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首页> 外文会议>Annual International Conference on Material Science and Engineering >Preparation and Adsorption Property of Imido-acetic Acid Type Chelating Nano-fibers by Electro-spinning Technique
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Preparation and Adsorption Property of Imido-acetic Acid Type Chelating Nano-fibers by Electro-spinning Technique

机译：电纺织技术制备及吸附性螯合纳米纤维的制备及吸附性能

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摘要

A novel nano-fibrous adsorbent from imino-acetic acid (IDA) and polyvinyl alcohol (PVA) mixture solution was prepared by electro-spinning technique. The nano-fibrous adsorbents with imino-acetic acid functional groups were characterized and demonstrated by fourier transform infrared spectrometry (FT-IR) and the scanning electron microscopy (SEM). The effect of the adsorbents to remove heavy metals such as lead (Pb) and copper (Cu) ions from the aqueous solution was studied. The maximum adsorption percentage (SP) of the metal ions can reach 93.08% for Cu (II) and 96.69% for Pb(II), respectively. Furthermore, it shows that the adsorption procedure of the adsorbents is spontaneous and endothermic, and adsorption rate fits well with pseudo-second-order kinetic model. Most importantly, the reusability of the nanofibers for removal of metal ions was also demonstrated to be used at least five times.
机译：通过电动纺丝技术制备来自亚氨基 - 乙酸（IDA）和聚乙烯醇（PVA）混合物溶液的新型纳米纤维吸附剂。通过傅里叶变换红外光谱法（FT-IR）和扫描电子显微镜（SEM），表征和证明了具有亚氨基 - 乙酸官能团的纳米纤维吸附剂。研究吸附剂除去重金属如铅（Pb）和铜（Cu）离子的重金属，得到了来自水溶液的研究。金属离子的最大吸附百分比（SP）可分别达到93.08％的Cu（II）和96.69％的Pb（II）。此外，它表明吸附剂的吸附过程是自发和吸热的，并且吸附速率与伪二阶动力学模型很好。最重要的是，还证明了用于去除金属离子的纳米纤维的可重用性至少使用五次。

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