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2000
Volume 10, Issue 4
  • ISSN: 2405-4615
  • E-ISSN: 2405-4623

Abstract

Introduction

This study introduces an innovative and eco-friendly approach to synthesizing copper Nanoparticles (NPs) using waste tea, offering a cost-effective alternative. The synthesized waste tea-mediated Cu NPs (WT-CuO NPs) were verified through FTIR, XRD, FE-SEM, EDAX & HR-TEM analytical techniques.

Methods

This research presents a novel and environmentally friendly method for producing copper Nanoparticles (NPs) by utilizing discarded tea, providing a cost-efficient alternative. The study involves the synthesis of CuO nanoparticles through the utilization of waste tea extract.

Results

Optimal degradation outcomes were observed under visible light and sunlight exposure, at a pH of 8, utilizing 50 ppm Rhodamine B dye concentration and 50 mg of WT-CuO NPs, an impressive 98.90% effectiveness in breaking down the material was achieved in just 90 minutes of exposure to visible light. Furthermore, a notable 89.85% degradation efficiency was observed under sunlight exposure during the same time frame.

Conclusion

The practical utility of WT-CuO nanoparticles was exhibited through their remarkable performance in degrading Rhodamine B dye (RhB). A significant 98.90% degradation efficiency was achieved within 90 minutes of exposure to visible light, while a substantial 89.85% degradation efficiency was achieved under sunlight exposure within the same time frame.

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2025-06-27
2026-01-02

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/content/journals/cnm/10.2174/0124054615218191240416050232
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Utilization of Low-Cost Waste Tea-Derived CuO Nanoparticles for Enhanced Photocatalytic Decomposition of Rhodamine B Dye Under Visible Light Irradiation
Curr. Nanomater. 10, 473 (2025); https://doi.org/10.2174/0124054615218191240416050232
/content/journals/cnm/10.2174/0124054615218191240416050232
/content/journals/cnm/10.2174/0124054615218191240416050232
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  • Article Type:     Research Article
Keyword(s): adsorption study; photocatalytic degradation; pseudo-first-order kinetics; rhodamine B dye (RhB); Waste tea; WT-CuO NPs

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