Open AccessNanosphere of Pb‐modified bismuth‐based borate photocatalysts
Author(s) -
Yang Jie,
Pan Xiaolong,
Quhe Ruge,
Bi Ke,
Lin Sen,
Liang Ce,
Yao Chongchong,
Du Yinxiao,
Liu Jun,
Fan Dongyu,
Yang Hujiang,
Wang Yonggang,
Lei Ming
Publication year - 2017
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0762
Subject(s) - photocatalysis , materials science , scanning electron microscope , rhodamine b , x ray photoelectron spectroscopy , impurity , transmission electron microscopy , diffuse reflectance infrared fourier transform , hydrothermal circulation , ultraviolet , analytical chemistry (journal) , doping , nuclear chemistry , nanotechnology , chemical engineering , optoelectronics , chemistry , catalysis , organic chemistry , biochemistry , chromatography , engineering , composite material
Bi 2− x Pb x O 2 (BO 2 OH) nanospheres are synthesised by means of one‐step hydrothermal route by embedding Pb 2+ to Bi 2 O 2 2+ layers. The obtained materials are characterised by X‐ray diffraction, ultraviolet (UV)–vis diffuse reflectance, scanning electron microscope, transmission electron microscopy and X‐ray photoelectron spectroscopy. Photocatalytic activity is measured by decomposition of rhodamine B under UV‐light irradiation. Photocatalytic performance is boosted after inducing Pb impurity into pure Bi 2 O 2 (BO 2 OH) lattice, because the impurity energy level could capture the holes and restrain the recombination of electron–hole pairs. Electronic properties of the fabricated nanospheres are investigated via first‐principle calculations. The highest photocatalytic performance is found in the modified Bi 2 O 2 (BO 2 OH) with a doping concentration of Bi/Pb = 1.5/0.5, which outperformed the pure even the commercial P25.