Alqarni Laila S, Algethami Jari S, El Kaim Billah Rachid, Bahsis Lahoucine, Alorabi Ali Q, Alosaimi Eid H, Algethami Faisal K, Lima Eder C, Wasilewska Małgorzata, López-Maldonado Eduardo Alberto
Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O.Box 90950, Riyadh 11623, Saudi Arabia.
Department of Chemistry, College of Science and Arts, Najran University, P.O. Box, 1988, Najran 11001, Saudi Arabia; Advanced Materials and Nano-Research Centre (AMNRC), Najran University, Najran 11001, Saudi Arabia.
Int J Biol Macromol. 2024 Dec;282(Pt 3):136839. doi: 10.1016/j.ijbiomac.2024.136839. Epub 2024 Oct 24.
This work represents an innovative approach to the synthesis and characterization of a chitosan-based biocomposite for fluoride adsorption. The work involved the development of a biocomposite based on modified chicken bone waste-derived hydroxyapatite and TiO. The composite was characterized using scanning electron microscopy with Energy Dispersive X-ray analysis (SEM-EDX), X-ray diffraction (XRD), Fourier-transform infrared analysis (FTIR), thermal-gravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The optimum parameters for fluoride removal were determined, and the kinetic data was better fitted to the pseudo-first-order model. The Liu equations provided a better description of the experimental adsorption isotherm data. The adsorption mechanism and the interaction of the composite with fluoride were better understood using Density Functional Theory (DFT) calculations and Non-Covalent Interactions (NCI) analyses, paving the way for more effective and efficient defluoridation methods.
这项工作代表了一种用于合成和表征基于壳聚糖的氟吸附生物复合材料的创新方法。该工作涉及开发一种基于改性鸡骨废料衍生的羟基磷灰石和TiO的生物复合材料。使用扫描电子显微镜结合能量色散X射线分析（SEM-EDX）、X射线衍射（XRD）、傅里叶变换红外分析（FTIR）、热重分析（TGA）和X射线光电子能谱（XPS）对该复合材料进行了表征。确定了氟去除的最佳参数，动力学数据更好地拟合了准一级模型。Liu方程能更好地描述实验吸附等温线数据。通过密度泛函理论（DFT）计算和非共价相互作用（NCI）分析，能更好地理解复合材料与氟的吸附机理及相互作用，为更有效和高效的除氟方法铺平了道路。
