Quercetin-sensitized BiOF nanostructures

An investigation on photoinduced charge transfer and regeneration process for degradation of organic pollutants

Mohit Yadav, Seema Garg, Amrish Chandra, K. Hernádi

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Article number112014
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume383
DOIs
Publication statusPublished - Oct 1 2019

Fingerprint

Organic pollutants
Quercetin
Chromophores
regeneration
contaminants
Charge transfer
Nanostructures
charge transfer
degradation
Degradation
Flavonoids
leaves
Charge injection
chromophores
Energy harvesting
Photodegradation
Coloring
Ethylene glycol
Solar radiation
routes

Keywords

  • Benzotriazole
  • Bismuth oxyfluoride
  • Methyl orange
  • Photocatalysis
  • Plant extract
  • Quercetin

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Cite this

@article{2359c63867d54b4180b5b1492060e202,
title = "Quercetin-sensitized BiOF nanostructures: An investigation on photoinduced charge transfer and regeneration process for degradation of organic pollutants",
abstract = "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.",
keywords = "Benzotriazole, Bismuth oxyfluoride, Methyl orange, Photocatalysis, Plant extract, Quercetin",
author = "Mohit Yadav and Seema Garg and Amrish Chandra and K. Hern{\'a}di",
year = "2019",
month = "10",
day = "1",
doi = "10.1016/j.jphotochem.2019.112014",
language = "English",
volume = "383",
journal = "Journal of Photochemistry and Photobiology A: Chemistry",
issn = "1010-6030",
publisher = "Elsevier",

}

TY - JOUR

T1 - Quercetin-sensitized BiOF nanostructures

T2 - An investigation on photoinduced charge transfer and regeneration process for degradation of organic pollutants

AU - Yadav, Mohit

AU - Garg, Seema

AU - Chandra, Amrish

AU - Hernádi, K.

PY - 2019/10/1

Y1 - 2019/10/1

N2 - 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.

AB - 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.

KW - Benzotriazole

KW - Bismuth oxyfluoride

KW - Methyl orange

KW - Photocatalysis

KW - Plant extract

KW - Quercetin

UR - http://www.scopus.com/inward/record.url?scp=85070194839&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85070194839&partnerID=8YFLogxK

U2 - 10.1016/j.jphotochem.2019.112014

DO - 10.1016/j.jphotochem.2019.112014

M3 - Article

VL - 383

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

SN - 1010-6030

M1 - 112014

ER -