Mohammadi Ali Akbar, Marufi Nilufar, Hassan Najmaldin Ezaldin, Fallahizadeh Saeid, Tafreshi Amin, Oskoei Vahide, Ghanbari-Ghozikali Mohammad, Rezagholizade-Shirvan Alieh
Department of Environmental Health Engineering, Neyshabur University of Medical Sciences, Neyshabur, Iran; Workplace health research center, Neyshabur University of Medical Sciences, Neyshabur, Iran.
Student Research Committee, Department of Environmental Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Int J Biol Macromol. 2025 Jan;287:138541. doi: 10.1016/j.ijbiomac.2024.138541. Epub 2024 Dec 7.
The prevalent presence of naphthalene contamination in aquatic ecosystems is a significant concern due to its carcinogenic and priority pollutant properties. This study focuses on the synthesis of magnetized chitosan/alginate/pomegranate peel extract nanocomposites (FeO/PPE/Cs-Alg), was characterized by Zeta potential, vibrating sample magnetometer (VSM), Field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analyses. The results predicted that the successfully synthesis of Fe3O4/PPE/Cs-Alg. The study evaluates the efficacy of the nanocomposite in naphthalene removal, considering operational parameters like pH, varied initial naphthalene concentrations, nanocomposite doses and contact time . The maximum adsorption capacities of naphthalene optimal conditions were 88.12 mg/g for 50 ppm initial naphthalene concentration. The Langmuir, Freundlich, Temkin and Sips isotherms were applied to analyze the experimental equilibrium data. The Sips isotherm was identified as the most suitable model, as evidenced by the highest (R = 0.97), Also, the adsorption data conformed well to the pseudo-second-order kinetics model (R = 0.99). The thermodynamic study showed positive values for ΔH° and ΔS° throughout the adsorption process respectively, implying an endothermic behavior. Therefore, we found that it can significantly remove naphthalene in aqueous environments and hence could be useful for cleaning up the environment from Poly Aromatic Hydrocarbon.
由于萘具有致癌性和优先污染物特性，其在水生生态系统中的普遍存在是一个重大问题。本研究聚焦于磁性壳聚糖/海藻酸盐/石榴皮提取物纳米复合材料（FeO/PPE/Cs-Alg）的合成，通过zeta电位、振动样品磁强计（VSM）、场发射扫描电子显微镜（FESEM）、能量色散X射线光谱（EDX）、傅里叶变换红外光谱（FTIR）和X射线衍射（XRD）分析对其进行了表征。结果表明成功合成了Fe3O4/PPE/Cs-Alg。该研究评估了纳米复合材料在去除萘方面的效果，考虑了pH值、不同的初始萘浓度、纳米复合材料剂量和接触时间等操作参数。对于初始萘浓度为50 ppm的情况，萘在最佳条件下的最大吸附容量为88.12 mg/g。应用朗缪尔、弗伦德利希、坦金和西普等温线来分析实验平衡数据。西普等温线被确定为最合适的模型，其相关系数最高（R = 0.97），此外，吸附数据与伪二级动力学模型拟合良好（R = 0.99）。热力学研究表明，在整个吸附过程中，ΔH°和ΔS°分别为正值，这意味着吸附行为是吸热的。因此，我们发现它可以显著去除水环境中的萘，从而可用于清除环境中的多环芳烃。
