scholarly journals A carbon membrane-mediated CdSe and TiO2 nanofiber film for enhanced photoelectrochemical degradation of methylene blue

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 11872-11881
Author(s):  
Xinye Zhang ◽  
Xueyue Zhang ◽  
Keting Feng ◽  
Xiaoyun Hu ◽  
Jun Fan ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Electron Transfer ◽  
Carbon Membrane ◽  
Carrier Transfer ◽  
Tio2 Nanofiber ◽  
Transfer Channel ◽  
Nanofiber Film ◽  
Degradation Ability

A CdSe/C/TiO2 nanofiber film was prepared for enhanced photoelectrochemical degradation ability, and carbon membrane as a carrier-transfer-channel could promote electron transfer.

Intramolecular Electron Transfer in Nonconjugated Polyenes

1981 ◽  
Vol 36 (8) ◽  
pp. 859-867 ◽  
Author(s):  
Michael C. Böhm
Keyword(s):  
Electron Transfer ◽  
Perturbation Theory ◽  
Unitary Transformation ◽  
Intramolecular Electron Transfer ◽  
Direct Transfer ◽  
Matrix Elements ◽  
Local Perturbations ◽  
Transfer Channel ◽  
Transfer Mechanisms ◽  
Transport Type

AbstractThe probability of hole-propagation of initially prepared vacancies in 1,5-hexadiene (1) and 1,6-heptadiene (2) as well as the transfer mechanisms in 1 and 2 are studied by means of timedependent perturbation theory. Times of equibrilation of about 10-15 sec are calculated. Local perturbations in the π moieties are efficiently transmitted via CH-σ states while CC-σ functions and the direct transfer channel are less important. The theoretical key step consist in an unitary transformation of the canonical molecular orbitals (CMO's) with the diagonal Fock operator into a set of one-electron states forming a transport-type Fockian, FHT, where only a few matrix elements (between the evoluting orbitals and a set of messenger states) differ from zero.

Methylene Blue Sensitized Degradation of Sodium Hyaluronate through Photoinduced Electron Transfer

2000 ◽  
Vol 29 (4) ◽  
pp. 354-355
Author(s):  
Masanobu Kojima ◽  
Tomoko Takagi ◽  
Chie Matsubara ◽  
Kimitoshi Nakamura
Keyword(s):  
Methylene Blue ◽  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Sodium Hyaluronate

Ultrafast electron transfer between methylene blue and liquid anilines

1998 ◽  
Vol 293 (5-6) ◽  
pp. 343-351 ◽  
Author(s):  
D.P. Andrews ◽  
G.G. McFadyen ◽  
G.S. Beddard
Keyword(s):  
Methylene Blue ◽  
Electron Transfer ◽  
Ultrafast Electron Transfer

Photochemical Electron Transfer in the System Polypyrrole-Methylene Blue

1994 ◽  
Vol 47 (6) ◽  
pp. 1163 ◽  
Author(s):  
D Matthews ◽  
A Altus ◽  
A Hope
Keyword(s):  
Methylene Blue ◽  
Electron Transfer ◽  
Absorption Spectrum ◽  
Absorption Spectra ◽  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Laser Flash ◽  
Vitamin K1 ◽  
Photochemical Reduction ◽  
Long Chain

Methylene Blue incorporated into colloidal oxidized polypyrrole was investigated by absorption spectroscopy and laser flash photolysis. The absorption spectra of Methylene Blue and polypyrrole were unaffected by incorporation. Flash photolysis transients of Methylene Blue and triplet Methylene Blue in ethanol were affected by 1,4-benzoquinone and 1,4-benzoquinol but not by the long-chain naphthoquinone Vitamin K1. Incorporation of Methylene Blue in polypyrrole produced distinct changes in the flash photolysis transients of Methylene Blue and triplet Methylene Blue. Very long-lived transients, with lifetimes of the order of 10 ms, were observed. These effects were accompanied by long-lived changes in the absorption spectrum of Methylene Blue. The transients were modified by the addition of 1,4-benzoquinone but not 1,4-benzoquinol. The results indicate photochemical reduction of oxidized polypyrrole by triplet Methylene Blue with the production of stable long-lived species capable of reducing 1,4-benzoquinone.

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