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Microwave-assisted synthesis of ZnO nanoparticles and its photocatalytic activity in degradation of Rhodamine B dye
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| Author:
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HASSAN HABEEB, ABEER A.JAFFER
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| Abstract:
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Synthesis of ZnO nanoparticles
(ZnONPs) using microwave irradiation is carried out by anhydrous hydrazine
(N2H4
).
The effect of calcination temperature on the characteristics properties of ZnO NPs have been investigated. Structural
and chemical composition ofZnO NPs were characterized X-ray diffraction
(XRD
)and energy dispersive
spectroscopy
(EDS
). Morphological properties of synthesized nanoparticleswere analyzed using field emission scanning
electron microscopy
(FESEM
) andtransmission electron microscopy
(TEM
). Fourier transform infrared spectroscopy
(FTIR
)was used to investigate the presence of functional groups.Atomic force microscopy
(AFM
) was adopted to
visualize surface topology. UV-Vis diffuse reflectance spectroscopy
(DRS)was used to study the optical properties of
synthesized materials.The FESEM images show that the materials have spherical and semispherical shapes with sizes of
the nanoparticles fall in the nanoscale range.
TheXRD results showed that synthesized materials have packs represents diffraction plans of wurzite-type hexagonal
ZnO. The photocatalytic degradation of Rhodamine B dye
(RB
)using the synthesized ZnO NPs under direct solar light
was also studied. The photocatalytic degradation process involved effects of ZnO type, ZnO dosage, initial dye
concentration.
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| Keyword:
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ZnO; Nanparticles; Microwave irradiation; XRD:FESEM: photocatalytic degradation;RB dye
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| EOI:
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-
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| DOI:
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https://doi.org/10.31838/ijpr/2020.12.01.040
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| Download:
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