Startseite Cobalt aluminates prepared by ultrasonic-assisted synthesis using different surfactants for Congo red photocatalytic degradation
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Cobalt aluminates prepared by ultrasonic-assisted synthesis using different surfactants for Congo red photocatalytic degradation

  • Enis Muhammet Gul ORCID logo , Fatma Tugce Senberber Dumanli ORCID logo und Emek Moroydor Derun ORCID logo EMAIL logo
Veröffentlicht/Copyright: 17. Februar 2025
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 116 Heft 2

Abstract

Bright blue cobalt aluminate powders were prepared using ultrasonic-assisted co-precipitation and hydrothermal methods. In addition, triethylamine (TEA), butyrolactam (BL), and n-cetyl-n,n,n-trimethylammonium bromide (CTAB) surfactants were used during synthesis to enhance the sample characteristics. The prepared compounds were compared based on their photocatalytic characteristics and the degradation of Congo Red (CR). From X-ray diffraction, the synthesised compounds were identified as CoAl2O4 with a spinel structure. Scanning electron microscopy revealed that polygonal particles were obtained in the ultrasonic-assisted co-precipitation method whereas rounded particles were obtained in the ultrasonic-assisted hydrothermal method. The most homogeneous morphology was seen in the co-precipitation sample using TEA, and the smallest particles were observed in the hydrothermal samples using BL. The highest CR removal was achieved in the co-precipitation and hydrothermal samples prepared using TEA, with 46.15 % and 39 % removal, respectively. The determination of the optimal experimental parameters was effective in enhancing the photocatalytic properties of spinel CoAl2O4.

Keywords: CoAl2O4; Photodegradation; Spinel; Surfactant; Ultrasonic treatment
Corresponding author: Emek Moroydor Derun, Faculty of Chemical and Metallurgical Engineering, Chemical Engineering Department, Yildiz Technical University, Davutpasa Street No.127, 34220 Esenler, Istanbul, Türkiye, E-mail:

Acknowledgments

The authors are grateful to Zeynep Ozturk, Selin Gurel, Mehmet Onat and Berkay Karaman for their support in the laboratory.

  1. Research ethics: Not applicable.

  2. Informed consent: Not applicable.

  3. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: None declared.

  5. Conflict of interests: The authors state no conflict of interest.

  6. Research funding: None declared.

  7. Data availability: Not applicable.

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Received: 2024-03-03
Accepted: 2024-08-07
Published Online: 2025-02-17
Published in Print: 2025-02-25

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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  13. News
  14. DGM – Deutsche Gesellschaft für Materialkunde
https://doi.org/10.1515/ijmr-2024-0084
Schlagwörter für diesen Artikel
CoAl2O4; Photodegradation; Spinel; Surfactant; Ultrasonic treatment

Artikel in diesem Heft

  1. Frontmatter
  2. Review
  3. A review on advancement in mechanical and structural properties of graphene reinforced aluminium matrix composites
  4. Original Papers
  5. Effect of pH and Yb3+ doping concentration on the structure and upconversion luminescence properties of GdPO4:Er3+,Yb3+
  6. Fabrication and characterization of reduced graphene oxide on MoS2 film for IR detectors
  7. Green synthesis of highly luminous lemon juice-based carbon dots for antimicrobial assessment and fingerprint detection
  8. Cobalt aluminates prepared by ultrasonic-assisted synthesis using different surfactants for Congo red photocatalytic degradation
  9. Molecular dynamics study of the dissolution of crystalline and amorphous nickel nanoparticles in aluminium
  10. Effect of Zr content on strain-induced precipitation behavior of Ti–Zr microalloyed low-carbon steel
  11. On 2-stage martensitic transformation behavior in aged Ti50.5Ni33.5Cu11.5Pd4.5 alloys with near-zero thermal hysteresis
  12. Microstructure, XRD characteristics and tribological behavior of SiC–graphite reinforced Cu-matrix hybrid composites
  13. News
  14. DGM – Deutsche Gesellschaft für Materialkunde
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