Department of Environmental Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq.
Department of Environment and Pollution Techniques Engineering, Technical Engineering College/Kirkuk, Northern Technical University, Kirkuk, 36001, Iraq.
Environ Monit Assess. 2023 Aug 24;195(9):1078. doi: 10.1007/s10661-023-11689-6.
The 17 α-ethinylestradiol (EE2) adsorption from aqueous solution was examined using a novel adsorbent made from rice husk powder coated with CuO nanoparticles (CRH). Advanced analyses of FTIR, XRD, SEM, and EDSwere used to identify the classification parameters of a CRH-like surface morphology, configuration, and functional groups. The rice husk was coated with CuO nanoparticles, allowing it to create large surface area materials with significantly improved textural qualities with regard to functional use and adsorption performance, according to a detailed characterization of the synthesized materials. The adsorption process was applied successfully with elimination effectiveness of 100% which can be kept up to 61.3%. The parameters of adsorption were affecting the adsorption process significantly. Thermodynamic data stated that the process of adsorption was endothermic, spontaneous, chemisorption and the molecules of EE2 show affinity with the CRH. It was discovered that the adsorption process controlled by a pseudo-second-order kinetic model demonstrates that the chemisorption process was controlling EE2 removal. The Sips model is regarded as optimal for representing this practice, exhibiting a significantly high determination coefficient of 0.948. This coefficient implies that the adsorption mechanism indicates the occurrence of both heterogeneous and homogeneous adsorption. According to the findings, biomass can serve as a cheap, operative sorbent to remove estrogen from liquified solutions.
采用一种新型的以氧化铜纳米颗粒（CuO NPs）涂覆稻壳粉（RH）制成的吸附剂，研究了 17α-乙炔基雌二醇（EE2）在水溶液中的吸附。利用 FTIR、XRD、SEM 和 EDS 的高级分析，对 CRH 样表面形貌、结构和官能团的分类参数进行了鉴定。稻壳被氧化铜纳米颗粒包覆，从而创造了具有显著改善的功能用途和吸附性能的大表面积材料，这是对合成材料的详细表征。吸附过程的去除效率高达 100%，可保持 61.3%。吸附参数对吸附过程有显著影响。热力学数据表明，吸附过程是吸热的、自发的、化学吸附，EE2 分子与 CRH 具有亲和力。研究发现，吸附过程受伪二级动力学模型控制，表明化学吸附过程是控制 EE2 去除的主要过程。Sips 模型被认为是该工艺的最佳模型，其决定系数为 0.948，这表明吸附机制表明存在异质和均相吸附。研究结果表明，生物量可以作为一种廉价、有效的吸附剂，用于从液态溶液中去除雌激素。
