Solvatochromism as a Novel Tool to Enumerate the Optical and Luminescence Properties of Plastic Waste Derived Carbon Nanodots and Their Activated Counterparts.

Savita Chaudhary, Manisha Kumari, Pooja Chauhan, Ganga Ram Chaudhary, Ahmad Umar, Sheikh Akbar, Sotirios Baskoutas

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Article in Nanomaterials (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Savita ChaudharyDepartment of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.

Manisha KumariDepartment of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.

Pooja ChauhanDepartment of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.

Ganga Ram ChaudharyDepartment of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.ORCID 0000-0003-0501-6071

Ahmad UmarCentre for Scientific and Engineering Research, Najran University, Najran 11001, Saudi Arabia.ORCID 0000-0002-8626-1564

Sheikh AkbarDepartment of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA.ORCID 0000-0003-3567-274X

Sotirios BaskoutasDepartment of Materials Science, University of Patras, 26500 Patras, Greece.ORCID 0000-0003-2782-3501

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Herein, we have developed a one-pot methodology to synthesise three types of C-dots and their activated counterparts from three different types of waste plastic precursors such as poly-bags, cups and bottles. The optical studies have shown the significant change in the absorption edge in case of C-dots in comparison to their activated counterparts. The respective variation in the sizes is correlated with the change in electronic band gap values of formed particles. The changes in the luminescence behaviour are also correlated with transitions from the edge of the core of formed particles. The obtained variations in the Stokes shift values of C-dots, and their ACs were used to explore the types of surface states and their related transitions in particles. The mode of interaction between C-dots and their ACs was also determined using solvent-dependent fluorescence spectroscopy. This detailed investigation could provide significant insight on the emission behaviour and the potential usage of formed particles as an effective fluorescent probe in sensing applications.

Indexed as

activated carboncarbon dotsexcitation emissionstoke shifttransition state

Identifiers

PMID37110983

DOI10.3390/nano13081398

PMCPMC10143849

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