Open AccessGrowth and Gd doping of ZnO nanostructures with enhanced structural, optical properties and photocatalytic applications
Author(s) -
Debasrita Dash,
Dojalisa Sahu
Publication year - 2022
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1219/1/012037
Subject(s) - materials science , photodegradation , photocatalysis , doping , gadolinium , absorbance , band gap , nanoparticle , fourier transform infrared spectroscopy , nanomaterials , chemical engineering , nanotechnology , optoelectronics , catalysis , optics , chemistry , metallurgy , biochemistry , physics , engineering
In this study, pure and Gadolinium doped ZnO (Gd-ZnO) nanoparticles have been synthesized by wet chemical method and the effect of Gadolinium incorporation on the structure and optical activity of ZnO was examined. The average size of the undoped ZnO and Gd-ZnO (0.002 M and 0.003 M) nanoparticles was found to be 48 nm, 44 nm and 42 nm respectively which shows the lattice compression of ZnO after Gd doping. TEM study shows the hexagonal nanocrystallites of Gd-ZnO with size around 45 nm is formed. FTIR study shows the metal-oxygen band below 600 cm −1 and absorbance study gives the information about the narrowing of band gap of ZnO after Gd doping. The photocatalytic degradation efficiency of Gd-ZnO (92 %) has been found to be better as compared to undoped ZnO (89 %) in degrading methyl blue (MB). The photodegradation of MB is found to follow first order kinetics.