Upcycling of plastic waste into fluorescent carbon dots: An environmentally viable transformation to biocompatible C-dots with potential prospective in analytical applications

Waste Management
Savita ChaudharyGanga Ram Chaudhary

Abstract

The profitable impact on ecological system made the upcycling of plastic waste as one of the captivating issues in scientific world. The current work highlights the sustainable approach to transform the plastic waste comprises of bottles, used cups and polyethylene bags via simple heating to fluorescent carbon dots (C-dots). The obtained C-dots have displayed the absorption peaks around at 260 nm with size ranging between 5 and 30 nm. The upcycling has produced the structural changes in plastic waste and affected the optical properties of C-dots. The three types of used plastic waste as precursor have displayed excellent emission properties with peak positioned around 422 nm and quantum yield (QY) values ∼62, 65 and 64% for C-dots generated from plastic polybags, cups and bottles (P-CDs, C-CDs and B-CDs) respectively. The toxicity profiling of C-dots has been successfully tested by employing multi-assay biocompatible activities i.e. antibacterial and antifungal activities. The potential prospective of C-dots derived from plastic waste have further been explored in analytical applications involving selective copper metal ion sensing in aqueous media. The outcomes of the current studies have highlighted the potential accomplishme...Continue Reading

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Citations

May 19, 2021·ChemSusChem·Xi ChenLei Zhang
Jun 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Ravindra PrajapatiBrajendra K Sharma
Jun 30, 2021·Journal of Hazardous Materials·Lili LiangGrzegorz Lisak
Aug 24, 2021·Environmental Monitoring and Assessment·Hassan El-RamadyYahya Eid

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