<p><span style=\"line-height: 200%; font-family: \'Times New Roman\',\'serif\'; font-size: 10pt; mso-bidi-font-family: \'Times New Roman\'; mso-bidi-theme-font: minor-bidi;\" lang=\"EN-US\">The present research focuses on removal efficiency of super paramagnetic nano iron oxide loaded poly (styrene-co-acrylic acid) hydrogel (super paramagnetic PSA hydrogel) for Zn<sup>2+</sup> ions from aqueous solution by batch adsorption technique. The influence of pH, contact time, adsorbent dose, temperature and metal ion concentration on the sensitivity of the removal process was inspected. The synthesized copolymer was magnetized insitu and the size, phase identification, morphology and coating of magnetic nano particles were characterized by TEM, XRD, AFM and FTIR analysis respectively. Out of various kinetic models proposed, the &lsquo;pseudo-second-order&rsquo; seems to fit in the experimental data in the best way. Kinetic parameters, rate constants, and related correlation coefficients and equilibrium sorption capacities for each kinetic model were computed and discussed. Different thermodynamic parameters &Delta;G<sup>0</sup>, &Delta;H<sup>0</sup> and &Delta;S<sup>0</sup> have also been evaluated which showed the sorption was spontaneous, attainable and exothermic in nature. The sorption data was analyzed and fitted to linearized adsorption isotherm of the Langmuir, Freundlich and Temkin equations respectively. The uptake of Zn<sup>2+</sup> followed Freundlich sorption isotherm better. The maximum percentage removal of Zn<sup>2+</sup> ions (95%) was obtained at pH 7 in 120 min at room temperature (25<sup>0</sup>C) and the adsorbent could be regenerated efficiently and used repeatedly for further experiments.</span></p>