Ibupoto Abdul Sameeu, Qureshi Umair Ahmed, Arain Maryam, Ahmed Farooq, Khatri Zeeshan, Brohi Rafi Zaman, Kim Ick Soo, Ibupoto Zafar
Institute of Environmental Engineering & Management, Mehran University of Engineering and Technology, Jamshoro, Pakistan.
Centre of Excellence in Nanotechnology and Materials, Mehran University of Engineering and Technology, Jamshoro, Pakistan.
Environ Technol. 2020 Sep;41(21):2731-2741. doi: 10.1080/09593330.2019.1580774. Epub 2019 Feb 18.
Hybrid nanofibers based on ZnO loaded activated carbon nanofibers (ZnO-ACNFs) are proposed here for the elimination of hazardous lead from aqueous solutions. The prepared ZnO nanoscale material was loaded into the polyacrylonitrile nanofibers (PAN NFs) which were later carbonized by using a novel method named as a plate-sandwich method. The Synthesized nanofibrous composite was characterized by SEM, TEM, EDX, FTIR and XRD techniques to analyze its chemical and morphological properties. Moreover, the nanocomposite was efficaciously applied for the lead (Pb) ions removal from wastewater and simulated water through continuous filtration and batch filtration. The ZnO-ACNFs membrane showed outstanding results in adsorptive removal, giving adsorption capacity of 92.59 mg/g within the contact time of 45 min. Compared to their counterparts (ZnO and CNFs), the hybrid ZnO-ACNFs showed excellent performance in removing toxic lead.
本文提出了基于负载氧化锌的活性炭纳米纤维（ZnO-ACNFs）的混合纳米纤维，用于去除水溶液中的有害铅。将制备的氧化锌纳米材料负载到聚丙烯腈纳米纤维（PAN NFs）中，随后采用一种名为板三明治法的新方法进行碳化。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、能谱仪（EDX）、傅里叶变换红外光谱仪（FTIR）和X射线衍射仪（XRD）技术对合成的纳米纤维复合材料进行表征，以分析其化学和形态学性质。此外，通过连续过滤和间歇过滤，将该纳米复合材料有效地应用于去除废水中和模拟水中的铅（Pb）离子。ZnO-ACNFs膜在吸附去除方面表现出优异的效果，在45分钟的接触时间内吸附容量为92.59 mg/g。与同类材料（ZnO和CNFs）相比，混合ZnO-ACNFs在去除有毒铅方面表现出优异的性能。
