Visible-Light-Responsive Clay/Polypyrrole-Grafted SrCo 2 O 4 Nanocomposite for Photocatalytic Degradation of Organic Pollutants

Sebbah, Ouardia; Bennabi, Lamia; Benhebal, Hadj; Kadi, Samir; Lazzara, Giuseppe; Ferlito, Chiara; Mahy, Julien; Lambert, Stéphanie

doi:10.1142/S0219581X26500158

Article (Scientific journals)

Visible-Light-Responsive Clay/Polypyrrole-Grafted SrCo 2 O 4 Nanocomposite for Photocatalytic Degradation of Organic Pollutants

Sebbah, Ouardia; Bennabi, Lamia; Benhebal, Hadj et al.

2026 • In International Journal of Nanoscience

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/347459

DOI
10.1142/S0219581X26500158

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Keywords :

Photocatalysis; nanocomposite; clay; polypyrrole; SrCo 2 O 4; Congo red

Abstract :

[en] The synthesis and application of clay-polymer nanocomposites have driven extensive research as new classes of emerging nanomaterials due to their novel and improved properties compared with their pure constituents. In addition, polymer/clay nanocomposites can be used as supports for semiconductor oxides used as photocatalysts in water treatment. In this study, SrCo 2 O 4 nanoparticles are added to the surface of polypyrrole-modi¯ed natural clay to successfully produce a photocatalytic system nanocomposite known as Clay/PPy/SrCo 2 O 4 (CPSC) to degrade Congo Red (CR) dye under visible light. The as-synthesized CPSC ternary nanocomposite and its individual constituents were fully characterized using structural (XRD), morphological (SEM), spectroscopic (FTIR), and thermal analysis (DSC and TGA) techniques. The photocatalytic activity of the as-synthesized photocatalyst is remarkably excellent. The photocatalytic degradation of CR by Clay/PPy/SrCo 2 O 4 achieved 99% in 100 min. The highest e±ciency was observed at 1.0 g/L CPSC, 30 mg/L CR, and pH 4. Tests with the same pH and the same charge of the photocatalyst were carried out on solutions with lower concentrations of CR (10 and 15 mg/L), and we found that a duration of 30 min was sufficient to achieve complete decolorization (100%).

Disciplines :

Materials science & engineering
Chemical engineering

Author, co-author :

Sebbah, Ouardia; Synthesis and Catalysis Laboratory, University of Tiaret, Tiaret, Algeria

Bennabi, Lamia; Faculty of Technological Sciences, University Belhadj Bouchaib of Ain Temouchent, Algeria

Benhebal, Hadj; Department of Chemistry, Faculty of Matter Sciences, University of Tiaret, Tiaret, Algeria

Kadi, Samir; Biodiversity, Health and Valorisation Of Biological Resources Laboratory, Department of Biology, University of Tiaret, Tiaret, Algeria

Lazzara, Giuseppe; Dipartimento Di Fisica E Chimica, Department of Chemical Engineering-Nanomaterials, Catalysis and Electrochemistry, Universit a Degli Studi Di Palermo, Palermo, Italy ; University of Liege, Liege, Belgium

Ferlito, Chiara; Dipartimento Di Fisica E Chimica, Department of Chemical Engineering-Nanomaterials, Catalysis and Electrochemistry, Universit a Degli Studi Di Palermo, Palermo, Italy ; University of Liege, Liege, Belgium

Mahy, Julien ; Université de Liège - ULiège > Chemical engineering

Lambert, Stéphanie ; Université de Liège - ULiège > Chemical engineering

Language :

English

Title :

Visible-Light-Responsive Clay/Polypyrrole-Grafted SrCo 2 O 4 Nanocomposite for Photocatalytic Degradation of Organic Pollutants

Publication date :

26 June 2026

Journal title :

International Journal of Nanoscience

ISSN :

0219-581X

Publisher :

World Scientific Pub Co Pte Ltd

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://www.worldscientific.com/doi/pdf/10.1142/S0219581X26500158

Available on ORBi :

since 24 July 2026

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