A Visually Observable Copper Ion Adsorption Membrane by Electrospinning Combined with Copper Ion Probe 


Vol. 22,  No. 7, pp. 1844-1852, Jul.  2021
10.1007/s12221-021-0737-z


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  Abstract

Heavy metal copper ion pollution has enormously threatened ecosystem and public health. So, materials for detecting and adsorbing copper ions (Cu2+) still remains challenging. Electrospinning nanomaterials have good application prospects in the field of water treatment because of its high specific surface area, high porosity and three-dimensional structure. Here, a visualized chitosan/polyacrylonitrile (CS/PAN) nanofiber membrane (NFM) was prepared via the amination modification of the electrospinning membrane and the doping of Cu2+ fluorescent probe to adsorb Cu2+. The effect of membrane absorbs Cu2+ in water was studied from the aspects of initial Cu2+ concentration, PH and adsorption time. It was found that when the pH value of the Cu2+ environment is 5-6, the weight gain rate of aminated nanofiber membrane is 46 %, and the adsorption time is 90 minutes, the adsorption capacity of the NFM can reach 164.3 mg/g. Then, rhodamine hydrazide derivatives were used as fluorescent Cu2+ probes, which were added to the spinning solution to prepare new NFM to achieve selective recognition of Cu2+. The membrane can be used multiple times and can achieve gradient color development of different concentrations of Cu2+, and the detection limit can reach 10-8 M.

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  Cite this article

[IEEE Style]

A. V. O. C. I. A. M. b. E. C. w. C. I. Probe, "A Visually Observable Copper Ion Adsorption Membrane by Electrospinning Combined with Copper Ion Probe," Fibers and Polymers, vol. 22, no. 7, pp. 1844-1852, 2021. DOI: 10.1007/s12221-021-0737-z.

[ACM Style]

A Visually Observable Copper Ion Adsorption Membrane by Electrospinning Combined with Copper Ion Probe. 2021. A Visually Observable Copper Ion Adsorption Membrane by Electrospinning Combined with Copper Ion Probe. Fibers and Polymers, 22, 7, (2021), 1844-1852. DOI: 10.1007/s12221-021-0737-z.

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pISSN : 1229 - 9197
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