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Synthesis and characterization of Fe doped ZnO nanoparticles for the photocatalytic degradation of eriochrome black-T dye

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Title Synthesis and characterization of Fe doped ZnO nanoparticles for the photocatalytic degradation of eriochrome black-T dye
 
Creator Giram, Dipak
Das, Arijit
 
Subject Co-precipitation method
Eriochrome black-T dye
Fe doped ZnO nanoparticles
Kinetics
Photocatalytic degradation
 
Description 39-43
The current investigation presents the synthesis of zinc oxide (ZnO) and iron-doped zinc oxide (Fe:ZnO) nanoparticles
using co-precipitation technique. A comprehensive characterization of the nanoparticles was conducted using XRD,
FESEM, EDS and UV-visible spectroscopy. The XRD analysis revealed that both ZnO and Fe:ZnO nanoparticles exhibited
a hexagonal wurtzite crystal structure. The average crystallite sizes are determined as 18.47 nm for ZnO and 15.32 nm for
Fe:ZnO. Further, UV-visible absorption studies indicate a reduction in the band gap of ZnO upon Fe doping. The FE-SEM
analysis confirms the irregular shaped morphology of the nanoparticles, while EDS analysis validates their elemental
composition. The photocatalytic performance of the prepared nanoparticles has been investigated by employing eriochrome
black T dye as a representative pollutant. Furthermore, the optimization of the photocatalytic degradation process is
achieved by varying process variables like catalyst loading, initial dye concentration, and pH. The experimental finding
demonstrated that Fe:ZnO nanoparticles exhibited significantly enhanced photocatalytic activity compared to pure ZnO
nanoparticles, with a maximum degradation efficiency of 83.47% achieved within 150 min. The degradation kinetics
followed a pseudo-first-order reaction.
 
Date 2024-01-12T12:40:03Z
2024-01-12T12:40:03Z
2024-01
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/63206
https://doi.org/10.56042/ijct.v31i1.4985
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.31(1) [January 2024]