An investigation on the photocatalytic and antibacterial response of green fluorescent carbon dots synthesized from corn flour-Reference-Cited by-同舟云学术

An investigation on the photocatalytic and antibacterial response of green fluorescent carbon dots synthesized from corn flour

Published:2024-05-30 Issue: Volume: Page:
ISSN:0942-9352
Container-title:Zeitschrift für Physikalische Chemie
language:en
Short-container-title:

Author:

R Rachana¹,M Aswathy¹,N Vinitha¹,Mariya Ancy²,K Mini Krishna¹

Affiliation:

1. Department of Physics , Vimala College (Autonomous) (Affiliated to University of Calicut) , Thrissur, Kerala , India

2. Department of Physics , St Aloysius College (Affiliated to University of Calicut) , Elthuruth , Thrissur , Kerala , India

Abstract

Abstract The present work elucidates on a facile hydrothermal synthesis method for producing highly fluorescent carbon dots using corn flour as a natural carbon source. The structural confirmation was validated through XRD (X-ray Diffraction), HR-TEM (High-Resolution Transmission Electron Microscope), and FTIR (Fourier Transform Infra-Red) studies. The synthesized carbon dots exhibited an excitation-dependent photoluminescence (PL) emission. The optical band gap of as-synthesized carbon dots was estimated using UV-absorption spectral analysis. The variation in optical and luminescent response of the carbon dot suspension with the rate of centrifugation was also monitored. Furthermore, investigations on the photocatalytic response of as-synthesized carbon dots towards degradation of methylene blue and its activity as a potential antimicrobial agent against Escherichia coli are also presented.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/zpch-2024-0793/pdf

Reference19 articles.

1. Jiang, C.; Wu, H.; Song, X.; Ma, X.; Wang, J.; Tan, M. Presence of Photoluminescent Carbon Dots in Nescafe® Original Instant Coffee: Applications to Bioimaging. Talanta 2014, 127, 68–74; https://doi.org/10.1016/j.talanta.2014.01.046.

2. Sun, X.; Lei, Y. Fluorescent Carbon Dots and Their Sensing Applications. In TrAC – Trends in Analytical Chemistry; Elsevier B.V.: Amsterdam, The Netherlands, 89, 2017; pp. 163–180.

3. Wei, J.; Zhang, X.; Sheng, Y.; Shen, J.; Huang, P.; Guo, S.; Pan, J.; Feng, B. Dual Functional Carbon Dots Derived from Cornflour via a Simple One-Pot Hydrothermal Route. Mater. Lett. 2014, 123, 107–111; https://doi.org/10.1016/j.matlet.2014.02.090.

4. Sim, L. C.; Tai, J. Y.; Khor, J. M.; Wong, J. L.; Lee, J. Y.; Leong, K. H.; Saravanan, P.; Aziz, A. A. Carbon Dots Synthesized from Green Precursors with an Amplified Photoluminescence: Synthesis, Characterization, and its Application. In Nanotechnology in the Life Sciences; Springer Science and Business Media B.V: Berlin, Germany, 2019; pp. 1–33.

5. Liu, W.; Diao, H.; Chang, H.; Wang, H.; Li, T.; Wei, W. Green synthesis of carbon dots from rose-heart raddish and application for Fe3+ detection and cell imaging, Sens.Actuator. B-Chem 2017, 241, 190–198.