Selective adsorption of nickel ions by electrospun nanofiber membrane from aqueous solution

Avesh Kumar, F. Ahmed, Zeeshan Khatri, Pardeep Kumar, A. Hussain
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Abstract

In recent years, the contamination of surface and underground water resources with Nickel ions has become a major environmental issue, which has attracted much more attention to build up and execute the different methods for removing nickel ions from water. In our research, PAN nanofiber membrane was prepared by electrospinning method, in which tip to collector distance, applied voltage and solution flow rate of electrospinning process was 13cm, 12KV and 0.5ml/hr respectively. The produced electospun nanofiber membrane was used for the adsorption process to remove nickel ions from aqueous solution. The produced nanofibers will be characterized by the measurements such as: - Scanning electron microscope (SEM), X-RAY Diffraction(XRD), Fourier transform infrared (FTIR) spectroscopy. The adsorption of nickel ions from aqueous solution on PAN nanofibers was examined in batch system. The effects of the solution pH, initial metal concentration, contact time and dosage of the adsorbent during adsorption method were examined. The maximum removal of nickel ions from water was 98% at optimum values that were 30 mg mass of neat PAN nanofibers, pH-7 and contact time 90 minutes.In recent years, the contamination of surface and underground water resources with Nickel ions has become a major environmental issue, which has attracted much more attention to build up and execute the different methods for removing nickel ions from water. In our research, PAN nanofiber membrane was prepared by electrospinning method, in which tip to collector distance, applied voltage and solution flow rate of electrospinning process was 13cm, 12KV and 0.5ml/hr respectively. The produced electospun nanofiber membrane was used for the adsorption process to remove nickel ions from aqueous solution. The produced nanofibers will be characterized by the measurements such as: - Scanning electron microscope (SEM), X-RAY Diffraction(XRD), Fourier transform infrared (FTIR) spectroscopy. The adsorption of nickel ions from aqueous solution on PAN nanofibers was examined in batch system. The effects of the solution pH, initial metal concentration, contact time and dosage of the adsorbent during adsorption method we...
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静电纺纳米纤维膜对水溶液中镍离子的选择性吸附
近年来,镍离子对地表水和地下水资源的污染已成为一个重大的环境问题,各种去除水中镍离子的方法的建立和实施越来越受到人们的关注。在我们的研究中,采用静电纺丝法制备PAN纳米纤维膜,其中针尖到集电极的距离为13cm,施加电压为12KV,溶液流速为0.5ml/hr。制备的电纺丝纳米纤维膜用于吸附去除水溶液中的镍离子。利用扫描电镜(SEM)、x射线衍射(XRD)、傅里叶变换红外光谱(FTIR)等测试手段对制备的纳米纤维进行表征。研究了PAN纳米纤维对水溶液中镍离子的吸附性能。考察了吸附过程中溶液pH、初始金属浓度、接触时间和吸附剂用量等因素对吸附性能的影响。当纯聚丙烯腈纳米纤维质量为30 mg, ph值为7,接触时间为90 min时,对水中镍离子的去除率达到98%。近年来,镍离子对地表水和地下水资源的污染已成为一个重大的环境问题,各种去除水中镍离子的方法的建立和实施越来越受到人们的关注。在我们的研究中,采用静电纺丝法制备PAN纳米纤维膜,其中针尖到集电极的距离为13cm,施加电压为12KV,溶液流速为0.5ml/hr。制备的电纺丝纳米纤维膜用于吸附去除水溶液中的镍离子。利用扫描电镜(SEM)、x射线衍射(XRD)、傅里叶变换红外光谱(FTIR)等测试手段对制备的纳米纤维进行表征。研究了PAN纳米纤维对水溶液中镍离子的吸附性能。考察了溶液pH、初始金属浓度、接触时间和吸附剂用量对吸附过程的影响。
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