waste solar panel;
copper oxide nanoparticles;
green synthesis;
Piper nigrum fruit extract;
antibacterial activity;
END;
D O I:
10.3390/catal14080472
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
To promote environmental development and sustain resource circularity, recycling metals from electronic waste is essential. Electronic waste is a significant secondary source of metals, with its production increasing rapidly and most remaining unrecycled. In solar panels, copper is the second-most-valuable metal after silver. We propose an innovative method to recycle copper from waste solar panels and convert it into copper oxide nanoparticles (CuONPs) using a green synthesis method. Synthesizing CuONPs is advantageous due to their large surface area compared to bulk material. Nitric acid, a strong oxidizing agent, was used to leach copper from solid copper wires in waste solar panels. A green synthesis method, following a bottom-up approach, was employed using Piper nigrum fruit extract to synthesize CuONPs. The synthesized nanoparticles were characterized using various qualitative and quantitative techniques. Spectroscopic analysis confirmed the formation of CuONPs, and transmission electron microscopy revealed that the nanoparticles were spherical with sizes up to 60 nm. Biomolecules from the Piper nigrum extract were detected on the surface of the crystalline CuONPs. These nanoparticles exhibited antibacterial activity against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus using a well-diffusion method, showing a larger zone of inhibition for E. coli compared to S. aureus. This research demonstrates the complete recovery of copper from waste solar panels and its conversion into useful CuONPs, which have potential medicinal applications.
机构:
Mashhad Univ Med Sci, Fac Med, Dept Med Biotechnol & Nanotechnol, Mashhad, IranMashhad Univ Med Sci, Fac Med, Dept Med Biotechnol & Nanotechnol, Mashhad, Iran
Javid-Naderi, Mohammad Javad
Sabouri, Zahra
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机构:
Mashhad Univ Med Sci, Fac Med, Dept Med Biotechnol & Nanotechnol, Mashhad, Iran
Mashhad Univ Med Sci, Med Toxicol Res Ctr, Fac Med, Mashhad, IranMashhad Univ Med Sci, Fac Med, Dept Med Biotechnol & Nanotechnol, Mashhad, Iran
Sabouri, Zahra
Jalili, Amin
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机构:
Mashhad Univ Med Sci, Fac Med, Dept Med Biotechnol & Nanotechnol, Mashhad, IranMashhad Univ Med Sci, Fac Med, Dept Med Biotechnol & Nanotechnol, Mashhad, Iran
Jalili, Amin
Zarrinfar, Hossein
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机构:
Mashhad Univ Med Sci, Allergy Res Ctr, Mashhad, IranMashhad Univ Med Sci, Fac Med, Dept Med Biotechnol & Nanotechnol, Mashhad, Iran
Zarrinfar, Hossein
Samarghandian, Saeed
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机构:
Neyshabur Univ Med Sci, Hlth Ageing Res Ctr, Neyshabur, IranMashhad Univ Med Sci, Fac Med, Dept Med Biotechnol & Nanotechnol, Mashhad, Iran