Skip to main content

Advertisement

Log in

Biogenic synthesis of novel platinum-palladium bimetallic nanoparticles from aqueous Annona muricata leaf extract for catalytic activity

  • Original Article
  • Published:
3 Biotech Aims and scope Submit manuscript

Abstract

This work reports the fast and effective bio-fabrication of novel platinum-palladium bimetallic nanoparticles (Pt–Pd BNPs) along with their counterparts Pt and Pd monometallic NPs (MNPs) through aqueous Annona muricata leaf extract. The bio-fabrication of the NPs was achieved within 2 h at 100 °C and pH 7 which was established by the occurrence of dark brown color for Pt MNPs and black color for Pd MNPs and Pt–Pd BNPs. NPs were evaluated for their catalytic activity in the reduction of methyl orange (MO), rhodamine-B (rh–B), and methylene blue (MB) textile dyes in presence of sodium borohydride as a reducing agent. Pt–Pd (1:3) BNPs showed higher MO dye degradation (96.84 ± 2.05% in 50 min) followed by Pd MNPs (97.07 ± 1.46% in 60 min), Pt–Pd (3:1) BNPs (97.34 ± 1.17% in 70 min) and Pt–Pd (1:1) BNPs (98.12 ± 1.04% in 80 min). Pd MNPs showed significant catalytic activity in the reduction of rh-B dye by 97.27 ± 1.14% in 12 min followed by Pt–Pd (3:1) BNPs (96.76 ± 2.17% in 18 min), Pt–Pd (1:3) BNPs (96.53 ± 1.97% in 33 min) and Pt–Pd (1:1) BNPs (97.11 ± 2.09% in 39 min). Pt–Pd (1:3) BNPs also showed higher MB dye degradation (96.95 ± 1.57% in 40 min) followed by Pd MNPs (96.22 ± 2.36% in 55 min), Pt–Pd (3:1) BNPs (97.29 ± 1.22% in 75 min) and Pt–Pd (1:1) BNPs (96.45 ± 2.19% in 105 min). However, Pt MNPs showed no catalytic activity. Standard disc diffusion method was used to evaluate the NPs toxicity towards Escherichia coli and Staphylococcus aureus, which showed no inhibitory zones. NPs showed less toxicity compared to potassium dichromate (control) against Artemia nauplii. Among the NPs studied, Pt–Pd (1:1) BNPs showed less toxicity with 100% mortality only at 100 µg/mL concentration followed by Pt MNPs (≥ 80 µg/mL), Pt–Pd (1:3) BNPs (≥ 60 µg/mL), Pt–Pd (3:1) BNPs (≥ 60 µg/mL) and Pd MNPs (≥ 40 µg/mL) after 72 h exposure. These evaluations support the application of bio-fabricated Pt–Pd BNPs as nano-catalysts in textile dyes degradation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

Download references

Acknowledgements

Authors thank the Director, National Institute of Technology Warangal for providing the laboratory facilities and M.H.R.D. for providing the fellowship.

Author information

Authors and Affiliations

Authors

Contributions

AV: conceptualization, methodology, experimentation, data curation, writing–original draft preparation. MS: experimentation. NPPP: writing–reviewing and editing. Dr. RRB: supervision.

All authors acknowledge that the material presented in this manuscript has not been previously published, nor is it simultaneously under consideration by any other journal. All authors read and approved the manuscript.

Corresponding author

Correspondence to Rama Raju Baadhe.

Ethics declarations

Conflict of interest

On behalf of all authors, the corresponding author states that there is no conflict of interest in the publication.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 680 KB)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Velidandi, A., Sarvepalli, M., Pabbathi, N.P.P. et al. Biogenic synthesis of novel platinum-palladium bimetallic nanoparticles from aqueous Annona muricata leaf extract for catalytic activity. 3 Biotech 11, 385 (2021). https://doi.org/10.1007/s13205-021-02935-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s13205-021-02935-0

Keywords

Navigation