cd (II)) ions in water cause serious environmental and health risks that needs to be addressed by some effective method. Current study involved the use of Chitosan-grafted Poly (Carboxymethyl Cellulose-Co-Acrylamide) Nano Hydrogel for Cd (II) ions removal from water. The prepared nano hydrogel was characterized via Fourier Transform Infrared (FTIR) spectroscopy, Field Emission Scanning Electron Microscopy (FESEM) and X-ray Diffraction (XRD). The results of these techniques revealed the presence of different types of functional groups in nano hydrogel structure that possess highly rough and amorphous texture. Adsorption study was conducted for investigating the effects of contact time, solution pH, nano hydrogel dose, and ionic strength of different salts (NaCl, KCl, CaCl2) on Cd (II) removal. Findings of the study highlights maximum removal of 93.3% with adsorption capacity 37.3 mg/g in 90 minutes while using 200 mg/L Cd (II) solution of pH 10. Kinetic study showed fitness of adsorption process with pseudo second model with regression coefficient value equal to unity signifying a chemical adsorption mechanism. Overall, the prepared CS-g-P(CMC-co-AM) nano hydrogel possess adsorption potential for cadmium ions removal from water.   https://jns.kashanu.ac.ir/article_114608_235521d49b70c283efd8d35b6170b735.pdf