This paper explores the applicability of unmodified and chemically modified activated carbon cloths (ACCs) for the removal of estrone, 17β-estradiol, and 17α-ethinylestradiol from water. In order to examine the influence of surface properties on hormone adsorption, chemical modification of ACCs with HNO₃, HCl, or KOH was employed. Applied treatments increased the specific surface area and changed the content of oxygen functional groups. Increased content of acidic surface oxygen functionalities enhanced adsorption efficiency up to 30 % and had a more dominant influence on adsorption capacity than specific surface area. Adsorption of estrone, 17β-estradiol, and 17α-ethinylestradiol followed pseudo-second-order kinetic model, while the equilibrium adsorption data fitted well with the Freundlich isotherm model. Calculated mean sorption energy values of 1.4475, 1.3387, and 1.0541 kJ/mol, for E1, E2, and EE2 respectively, indicated that removal of selected hormones was dominated by physisorption mechanism. Obtained Langmuir adsorption capacities, 12.34, 12.66, and 11.11 mg/g for estrone, 17β-estradiol, and 17α-ethinylestradiol, respectively, as well as convenience of manipulation, recommend activated carbon cloth modified with HNO₃ as an efficient adsorbent for removing estrogen hormones from the water.

本文探讨了未改性和化学改性的活性炭布（ACC）用于从水中去除雌酮，17β-雌二醇和17α-炔雌醇的适用性。为了检查表面性质对激素吸附的影响，使用HNO ₃对ACC进行化学修饰使用HCl或KOH。施加的处理增加了比表面积并改变了氧官能团的含量。酸性表面氧官能团含量的增加将吸附效率提高了30％，并且比表面积对吸附容量的影响更大。雌酮，17β-雌二醇和17α-炔雌醇的吸附遵循伪二级动力学模型，而平衡吸附数据与Freundlich等温模型吻合良好。计算得出的E1，E2和EE2的平均吸附能分别为1.4475、1.3387和1.0541 kJ / mol，这表明所选激素的去除主要受物理吸附机制的影响。获得的Langmuir雌酮，17β-雌二醇和17α-炔雌醇的吸附容量分别为12.34、12.66和11.11 mg / g，₃作为从水中去除雌激素的有效吸附剂。