Hot Laboratories Centre, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt.
Environ Geochem Health. 2021 Aug;43(8):3169-3188. doi: 10.1007/s10653-021-00813-5. Epub 2021 Feb 2.
Elimination of hazardous metals is of extreme worry for their toxicity at trace levels and accumulation in the biosystem. Polyacrylonitrile ball clay nanocomposite was prepared by gamma irradiation at 20 kGy. Different analytical tools were applied to prove morphology, functional groups, and chemical structure for prepared composite; SEM, TEM, IR, XRD, and XRF. From TEM and XRD data expose the studied composite has nanoscale and crystalline. The adsorption of Cs, Co and Fe onto studied material took place after 24 h. Second order was preceded by the kinetic system. The capacity and effect of pH on k reflect selectivity sequence; Co > Fe > > Cs. Both Freundlich and Langmuir are applicable for investigated material. Finally, PAN/BC nanocomposite is suitable for the column technique.
消除有害金属是极其令人担忧的，因为它们在痕量水平和在生物系统中积累时具有毒性。通过在 20 kGy 的伽马辐照制备了聚丙烯腈球粘土纳米复合材料。应用不同的分析工具来证明制备的复合材料的形态、官能团和化学结构；SEM、TEM、IR、XRD 和 XRF。从 TEM 和 XRD 数据可以看出，研究的复合材料具有纳米级和结晶性。Cs、Co 和 Fe 到研究材料上的吸附发生在 24 小时后。动力学系统遵循二级反应。容量和 pH 值对 k 的影响反映了选择性顺序；Co > Fe > Cs。对于研究材料，Freundlich 和 Langmuir 都适用。最后，PAN/BC 纳米复合材料适用于柱技术。
