Nickel doped CoAl2O4@CNT nanocomposite: Synthesis, characterization, and evaluation of sunlight driven catalytic studies

The breakdown of the coloured and colourless organic dyes under natural sunlight was investigated by the prepared photocatalysts. Cobalt aluminate (CoAl2O4, CA) and nickel doped cobalt aluminate (Ni–CoAl2O4, NCA) were well synthesized by an easy pechini route. Ultra-sonication route was followed to...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2022-07, Vol.636, p.413873, Article 413873
Main Authors: Irshad, Amna, Shahid, Muhammad, El-Bahy, Salah M., El Azab, Islam H., Mersal, Gaber A.M., Ibrahim, Mohamed M., Agboola, Philips O., Shakir, Imran
Format: Article
Language:English
Subjects:
Benzoic acid
Carbon
Carbon nanotubes
Catalytic activity
Chemical synthesis
Cobalt
Cobalt aluminate
Functional groups
Methylene blue
Nanocomposites
Nanotubes
Nickel
Optical properties
Photocatalysis
Photocatalysts
Photodegradation
Pollutants
Spinel oxide
Sunlight
XRD
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Summary:The breakdown of the coloured and colourless organic dyes under natural sunlight was investigated by the prepared photocatalysts. Cobalt aluminate (CoAl2O4, CA) and nickel doped cobalt aluminate (Ni–CoAl2O4, NCA) were well synthesized by an easy pechini route. Ultra-sonication route was followed to prepare composite with carbon nanotubes (CoAl2O4@CNT, NCA@CNT). The prepared catalysts were comprehensively characterized by various techniques. Spinel structure and functional groups of synthesized photocatalysts was confirmed by XRD and FT-IR techniques. The surface morphology of the synthesized materials was analyzed via SEM. The optical properties of fabricated photocatalysts were investigated via UV–Visible spectroscopy. NCA@CNT nanocomposite exhibited greater photocatalytic activity than doped and undoped photocatalysts. NCA@CNT exhibited 92.7%, 88.77%, and 63.34% photodegradation of crystal violet, methylene blue, and benzoic acid respectively. A scavenger experiment was carried out to figure out efficient photoactive species taking part in the photodegradation of organic pollutants. [Display omitted] •Simple facile route was adopted to prepare CoAl2O4@CNT Nanocomposite, a new photocatalyst.•XRD and SEM confirmed the structural and morphological aspects.•Solar light induced catalytic degradation of coloured and colorless compounds was investigated.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2022.413873