Premium
Study on photocatalytic performance of cerium–graphene oxide–titanium dioxide composite film for formaldehyde removal
Author(s) -
Li Jia,
Zhang Quan,
Lai Alvin C. K.,
Zeng Liping
Publication year - 2016
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201600261
Subject(s) - photocatalysis , formaldehyde , materials science , graphene , titanium dioxide , cerium , oxide , composite number , chemical engineering , mesoporous material , lamellar structure , coating , nanotechnology , composite material , catalysis , organic chemistry , chemistry , metallurgy , engineering
In order to degrade in‐car formaldehyde gas, graphene oxide (GO), cerium (Ce), and TiO 2 were organically combined by one‐step sol–gel method. Then the mixed collosol was coated onto the surface of inorganic glass substrates to form Ce‐GO‐TiO 2 composite film by way of immersion, coating, and calcinations. The morphology and crystal structure of as‐prepared Ce‐GO‐TiO 2 film were studied by a series of detection techniques. The photocatalytic performance of this film was analyzed by the degradation effect of formaldehyde under simulated sunlight. The results showed that the Ce‐GO‐TiO 2 film had the inbuilt mesoporous structure in the lamellar stacking with particles. When the doping amount of Ce and GO were 0.4 and 0.2% (mass ratio), the composite film can improve effectively the response to the visible light and its degradation rate for low concentration of formaldehyde was up to 83.8% in simulated sunlight for 7 h, which could be attributed to the co‐function of Ce and GO.