The objective of this work is to prepare biodegradable hydrogel of wheat flour/acrylamide (F/AAm) using gamma radiation for the removal of Pb²⁺ and Hg²⁺ ions from waste solutions. Characterization of prepared (F/PAAm) hydrogel was carried out by FTIR, SEM, XRD and EDX. Factors affecting on the adsorption process such as pH of the medium, initial concentration, contact time and temperature were studied. The obtained hydrogel has highly swelling properties reached to over 9000 (%). The metal uptake of (F/PAAm) hydrogel for Pb²⁺ and Hg²⁺ were found to be 24.3 and 15.6 (mg/g), respectively. Kinetic and isotherm models were studied.

中文翻译：

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辐射合成高吸收性水凝胶（小麦粉/丙烯酰胺），用于去除废物溶液中的汞和铅离子

这项工作的目的是使用伽马射线制备可降解小麦粉/丙烯酰胺（F / AAm）的水凝胶，以从废液中去除Pb ²⁺和Hg ²⁺离子。通过FTIR，SEM，XRD和EDX对制得的（F / PAAm）水凝胶进行表征。研究了影响吸附过程的因素，如介质的pH值，初始浓度，接触时间和温度。所获得的水凝胶具有高达9000（％）以上的高度溶胀性。发现（F / PAAm）水凝胶对Pb ²⁺和Hg ²⁺的金属吸收分别为24.3和15.6（mg / g）。研究了动力学和等温线模型。