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Chemical/green synthesized cobalt/copper-doped α-Fe2O3 nanoparticles: Potential for environmental remediation

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Abstract

In the present investigation, Azadirachta indica (AI) leaf extract was used to create hematite nanoparticles (HNPs) with varied Co/Cu-dopant concentrations. The perspective characteristics of the synthesized samples were investigated with XRD, UV–Vis, Raman, SEM, TEM, FTIR, and VSM investigations. For HNPs with an average crystalline size of 12.52–23.93 nm, respectively, the XRD pattern showed crystalline hexagonal, corundum crystal structure, and combination of rhombohedral phases. Cauliflower/spherical-shaped morphologies were present in HNPs with a particle size range of 9.64–19.31 nm. Doped HNPs with saturation magnetization of 34.84–226.32 emu/g were found to have antiferromagnetic behavior. The methyl orange (MO) and methylene blue (MB) industrial waste dye degradation by the synthesized Co/Cu-doped HNPs under a UV/visible spectrophotometer demonstrated enhanced photocatalysis consummation, indicating that biosynthesis can be an excellent method for creating flexible and environmentally friendly products. Using a radical scavenging technique is known as 1,1-diphenyl-2-picrylhydrazyl (DPPH), the complex's antioxidant activity was assessed.

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Acknowledgments

The authors are grateful to Centre for Nano-Science and Technology in Career Point University, Hamirpur (H.P.) for providing all the necessary facilities to conduct research work. In addition, the authors are grateful to Sophisticated Analytical Instrumentation Facility, Panjab University, Punjab and Sprint Testing Solutions, Mumbai, for the assistance of characterization of samples.

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Authors and Affiliations

  1. Department of Physics, Career Point University, Hamirpur, Himachal Pradesh, 176041, India

    Pankaj Kumar & Naveen Thakur

  2. Department of Animal Sciences, Central University of Himachal Pradesh, Kangra, Shahpur, Himachal Pradesh, 176206, India

    Sunil Kumar

  3. Himalayan Forest Research Institute, Shimla, Himachal Pradesh, 171009, India

    Ashwani Tapwal

  4. Centre for Nano-Science and Technology, Career Point University, Hamirpur, Himachal Pradesh, 176041, India

    Pankaj Kumar & Naveen Thakur

Authors
  1. Pankaj Kumar
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  2. Sunil Kumar
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  3. Ashwani Tapwal
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  4. Naveen Thakur
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Contributions

PK, NT: Conception and design of study, PK, NT: Acquisition of data, PK, NT: Analysis and/or interpretation of data, PK, SK, AT, NT: Drafting the manuscript, PK, SK, AT, NT Revising the manuscript critically for important intellectual content, PK, SK, AT, and NT: Approval of the version of the manuscript to be published.

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Correspondence to Naveen Thakur.

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Kumar, P., Kumar, S., Tapwal, A. et al. Chemical/green synthesized cobalt/copper-doped α-Fe2O3 nanoparticles: Potential for environmental remediation. Journal of Materials Research 39, 836–849 (2024). https://doi.org/10.1557/s43578-023-01274-5

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