Preparation of Fe (III) – Amidoximated PAN Nanofibers Complexes for Degradation of Azo Dye under Visible Light Irradiation

Abstract:

Polyacrylonitrile (PAN) nanofibers were fabricated via electrospinning technique, and the modified Fe-polyacrylonitrile nanofibers photocatalysts(Fe-AO-n-PAN) were prepared by a reaction between PAN nanofibers (AO-n-PAN) containing amidoxime group and ferric chloride. Then Fe-AO-n-PAN were used as heterogeneous catalysts in the oxidative degradation reaction of C.I. Reactive Red 195(RR195) in water. This paper investigated the influences on the degree of the conversion from nitrile group to amidoxime group (CP%); analyzed the impacts on the Fe (III) ions content (Q_Fe-PAN) in Fe-AO-n-PAN; and studied the effects of Q_Fe-PAN on the decoloration rate of the dye. The results indicated that the CP% value were greatly enhanced not only with concentration of NH₂OH•HCl increasing, but also gradually with the prolongation of reaction time. In addition, the Q_Fe-PAN of Fe-AO-n-PAN increases with the rise of C_Fe and the CP% value. Finally, Fe-AO-n-PAN have remarkable catalytic activity on the degradation of RR 195, and higher Q_Fe-PAN could promote the catalytic performance of Fe-AO-n-PAN.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 245-249
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.245
• Online since: January 2013
• Authors: Xue Ting Zhao, Yong Chun Dong, Bo Wen Cheng, Wei Min Kang
• Keywords: AZO Dye, Degradation, Fe (III) Ion, PAN Nanofiber, Photocatalyst

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