Open AccessElectrical, dielectric and photocatalytic properties of Fe-doped ZnO nanomaterials synthesized by sol gel method
Author(s) -
Yacine Cherifi,
Ahcène Chaouchi,
Yannick Lorgoilloux,
Mohamed Rguiti,
A. Kadri,
Christian Courtois
Publication year - 2016
Publication title -
processing and application of ceramics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.326
H-Index - 15
eISSN - 2406-1034
pISSN - 1820-6131
DOI - 10.2298/pac1603125c
Subject(s) - materials science , wurtzite crystal structure , dielectric spectroscopy , photocatalysis , doping , nanomaterials , band gap , dielectric , fermi level , nanoparticle , chemical engineering , analytical chemistry (journal) , nanotechnology , optoelectronics , zinc , chemistry , electrochemistry , metallurgy , catalysis , organic chemistry , physics , electrode , quantum mechanics , electron , engineering
Fe-doped ZnO nanoparticles were synthesized by sol gel technique. Fine-scale and single phase hexagonal wurtzite structure in all samples were confirmed by SEM and XRD, respectively. The band gap energy depends on the amount of Fe and was found to be in the range of 3.11–2.53 eV. The electric and dielectric properties were investigated using complex impedance spectroscopy. AC conductivity data were correlated with the barrier hopping (CBH) model to evaluate the binding energy (Wm), the minimum hopping distance (Rmin) and the density of states at Fermi level, N(EF). Fe doping in ZnO also improved the photocatalytic activity. Thus, the sample Zn0.95Fe0.05O showed high degradation potential towards methylene blue (MB), i.e. it degrades 90% of BM in 90 min under UV light
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