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Enhanced photocatalytic performance by Y‐doped BiFeO 3 particles derived from MOFs precursor based on band gap reduction and oxygen vacancies
Author(s) -
Li Zhendong,
Cheng Li,
Zhang Ke,
Wang Zhenhua
Publication year - 2021
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.6113
Subject(s) - photocatalysis , x ray photoelectron spectroscopy , doping , band gap , chemistry , nanoparticle , oxygen , analytical chemistry (journal) , materials science , nanotechnology , chemical engineering , catalysis , optoelectronics , biochemistry , organic chemistry , chromatography , engineering
In order to improve the photocatalytic performance of BiFeO 3 , we prepared BiFeO 3 nanoparticles doped with different molar concentrations of Y by thermal decomposition of MOFs precursor. The samples were characterized by XRD, TG, FESEM, XPS, UV‐vis, and PL. The results of XRD and XPS reveal that Y 3+ have been successfully incorporated into BiFeO 3 lattice. FESEM and UV‐vis results reveal that Y doping leads to a decrease in BiFeO 3 particle size and band gap. PL shows that the recombination rate of photogenerated electron hole pairs of Bi 0.95 Y 0.05 FeO 3 is the lowest. The influences of Y doping content on photocatalytic activity of BiFeO 3 have been investigated. The results show that the best photocatalytic activity is Bi 0.95 Y 0.05 FeO 3 . Compared with pure BiFeO 3 , Bi 0.95 Y 0.05 FeO 3 increased the degradation rate of MO by 1.3 times in 120 min. This may be due to the larger light response range and the lower photogenerated electron hole pairs recombination rate.