Fabrication of carbon nanotube (CNTs)/Co3O4-Ni3O4/Al2O3 nanocomposite catalyst and its application for photocatalytic removal of Celestine blue dye

Ismael, Hussein Idrees; Halbus, Ahmed F.; Alalwani, Thamer A.A.M.; Baqir, Sadiq J.; Athab, Zahraa H.; Atiyah, Abbas J.; Kadhim, Salih H.; Mohammad, Emman J.

doi:10.21608/ejchem.2021.95421.4480

Fabrication of carbon nanotube (CNTs)/Co3O4-Ni3O4/Al2O3 nanocomposite catalyst and its application for photocatalytic removal of Celestine blue dye

Document Type : Original Article

Authors

¹ Department of Chemistry, College of Science, University of Babylon, Hilla, IRAQ

² Department of Chemistry, College of Science, University of Babylon, Hilla, IRAQ.

³ University of Almustakbal College, Babylon, Hilla ,IRAQ

⁴ Al Mustaqbal University College, Babylon, Iraq

⁵ Environmental Research and Studies Center, University of Babylon, Hilla, IRAQ

⁶ university of Babylon, science college, chemistry dept

10.21608/ejchem.2021.95421.4480

Abstract

In this work, we examined the photocatalytic activity of different composite ratios of doped co-oxide (Co3O4-Ni3O4/Al2O3) with carbon nanotubes (CNTs) toward Celestine blue dye (CBD). This work involves preparation of composite catalyst Co3O4-Ni3O4/Al2O3 doped with CNTs in different percent (2%, 4%, 6% and 8%) by using wet impregnation method. The prepared materials were characterized using Fourier transform infrared spectroscopy (FTIR), Atomic force microscope (AFM) and X-rays Diffraction technique(XRD). The photocatalytic activity of these materials were investigated by following photocatalytic removal of Celestine blue dye at λ max= 542 nm and dye concentration equal to 100 ppm in different irradiation times. The obtained results showed that the best percent of doping the co-catalyst with carbon nanotubes was 6%, which gives a high photocatalytic dye removal equal to 99%.

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