Open AccessBiosynthesized δ-Bi2O3 Nanoparticles from Crinum viviparum Flower Extract for Photocatalytic Dye Degradation and Molecular Docking
Author(s) -
Prashant B. Chouke,
Kanhaiya M. Dadure,
Ajay K. Potbhare,
Ganesh S. Bhusari,
Aniruddha Mondal,
Karan Chaudhary,
Virender Singh,
Martín Federico Desimone,
Ratiram Gomaji Chaudhary,
Dhanraj T. Masram
Publication year - 2022
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.2c01745
Subject(s) - high resolution transmission electron microscopy , photocatalysis , x ray photoelectron spectroscopy , nuclear chemistry , raman spectroscopy , nanoparticle , bismuth , materials science , chemistry , band gap , chemical engineering , nanotechnology , organic chemistry , transmission electron microscopy , catalysis , optoelectronics , optics , engineering , physics
Bioinspired delta-bismuth oxide nanoparticles (δ-Bi 2 O 3 NPs) have been synthesized using a greener reducing agent and surfactant via co-precipitation method. The originality of this work is the use of Crinum viviparum flower extract for the first time for the fabrication of NPs, which were further calcined at 800 °C to obtain δ-Bi 2 O 3 NPs. Physicochemical studies such as FTIR spectroscopy and XPS confirmed the formation of Bi 2 O 3 NPs, whereas XRD and Raman verified the formation of the cubic delta (δ) phase of Bi 2 O 3 NPs. However, HRTEM revealed the spherical shape with diameter 10-20 nm, while BET studies expose mesoporous nature with a surface area of 71 m 2 /gm. The band gap for δ-Bi 2 O 3 NPs was estimated to be 3.45 eV, which ensured δ-Bi 2 O 3 to be a promising photocatalyst under visible-light irradiation. Therefore, based on the results of physicochemical studies, the bioinspired δ-Bi 2 O 3 NPs were explored as active photocatalysts for the degradation of toxic dyes, viz ., Thymol blue (TB) and Congo red (CR) under visible-light irradiation. The study showed 98.26% degradation of TB in 40 min and 69.67% degradation of CR in 80 min by δ-Bi 2 O 3 NPs. The photogenerated holes and electrons were found responsible for this enhancement. Furthermore, molecular docking investigations were also performed for δ-Bi 2 O 3 NPs to understand its biological function as New Delhi metallo-β-lactamase 1 (NDM-1) [PDB ID 5XP9] enzyme inhibitor, and studies revealed good interaction with various amino acid residues and found good hydrogen bonding with a fine pose energy of -3.851 kcal/mole.