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Comparative study of ZnO-TiO2 nanocomposites synthesized by ultrasound and conventional methods for the degradation of methylene blue dye

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Title Comparative study of ZnO-TiO2 nanocomposites synthesized by ultrasound and conventional methods for the degradation of methylene blue dye
 
Creator Giram, Dipak
Das, Arijit
Bhanvase, Bharat
 
Subject Kinetics
Methylene blue
Photocatalytic degradation
Ultrasound assisted synthesis
ZnO-TiO2 nanocomposite
 
Description 693-704
ZnO-TiO2 nanocomposites (ZTN) have been synthesized using both ultrasound-assisted and conventional methods. The characterization techniques like XRD, FTIR, BET, FESEM, EDS, and UV-visible confirmed that the ZTN is successfully formed. The photocatalytic activity and kinetics of the ZTN are assessed using methylene blue (MB) dye as a pollutant. Various factors such as synthesis processes, catalyst loading, initial dye concentration, temperature, and pH have been investigated to determine their impact on dye degradation. The ZTN synthesized with ultrasound exhibited superior photocatalytic activity compared to the conventionally synthesized ZTN. The highest dye degradation (97.69%) was observed under the optimum conditions of 1 g/L photocatalyst dosage, 20 ppm dye concentration, pH 10, and a temperature of 55℃. Additionally, the kinetic study revealed that the degradation of the dye by ZTN followed a second-order kinetic model.
 
Date 2023-09-06T11:06:41Z
2023-09-06T11:06:41Z
2023-09
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/62497
https://doi.org/10.56042/ijct.v30i5.5200
 
Language en
 
Source IJCT Vol.30(5) [September 2023]