Preparation and Adsorption Property of Imido-acetic Acid Type Chelating Nano-fibers by Electro-spinning Technique

5th Annual International Conference on Material Science and Engineering

Yang, Jiali^1 ; Lu, Lansi^1 ; Zhang, Zhu^1 ; Liao, Minhui^1 ; He, Huirong^1 ; Li, Lingxing^1 ; Chen, Jida^1 ; Chen, Shijin^2

Chongqing University, Chemistry and Chemical Engineering, Chongqing, China^1

Bomin Electronics Co., Ltd, Guangdong, China^2

关键词: Adsorption properties;    Adsorption rates;    Fourier transform infrared spectrometry;    Mixture solution;    Nano-fibrous;    Poly (vinyl alcohol) (PVA);    Pseudo-second-order kinetic models;    Removal of metals;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/275/1/012001/pdf
DOI  :  10.1088/1757-899X/275/1/012001

来源: IOP

【 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.