Nitrogen doped Carbon Quantum Dots from anti-oxidant rich seeds of Caesalpinia bonducella for tunable fluorescence and catalytic degradation of dichlorophenol

Fairlin Jenitha R; Sudha Parimala S

Volume : X, Issue : VI, June - 2020

Nitrogen doped Carbon Quantum Dots from anti-oxidant rich seeds of Caesalpinia bonducella for tunable fluorescence and catalytic degradation of dichlorophenol

Fairlin Jenitha R, Sudha Parimala S

Abstract :

There is a growing demand for a simple, economical and energy efficient process for synthesizing functionalized Carbon Quantum Dots (CQDs) with multifunctional activity. The present study deals with tapping the antioxidant property of the seed of Caesalpinia bonducella (as precursor) for the synthesis of Nitrogen (self) doped Carbon Quantum Dots (N–CQD)through a simple hydrothermal process. The microstructure, surface morphology and chemical composition of the assynthesized sample was confirmed by analytical tools. The influence of the radical quenching ability of the precursor, is being considered for its potential application as an adsorption and photo catalyst with tunable emission property upon conversion to N–CQD. Based on the concept, the as prepared sample of N–CQD was screened for its efficiency as an adsorption and photo catalyst in the degradation of dichlorophenols and decoloration of organic dye of methylene blue. The observed tunable fluorescence efficiency more in the greenish region of the spectrum offers wider scope for further exploration for bioimaging of cancer cells and for waste water treatment. The reports of the study add more value to the simple, energy efficient synthesis and the multi functional applications of solid state N–CQDs for water purifications, safer bio imaging of cells and electronic research.