Adsorption of Cu (II) Ion through Functionalized Nylon 66 and their Utilization as Photocatalyst for the Photodegradation of Eriochrome Black T Dye in Aqueous Medium 


Vol. 23,  No. 5, pp. 1266-1274, May  2022
10.1007/s12221-022-4214-0


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  Abstract

Removal of toxic pollutants such as heavy metals and dyes from water has received great attention due to a significant decline in the clean water level, worldwide. Herein, we attempted to remove both metals and dyes using a single material. Nylon 66 (nylon) films were prepared and then functionalized with nitric acid. The functionalized nylon 66 (Fnylon) was utilized for the adsorption of copper (II) (Cu(II)) ions from an aqueous solution. The adsorption study revealed the efficient adsorption of Cu (II) ions through F-nylon. Moreover, the adsorption data were fitted to Langmuir, Freundlich, and Temkin isotherms, and the values are best fitted to Langmuir isotherm as compared with Freundlich isotherm. The nylon 66, F-nylon, and Cu/F-nylon were characterized through scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). SEM of F-nylon samples showed highly porous surface and membrane-like appearance that is suitable for the metal adsorption. The EDX analysis confirmed the overall elemental composition of the adsorbed copper on F-nylon surface. FTIR was helpful to confirm the introduction of new functional groups after modification of nylon, while TGA analysis demonstrated significant thermal stability of all samples. The copper adsorbed F-nylon 66 (Cu/F-nylon) was further utilized as a photocatalyst for the photodegradation of Eriochrome Black T (EBT) dye. Cu/F-nylon and recovered Cu/F-nylon films degraded about 93 and 89.3 % EBT dye within 240 min, respectively. The optimum conditions for EBT photodegradation were pH 6, 0.05 g photocatalyst dosage, and an initial dye concentration of 60 ppm.

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  Cite this article

[IEEE Style]

N. Khan, I. Khan, N. Zada, K. Saeed, "Adsorption of Cu (II) Ion through Functionalized Nylon 66 and their Utilization as Photocatalyst for the Photodegradation of Eriochrome Black T Dye in Aqueous Medium," Fibers and Polymers, vol. 23, no. 5, pp. 1266-1274, 2022. DOI: 10.1007/s12221-022-4214-0.

[ACM Style]

Nasib Khan, Idrees Khan, Noor Zada, and Khalid Saeed. 2022. Adsorption of Cu (II) Ion through Functionalized Nylon 66 and their Utilization as Photocatalyst for the Photodegradation of Eriochrome Black T Dye in Aqueous Medium. Fibers and Polymers, 23, 5, (2022), 1266-1274. DOI: 10.1007/s12221-022-4214-0.

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