Laboratory of Energy and Materials (LABEM), High School of Sciences and Technology of Hammam Sousse, Sousse University-Tunisia, BP 4011, Hammam Sousse, Tunisia.
Environ Sci Pollut Res Int. 2019 Apr;26(12):11524-11534. doi: 10.1007/s11356-018-1507-3. Epub 2018 Feb 18.
The present investigation aims to prepare a hybrid material from Luffa cylindrica and metal oxides (ZnO, AlO) by precipitation for different percentages of zinc and aluminum (1, 2, and 4%) with a determined amount of biomass (a diameter of 250 μm). Physicochemical characterization of "Luffa cylindrica" and "Luffa cylindrica-metal oxides" was carried out by Boehm titration, pH determination, scanning electron microscopy (SEM), and FTIR spectroscopic analysis. The process was optimized according to the adsorbed amount of methylene blue: MB (cationic dye) and methyl orange: MO (anionic dye) onto Luffa cylindrica and hybrid materials prepared. The results demonstrated the efficiency of the designed hybrid materials in removing MB and MO, accelerating the biosorption process and improving the performance of Luffa cylindrica fibers. The highest quantities adsorbed of dyes were obtained by the hybrid material prepared using 4% ZnO. Finally, the Brouers-Sotolongo mathematical modeling of kinetics was used in order to describe the pollutants retention process.
本研究旨在通过沉淀法从丝瓜络和金属氧化物（ZnO、AlO）中制备一种混合材料，其中锌和铝的百分比为 1%、2%和 4%，生物质的含量为一定量（直径为 250μm）。通过Boehm 滴定、pH 值测定、扫描电子显微镜（SEM）和傅里叶变换红外光谱分析对“丝瓜络”和“丝瓜络-金属氧化物”进行了物理化学特性分析。根据对亚甲基蓝（MB，阳离子染料）和甲基橙（MO，阴离子染料）的吸附量，对丝瓜络和制备的混合材料进行了优化。结果表明，设计的混合材料在去除 MB 和 MO 方面具有高效性，加速了生物吸附过程，提高了丝瓜络纤维的性能。用 4% ZnO 制备的混合材料吸附染料的量最高。最后，使用 Brouers-Sotolongo 动力学数学模型来描述污染物的保留过程。
