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Erschienen in: Journal of Nanoparticle Research 4/2020

01.04.2020 | Research paper

Optimization of system parameters and kinetic study of photocatalytic degradation of toxic acid blue 25 dye by Ag3PO4@RGO nanocomposite

verfasst von: Mehdi Al Kausor, Dhruba Chakrabortty

Erschienen in: Journal of Nanoparticle Research | Ausgabe 4/2020

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Abstract

A heterostructure nanocomposite of Ag3PO4 grafted onto reduced graphene oxide at different weight percentages is synthesised by sol-gel-hydrothermal method and characterised by X-ray diffraction, transmission electron microscopy, and X-ray photoelectron, diffuse reflectance, Raman, Fourier transform infrared, and photoluminescence spectroscopy. The material is used for adsorption and photodegradation of Acid Blue 25 dye in aqueous solution; both are influenced by catalyst load, initial dye concentration, and solution pH. Adsorption follows pseudo first-order kinetics, which can be best fitted with the Lagergren pseudo first-order kinetic model and photocatalytic degradation, a modified Langmuir–Hinshelwood model. Photocatalytic performance of Ag3PO4 is greatly improved when embedded in reduced graphene oxide which is appertained to the small sized, well-dispersed Ag3PO4 particles, high adsorption, and low e+–h pair recombination.

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Metadaten
Titel
Optimization of system parameters and kinetic study of photocatalytic degradation of toxic acid blue 25 dye by Ag3PO4@RGO nanocomposite
verfasst von
Mehdi Al Kausor
Dhruba Chakrabortty
Publikationsdatum
01.04.2020
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 4/2020
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-020-04829-3

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