An Environmentally Friendly Synthesis of Mn-doped ZnO Nanoparticles and its Enhanced Antibacterial, Electrochemical and Photocatalytic behaviors: Effect of Doping Concentration

Mn-doped ZnO nanoparticles are prepared using orange peel extract and the samples are annealed at 500°C. The structural, morphological and optical properties are examined as a function of doping concentration. The Debye-Scherrer’s formula, Williamson-Hall equation and Halder-Wagner method are employ...

Full description

Saved in:
Bibliographic Details
Published in:Semiconductors (Woodbury, N.Y.) N.Y.), 2024-08, Vol.58 (8), p.611-619
Main Authors: Anitha, G., Nilavazhagan, S., Anbuselvan, D., Karunakaran, M., Chandrasekar, L. Bruno, Sakthipandi, K.
Format: Article
Language:English
Subjects:
Catalytic activity
Crystal defects
Crystallites
Defect annealing
Doping
Dyes
Magnetic Materials
Magnetism
Manganese
Nanoparticles
Optical properties
Photocatalysis
Photodegradation
Physics
Physics and Astronomy
Zinc oxide
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Mn-doped ZnO nanoparticles are prepared using orange peel extract and the samples are annealed at 500°C. The structural, morphological and optical properties are examined as a function of doping concentration. The Debye-Scherrer’s formula, Williamson-Hall equation and Halder-Wagner method are employed to explore the crystallite size of the prepared nanoparticles. The defects of the nanoparticles are enhanced due to the addition of the dopant. The hole concentration is about 4 times greater than the electron concentration. The nanoparticles are positive-type and show the red-shifted band gap as the doping concentration of Mn increases. The enhanced zone of inhibition is observed against Bacillus subtilus , Staphylococcus aureus and Klepsiella pneumonia due to doping. A high specific capacitance of ~600 F/g is observed which corresponds to the 2% Mn-doped nanoparticles. Mn-doped ZnO nanoparticles have excellent photocatalytic activity against methyl orange dye and have the degradation efficiency of 92% in 80 min under visible light.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782624601298