TY - JOUR ID - 30951 TI - Application of Sulfur-Modified Magnetic Nanoparticles for Cadmium Removal from Aqueous Solutions JO - Journal of Water and Environmental Nanotechnology JA - JWENT LA - en SN - 2476-7204 AU - Jafarinejad, Shahryar AU - Faraji, Mohammad AU - Norouz, Zohreh AU - Mokhtari-Aliabad, Javad AD - Chemical Engineering Division, College of Environment, UoE, Karaj, Iran AD - Faculty of Food Industry and Agriculture, Department of Food Science and Technology, Standard Research Institute (SRI), Karaj, Iran AD - Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran Y1 - 2018 PY - 2018 VL - 3 IS - 1 SP - 58 EP - 69 KW - Adsorption KW - Cadmium KW - Magnetic Nanoparticles (MNPs) KW - Removal DO - 10.22090/jwent.2018.01.006 N2 - Even at low levels, heavy metals are toxic and can damage living things. They do not break down or decompose and tend to build up in plants, animals, and people causing health concerns. Magnetic nanoparticles (MNPs) can be considered as potential adsorbents for the removal of cadmium (Cd2+) from aqueous solutions because of their high surface area and the combined effect of adsorption and separation under external magnetic fields. In this study, a novel sulfur-modified magnetic nanoparticle was applied as an adsorbent for the removal of Cd2+ ions from aqueous solutions. The adsorbent was characterized by scanning electron microscopy (SEM), Fourier transform-infrared (FT-IR) spectroscopy, and thermogravimetric analysis (TGA). The effects of pH, contact time, and initial concentration of Cd2+ on the removal efficiency of it were investigated in batch adsorption experiments. The equilibrium data fitted the Langmuir isotherm model better than the Freundlich isotherm model, and they were well explained in terms of pseudo-second-order kinetics. The maximum monolayer capacity qm and KL the Langmuir constant were calculated from the Langmuir as 5.1867 mg/g and 0.1562 L/mg, respectively. UR - https://www.jwent.net/article_30951.html L1 - https://www.jwent.net/article_30951_49d9c43ab2477a2c8b31f734c26f26d3.pdf ER -