Optical CuAl2O4 used as photocatalyst for IC dye degradation

The nanocrystalline copper aluminate (CuAl2O4) has been successfully synthesized by a simple, economical, and environmentally friendly solid-state mechanochemical (MCH) method. The prepared sample was characterized by a variety of suitable methods employed, including scanning electron microscopy (SE...

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Bibliographic Details
Published in:Water practice and technology 2024-05, Vol.19 (5), p.2032-2044
Main Authors: Dabhade, Ganesh, Malpure, Ankita, Borhade, Ashok, Shewale, Yogita, Kushare, Sachin, Daware, Gaurav, Rajesh, Yennam
Format: Article
Language:English
Subjects:
Aqueous solutions
Catalytic activity
Chromatography
Degradation
Diffuse reflectance spectroscopy
Dyes
Electron microscopy
Fourier transforms
ic breakdown
Indigo
Infrared spectroscopy
Liquid chromatography
Mass spectrometry
Mass spectroscopy
mch
mixed metal oxide
Photocatalysis
Photocatalysts
Reflectance
Scanning electron microscopy
Spectrum analysis
Ultraviolet radiation
Ultraviolet reflection
X ray powder diffraction
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Summary:The nanocrystalline copper aluminate (CuAl2O4) has been successfully synthesized by a simple, economical, and environmentally friendly solid-state mechanochemical (MCH) method. The prepared sample was characterized by a variety of suitable methods employed, including scanning electron microscopy (SEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-DRS), Fourier transform infrared spectroscopy (FT-IR), and X-ray powder diffraction (XRD). The material's average particle size was 55 nm and stoichiometric. CuAl2O4 has been found to exhibit potent photocatalytic activity toward indigo carmine (IC) when subjected to UV light. Under UV radiation, 10 mg CuAl2O4 leads to 99 ± 1% degradation of an 8 ppm IC dye solution among 2 ppm, 4 ppm, 6 ppm, 8 ppm, and 10 ppm in 25 min. In addition, a prospective liquid chromatography-mass spectrometry (LC-MS) technique is identified in the current work, which provides potential routes for the photocatalytic breakdown of IC. Even after five consecutive cycles, the photocatalyst showed remarkable reusability and stability.
ISSN:1751-231X
1751-231X
DOI:10.2166/wpt.2024.107