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Co3O4/NiO nanocomposite as a thermocatalytic and photocatalytic material for the degradation of malachite green dye

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Abstract

Herein, the Co3O4/NiO nanocomposite has been synthesized as a catalyst for thermal degradation and photodegradation of the malachite green dye. Its morphology showed small spherical particles with an average particle size of 52.82 ± 17.73 nm. The XRD pattern and XPS analysis proved the formation of Co3O4/NiO nanocomposite with the growth of both Co3O4 and NiO at crystal contents proportions of 67.7 ± 17% and 32.3 ± 16%, respectively. The TGA results indicated that the Co3O4/NiO nanocomposite is nearly thermally stable up to 1000 °C. The synthesized Co3O4/NiO nanocomposite recorded an optical energy band gap of 4.27 eV and a surface area of 27.4933 m2/g. Besides, its photocatalytic activity was compared with the photolysis and thermocatalytic activity. The velocity constant (kapp) value for photocatalysis was higher than that for photolysis by ten folds. Besides, various effects like dye concentration, pH, catalyst amount, and different scavengers were also evaluated.

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Acknowledgements

The Deanship of Scientific Research (DSR) at King Abdulaziz University (KAU), Jeddah, Saudi Arabia, has funded this project under grant no. (KEP-MSc: 55-247-1443)

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Authors and Affiliations

  1. Department of Chemistry, Govt. Post Graduate College Nowshera, Nowshera, 24100, Khyber Pakhtunkhwa, Pakistan

    Waseeq Ur Rehman, Muhammad Tayyab Noor Khattak & Shah Hussain

  2. Department of Chemistry, Bacha Khan University, Charsadda, 24420, Khyber Pakhtunkhwa, Pakistan

    Waseeq Ur Rehman & Zarbad Shah

  3. Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia

    Abdu Saeed

  4. Department of Physics, Thamar University, 87246, Thamar, Yemen

    Abdu Saeed

  5. Department of Physics, Jinnah College for Women, University of Peshawar, Peshawar, 25120, Khyber Pakhtunkhwa, Pakistan

    Kausar Shaheen

  6. The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing, 100124, China

    Kausar Shaheen

  7. Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia

    Esraa M. Bakhsh, Haneen M. Alraddadi, Taghreed M. Fagieh, Kalsoom Akhtar & Sher Bahadar Khan

  8. Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia

    Sher Bahadar Khan

  9. Department of Chemistry, School of Natural Sciences (SNS), National University of Sciences & Technology (NUST), H-12, Islamabad, 44000, Pakistan

    Shahid Ali Khan

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  1. Waseeq Ur Rehman
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Contributions

WUR contributed toward conceptional, methodology; formal analysis; investigation; data Curation; writing—original draft. TNK contributed toward methodology; investigation; data Curation; writing—original draft. AS contributed toward validation, data Curation; writing—review & editing. KS contributed toward investigation, writing—original draft. ZS contributed toward investigation, writing—original draft. SH contributed toward validation, writing—original draft. EMB contributed toward investigation, writing—original draft. HMA contributed toward investigation—writing—original draft. TMF contributed toward validation, writing—original draft. KA contributed toward investigation, writing—original draft. SBK contributed toward investigation, funding, writing—original draft. SAK contributed toward conceptional, supervision; formal analysis; investigation; data Curation; resources; writing—review & editing.

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Rehman, W.U., Khattak, M.N., Saeed, A. et al. Co3O4/NiO nanocomposite as a thermocatalytic and photocatalytic material for the degradation of malachite green dye. J Mater Sci: Mater Electron 34, 15 (2023). https://doi.org/10.1007/s10854-022-09428-7

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