scholarly journals Fluorescence Quenching Reactions due to the Intermolecular Electron Transfer Process in Solution

1970 ◽  
Vol 43 (9) ◽  
pp. 2750-2758 ◽  
Author(s):  
Tadashi Okada ◽  
Hiroo Oohari ◽  
Noboru Mataga
Keyword(s):  
Electron Transfer ◽  
Fluorescence Quenching ◽  
Transfer Process ◽  
Intermolecular Electron Transfer ◽  
Electron Transfer Process

New insights into the nitroaromatics-detection mechanism of the luminescent metal–organic framework sensor

2015 ◽  
Vol 44 (6) ◽  
pp. 2897-2906 ◽  
Author(s):  
Lei Liu ◽  
Xiaofang Chen ◽  
Jieshan Qiu ◽  
Ce Hao
Keyword(s):  
Electron Transfer ◽  
Hydrogen Bonding ◽  
Transfer Process ◽  
Metal Organic Framework ◽  
Luminescence Quenching ◽  
Intermolecular Electron Transfer ◽  
Electron Transfer Process ◽  
Detection Mechanism ◽  
Metal Organic ◽  
First Time

For the first time, hydrogen bonding and π–π stacking are demonstrated to play cooperative roles in the intermolecular electron transfer process from nitrobenzene to MOF sensors, which lead to the luminescence quenching detection of nitrobenzene.

scholarly journals Photosensitized degradation of dinitrosalicylic acid by uranyl ions

2003 ◽  
Vol 5 (4) ◽  
pp. 219-221 ◽  
Author(s):  
A. A. I. Essawy ◽  
M. S. A. Abdel-Mottaleb
Keyword(s):  
Electron Transfer ◽  
Fluorescence Quenching ◽  
Transfer Process ◽  
Radical Pair ◽  
Initial Step ◽  
Uranyl Ion ◽  
Uranyl Ions ◽  
Electron Transfer Process ◽  
Conjugate Acid ◽  
Naoh Solution

The photodegradation of dinitrosalicylic acid (DNS) by photoexcited uranyl ion was studied in aqueous solutions. The failure of DNS to degrade directly with light highlights the importance of the photoexcited uranyl ion in controlling the photochemical processes. Fluorescence quenching studies showed that an electron-transfer process from the DNS to the excited uranyl ion is involved leading to the formation ofUO2+/DNS•+radical pair complex as an initial step. Illumination of theUO22+/DNS solution in presence of oxygen results in mineralization of DNS. The results are explained on the basis of a catalytic cycle involvingUO22+ion and molecular oxygen that generates reactive superoxideO2•−anion and its conjugate acidHO2•. The efficiency of the photocatalytic cycle is enhanced markedly by addition of dilute NaOH solution.

Effect of graphene between photoanode and sensitizer on the intramolecular and intermolecular electron transfer process

2020 ◽  
Vol 22 (11) ◽  
pp. 6391-6400 ◽  
Author(s):  
Xiaofei Wang ◽  
Yuanzuo Li ◽  
Peng Song ◽  
Fengcai Ma ◽  
Yanhui Yang
Keyword(s):  
Electron Transfer ◽  
Transfer Process ◽  
Intermolecular Electron Transfer ◽  
Electron Transfer Process ◽  
Theoretical Simulation ◽  
Graphene Coating

The purpose of this work is to conduct graphene coating treatment on the surface of the photoanode, and explore the feasibility of the scheme by establishing a model and conducting theoretical simulation.

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