Nano-a-Fe^sub 2^O^sub 3^ enhanced photocatalytic degradation of diethyl phthalate ester by citric Acid/UV (300–400?nm): A mechanism study

Nano-α-Fe2O3 can accelerate the degradation of diethyl phthalate ester (DEP) in the presence of citric acid under UV (300–400 nm) irradiation, but the underlying mechanism remains unclear. In this study, based on ultraviolet photoelectron spectra (UPS) and density functional theory (DFT) analyses, i...

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Bibliographic Details
Published in:Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 2018-06, Vol.360, p.78
Main Authors: Shuai, Wenjuan, Liu, Cun, Fang, Guodong, Zhou, Dongmei, Gao, Juan
Format: Article
Language:English
Subjects:
Band gap
Carboxyl group
Catalysis
Catalysts
Citric acid
Density functional theory
Diethyl phthalate
Dissolved oxygen
Hematite
Iron oxides
Irradiation
Metal oxides
Organic acids
Organic chemistry
Oxides
Oxygen
Photodegradation
Photoelectron spectroscopy
Pollutants
Reactive oxygen species
Spectrum analysis
Ultraviolet radiation
Ultraviolet spectra
X ray photoelectron spectroscopy
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Summary:Nano-α-Fe2O3 can accelerate the degradation of diethyl phthalate ester (DEP) in the presence of citric acid under UV (300–400 nm) irradiation, but the underlying mechanism remains unclear. In this study, based on ultraviolet photoelectron spectra (UPS) and density functional theory (DFT) analyses, it was found that thermodynamically, a lower bandgap energy (Ebandgap = ECB-EVB 
ISSN:1010-6030
1873-2666