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

Pingping Teng; Zhiang Li; Shuai Gao; Kang Li; Nigel Copner; Liu Zhihai; Xinghua Yang

doi:10.1364/OME.450592

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

Pingping Teng, Zhiang Li, Shuai Gao^*, Kang Li, Nigel Copner, Liu Zhihai^*, Xinghua Yang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

In this paper, flexible polyacrylonitrile (PAN) nanofibers are used as carriers to prepare a one-dimensional bismuth oxyiodide-silver iodide (BiOI-AgI) photocatalyst. PANBiOI- AgI is prepared on the surface of electrospun PAN nanofibers by the 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 the fact 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 language	English
Pages (from-to)	1031-1042
Number of pages	12
Journal	Optical Materials Express
Volume	12
Issue number	3
Early online date	15 Feb 2022
DOIs	https://doi.org/10.1364/OME.450592
Publication status	Published - 01 Mar 2022
Externally published	Yes

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title = "Flexible PAN-BiOI-AgI heterojunction nanofiber and the photocatalytic degradation property",

abstract = "In this paper, flexible polyacrylonitrile (PAN) nanofibers are used as carriers to prepare a one-dimensional bismuth oxyiodide-silver iodide (BiOI-AgI) photocatalyst. PANBiOI- AgI is prepared on the surface of electrospun PAN nanofibers by the 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 the fact 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.",

author = "Pingping Teng and Zhiang Li and Shuai Gao and Kang Li and Nigel Copner and Liu Zhihai and Xinghua Yang",

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TY - JOUR

T1 - Flexible PAN-BiOI-AgI heterojunction nanofiber and the photocatalytic degradation property

AU - Teng, Pingping

AU - Li, Zhiang

AU - Gao, Shuai

AU - Li, Kang

AU - Copner, Nigel

AU - Zhihai, Liu

AU - Yang, Xinghua

PY - 2022/3/1

Y1 - 2022/3/1

N2 - In this paper, flexible polyacrylonitrile (PAN) nanofibers are used as carriers to prepare a one-dimensional bismuth oxyiodide-silver iodide (BiOI-AgI) photocatalyst. PANBiOI- AgI is prepared on the surface of electrospun PAN nanofibers by the 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 the fact 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.

AB - In this paper, flexible polyacrylonitrile (PAN) nanofibers are used as carriers to prepare a one-dimensional bismuth oxyiodide-silver iodide (BiOI-AgI) photocatalyst. PANBiOI- AgI is prepared on the surface of electrospun PAN nanofibers by the 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 the fact 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.

UR - https://www.scopus.com/pages/publications/85125660659

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DO - 10.1364/OME.450592

M3 - Article

AN - SCOPUS:85125660659

VL - 12

SP - 1031

EP - 1042

JO - Optical Materials Express

JF - Optical Materials Express

IS - 3

ER -

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

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