2024-03-29T02:16:35Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00017920
2022-12-14T04:27:27Z
1309:1310
Decomposition of methyl orange using C-60 fullerene adsorbed on silica gel as a photocatalyst via visible-light induced electron transfer
Wakimoto, Ryo
Kitamura, Tamako
Ito, Fuyu
Usami, Hisanao
Moriwaki, Hiroshi
Fullerene
C-60 fullerene adsorbed on silica gel
Photoinduced electron-transfer
Visible light
Methyl orange
Visible-light induced electron transfer reactions of C60 fullerene adsorbed on silica gel (C60/SiO2 powder) to methyl orange in water have been studied. The C60/SiO2 powder was simply prepared by mixing a toluene solution of the C60 fullerene with silica gel followed by evaporating the toluene. Irradiation by visible light (>420 nm) of the methyl orange aqueous solution (25 μM) in the presence of the C60/SiO2 powder and ascorbic acid resulted in the decomposition of the methyl orange. These results showed that the degradation conversion reached 96% after a 25-min visible light irradiation. The reaction also occurred by the irradiation of sunlight. The reductive products of methyl orange, N,N-dimethyl-p-phenylenediamine and sulfanilic acid, were ascertained and monitored by liquid chromatography/mass spectrometry (LC/MS). The reaction did not occur in the dark and in the absence of C60/SiO2 or ascorbic acid. The possible mechanism of the reaction is discussed. Furthermore, the C60/SiO2 powder was applied to a continuous flow system for the photodecomposition of methyl orange. C60/SiO2 powder was packed in a glass tube. The methyl orange solution was pumped into the glass tube, and the tube was irradiated by visible light or sunlight. The continuous decomposition of methyl orange was achieved by this method.
Article
APPLIED CATALYSIS B-ENVIRONMENTAL. 166:544-550 (2015)
journal article
ELSEVIER SCIENCE BV
2015-05
application/pdf
APPLIED CATALYSIS B-ENVIRONMENTAL
166
544
550
0926-3373
AA1082551X
https://soar-ir.repo.nii.ac.jp/record/17920/files/Decomposition_of_methyl_orange_using.pdf
eng
10.1016/j.apcatb.2014.12.010
https://doi.org/10.1016/j.apcatb.2014.12.010
© 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/