Chemistry Department, Shahid Bahonar University of Kerman, Kerman 76169, Iran; Central Lab, Shahid Bahonar University, Kerman 76169, Iran.
Chemistry Department, Shahid Bahonar University of Kerman, Kerman 76169, Iran.
Mater Sci Eng C Mater Biol Appl. 2019 Aug;101:42-52. doi: 10.1016/j.msec.2019.03.081. Epub 2019 Mar 23.
A novel magnetic bio-adsorbent has been prepared by the loading of FeO NPs and immobilization of 1,4-butane sultone on the surface of activated carbon. The activated carbon was synthesized from pistachio shell as a carbon material of biogenic, bio-resources and its use is cost effective. Structure, morphology and magnetic property of the prepared adsorbent were studied by transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), Fourier transform infrared spectroscopy (FT-IR), and thermal gravimetric analysis (TGA). The capacity of the adsorbent for removing heavy metals ions Pb(II), As(III) and Cd(II) was studied using Langmuir adsorption isotherm under ultrasound-assisted condition. The maximum adsorption capacities of Pb(II), As(III) and Cd(II) were found to be 147.05, 151.51 and 119.04 mg g, respectively. In addition to high adsorption capacity, this adsorbent shows advantages such as green synthesis, low cast, recyclability, and easy separation. So this nanocomposite can be a suitable absorbent for removal of heavy metal ions from aqueous solutions. Meanwhile, the use of ultrasound radiation is an effective and rapid uptake technology for separating of heavy metal ions from aqueous solutions.
一种新型磁性生物吸附剂是通过在活性炭表面负载 FeO NPs 和固定 1,4-丁烷砜制备的。活性炭是由开心果壳合成的，作为生物资源的生物碳材料，其使用具有成本效益。通过透射电子显微镜 (TEM)、振动样品磁强计 (VSM)、傅里叶变换红外光谱 (FT-IR) 和热重分析 (TGA) 研究了制备的吸附剂的结构、形态和磁性。在超声辅助条件下，使用 Langmuir 吸附等温线研究了吸附剂对重金属离子 Pb(II)、As(III) 和 Cd(II)的去除能力。发现 Pb(II)、As(III) 和 Cd(II)的最大吸附容量分别为 147.05、151.51 和 119.04mg/g。除了高吸附容量外，该吸附剂还具有绿色合成、低成本、可回收性和易于分离等优点。因此，这种纳米复合材料可以成为从水溶液中去除重金属离子的合适吸附剂。同时，超声辐射的使用是一种从水溶液中分离重金属离子的有效和快速吸收技术。
