Flexible PAN-BiOI-AgI heterojunction nanofiber and the photocatalytic degradation property

Pingping Teng, Zhiang Li, Shuai Gao, Kang Li, Nigel Copner, Zhihai Liu, Xinghua Yang, Enming Zhao, Yu Zhang, Tao Geng, Fengjun Tian

Research output: Contribution to journalArticlepeer-review

3 Downloads (Pure)

Abstract

In this paper, the flexible polyacrylonitrile (PAN) nanofibers are used as carriers to prepare one-dimensional bismuth oxyiodide-silver iodide (BiOI-AgI) photocatalyst. PAN-BiOI-AgI is prepared on the surface of electrospun PAN nanofibers by alternate growth method and subsequent ion exchange method at room temperature. The results of XRD, TEM, XPS, and UV-Vis diffuse reflectance spectroscopy indicate the heterojunctions formation. The flexible PAN-BiOI-AgI heterojunction fibers show higher photocatalytic degradation efficiency for rhodamine B than PAN-BiOI or PAN-AgI. The enhanced photocatalytic performance is attributed to that the heterojunction improves the photo-generated electron-hole separation efficiency. After 60 min of visible light irradiation, the degradation efficiency is greater than 95%. Free radical capture experiments show that•O2- and h+ are the main groups involved in the oxidation reaction.
Original languageEnglish
Pages (from-to)1031-1042
Number of pages12
JournalOptical Materials Express
Volume12
Issue number3
Early online date15 Feb 2022
DOIs
Publication statusPublished - 1 Mar 2022

Fingerprint

Dive into the research topics of 'Flexible PAN-BiOI-AgI heterojunction nanofiber and the photocatalytic degradation property'. Together they form a unique fingerprint.

Cite this