Department of Chemical Engineering, Konya Technical University , Konya , Turkey.
Int J Phytoremediation. 2019;21(11):1130-1144. doi: 10.1080/15226514.2019.1606786. Epub 2019 May 6.
In the present work, Sycamore () tree seed pod fibers (STSPF) and nano-scale zero valent iron particles (nZVI) immobilized in Sycamore tree seed pod fibers (nZVIʘSTSPF) were produced. This biosorbent has been utilized as a viable effective biosorbent in the removing of methylene blue hydrate (MB), malachite green oxalate(MG), methyl violet 2B(MV) dyes from synthetic wastewater. The biosorbents were characterized by scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) spectroscopy. Various parameters such as contact time, solution concentration, pH and amount of biosorbent were investigated in order to evaluate the potential of the nanomaterials immobilized on natural wastes as sorbing biomaterials for the cationic dyes. Study on sorption kinetic and the sorption isotherm was carried out and best fitting models for the rate kinetics and isotherms were suggested. Langmuir isotherm was observed to be compatible with the isotherm models. The STSPF in the raw form showed the best dye sorption capacity of 43.67 mg/g for MG, 25.32 mg/g for MV, and 126.60 mg/g for MB. The magnetic nZVIʘSTSPF showed the best dye sorption capacity 92.59 mg/g for MG, 92.59 mg/g for MV, and 140.80 mg/g for MB. The iron nanoparticles immobilized biosorbent exhibited a higher removal capacity for all dyes compared to the raw biosorbent.
在本工作中，生产了梧桐（）树种子荚纤维（STSPF）和纳米零价铁颗粒（nZVI）固定在梧桐树种子荚纤维（nZVIʘSTSPF）中。这种生物吸附剂已被用作一种可行的有效生物吸附剂，用于从合成废水中去除水合亚甲蓝（MB）、孔雀石绿草酸盐（MG）、甲基紫 2B（MV）染料。通过扫描电子显微镜（SEM）和傅里叶变换红外（FT-IR）光谱对生物吸附剂进行了表征。研究了接触时间、溶液浓度、pH 值和生物吸附剂用量等各种参数，以评估固定在天然废物上的纳米材料作为吸附生物材料对阳离子染料的潜力。进行了吸附动力学和吸附等温线研究，并提出了最佳拟合动力学和等温线模型。观察到 Langmuir 等温线与等温线模型相吻合。原始形式的 STSPF 对 MG 的最佳染料吸附容量为 43.67 mg/g，对 MV 的最佳染料吸附容量为 25.32 mg/g，对 MB 的最佳染料吸附容量为 126.60 mg/g。磁性 nZVIʘSTSPF 对 MG 的最佳染料吸附容量为 92.59 mg/g，对 MV 的最佳染料吸附容量为 92.59 mg/g，对 MB 的最佳染料吸附容量为 140.80 mg/g。与原始生物吸附剂相比，固定铁纳米粒子的生物吸附剂对所有染料的去除能力都更高。
