Abstract Electron beam irradiated sheep wool with absorbed radiation doses ranging from 0 to 165 kGy showed good adsorption properties toward copper cations. The Cu(ii) being Lewis acid generated several types of complex salts based on carboxylates or cysteinates with ligands available in keratin. Under these conditions, cross-links were formed between the keratin chains. Experimental data obtained from Cu(ii) adsorption using the concentration of 800–5,000 mg/L were tested for fitting to 10 isotherm models. Various compositions and architectures of the Cu(ii)-complexes were specified to be responsible for different isotherm model fittings. The copper cation showed adherence to Langmuir, Flory–Huggins, and partially Redlich–Peterson models. The latter clearly distinguished the native wool from the modified ones. Another aim is to investigate the conditions for the adsorption of anti-microbial nanoparticles in addition to the redox-active metals on radiation-modified wool taking into account that the diffusion of nanoparticles into the modified wool is governed by electrostatic interactions.

中文翻译：

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用于吸附氧化还原金属和潜在纳米颗粒的辐射改性羊毛

摘要 吸收辐射剂量为 0 至 165 kGy 的电子束辐照羊毛对铜阳离子表现出良好的吸附性能。Cu(ii) 是路易斯酸，产生了几种类型的基于羧酸盐或半胱氨酸盐的复合盐，配体在角蛋白中可用。在这些条件下，角蛋白链之间形成了交联。测试了使用 800–5,000 mg/L 浓度从 Cu(ii) 吸附获得的实验数据，以拟合 10 个等温线模型。Cu(ii)-配合物的各种组成和结构被指定负责不同的等温线模型拟合。铜阳离子显示出对 Langmuir、Flory-Huggins 和部分 Redlich-Peterson 模型的粘附。后者清楚地区分了天然羊毛和改性羊毛。