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
N1 - Funding Information:
Funding. Natural Science Foundation of Heilongjiang Province (LH2021F019); National Key Research and Development Program of China (2018YFC1503703); Fundamental Research Funds for the Central Universities (3072021CF2509, 3072021CF2517); National Natural Science Foundation of China (11574061, 61975039, 62065001, 62175046).
Publisher Copyright:
© 2022 Optica Publishing Group.
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 - http://www.scopus.com/inward/record.url?scp=85125660659&partnerID=8YFLogxK
U2 - 10.1364/OME.450592
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 -