Quercetin-sensitized BiOF nanostructures An investigation on photoinduced charge transfer and regeneration process for degradation of organic for pollutants /

In the present work, a non-toxic and economical route was employed for the synthesis of BiOF using Azadirachta indica plant (A.I.) leaf extract (BiOF-P) and its flavonoid constituent i.e. quercetin (BiOF-Q) separately. Simultaneously, ethylene glycol (EG) assisted BiOF was also synthesized by simple...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Yadav Mohit
Garg Seema
Chandra Amrish
Hernádi Klára
Dokumentumtípus: Cikk
Megjelent: 2019
Sorozat:JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 383
doi:10.1016/j.jphotochem.2019.112014

mtmt:30850775
Online Access:http://publicatio.bibl.u-szeged.hu/17816
Leíró adatok
Tartalmi kivonat:In the present work, a non-toxic and economical route was employed for the synthesis of BiOF using Azadirachta indica plant (A.I.) leaf extract (BiOF-P) and its flavonoid constituent i.e. quercetin (BiOF-Q) separately. Simultaneously, ethylene glycol (EG) assisted BiOF was also synthesized by simple hydrolysis route (BiOF-C). The high reducing and stabilizing action of quercetin was demonstrated via spectroscopic and microscopic investigations, which revealed that the green BiOF-P and BiOF-Q samples followed almost similar morphology with much smaller size of the nanoplates and higher specific surface area than BiOF-C. Meanwhile, the leaf extract and quercetin covered an appreciable spectrum of solar radiation ranging from 600 to 700 nm, indicating the presence of coloring constituents i.e. chromophores in the structure. These chromophores imparted yellow color to the green samples leading to a narrow band gap, and boosted the optical window for high level of solar energy harvesting. Moreover, the electron accepting nature of the quercetin facilitated the charge injection to BiOF with subsequent regeneration process under visible light irradiation. The multiple synergistic effects resulted in significantly higher photo-degradation efficiency for benzotriazole (BT) and methyl orange (MO) by green BiOF-P and BiOF-Q samples than BiOF-C.
Terjedelem/Fizikai jellemzők:Azonosító: 112014-Terjedelem: 10 p
ISSN:1010-6030