In the present study, we introduce the formation of Starch/PEG-poly (acrylic acid) hydrogel (St-PEG-AcAH) and nanocomposite of AgNPs-base St-PEG-AcAH (AgNPs-St-PEG-AcANCH) free radical method, and their characterization using analytical techniques of FT-IR, TEM, SEM, EDX, AFM, XRD, TGA/DTG. The thermodynamic parameters and application of prepared hydrogels was investigated for the removal of Hg²⁺ ions in water and the various solvents such as ethanol-water (30:70), ethanol-water (50:50), 2-propanol–water (40:60), respectively. The maximum adsorption capacity of Hg²⁺ ions for St-PEG-AcAH and AgNPs-St-PEG-AcANCH was achieved 158.21 mg/g and 182.53 mg/g in pH 7 and 6 in aqueous solutions, respectively. On the other hand, the results of adsorption isotherms revealed that adsorption process for both adsorbents occurred as a homogenous and monolayer process with L-shape isotherm. Furthermore, investigating the bioactivity of bioadsorbents, the good antimicrobial efficiency of the prepared samples was confirmed on E. coli bacteria.

在本研究中，我们介绍了淀粉/ PEG-聚（丙烯酸）水凝胶（St-PEG-AcAH）的形成和基于AgNPs的St-PEG-AcAH（AgNPs-St-PEG-AcANCH）纳米复合材料的自由基合成方法，以及使用FT-IR，TEM，SEM，EDX，AFM，XRD，TGA / DTG的分析技术对其进行表征。热力学参数和制备的水凝胶的应用进行了研究用于去除汞²⁺在水中离子和各种溶剂如乙醇-水（30:70），乙醇-水（50:50），2-丙醇-水（ 40:60）。Hg ²⁺的最大吸附量在水溶液中，pH 7和6时，St-PEG-AcAH和AgNPs-St-PEG-AcANCH的离子分别达到158.21 mg / g和182.53 mg / g。另一方面，吸附等温线的结果表明，两种吸附剂的吸附过程均发生在L形等温线的均质和单层过程中。此外，通过研究生物吸附剂的生物活性，证实了所制备样品对大肠杆菌具有良好的抗菌效率。