Fluorescence characteristics of carbon nanoemitters derived from sucrose by green hydrothermal and microwave methods

Rajesh Patidar; Babulal Rebary; Gopala Ram Bhadu

doi:10.1016/j.saa.2016.06.015

Fluorescence characteristics of carbon nanoemitters derived from sucrose by green hydrothermal and microwave methods

Spectrochim Acta A Mol Biomol Spectrosc. 2016 Dec 5:169:25-9. doi: 10.1016/j.saa.2016.06.015. Epub 2016 Jun 11.

Authors

Rajesh Patidar¹, Babulal Rebary², Gopala Ram Bhadu²

Affiliations

¹ Analytical Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research institute, Bhavnagar 364002, Gujarat, India; P.D. Patel Institute of Applied Sciences, Charotar University of Science & Technology, Changa, Anand 388421, Gujarat, India. Electronic address: rpatidar@csmcri.org.
² Analytical Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research institute, Bhavnagar 364002, Gujarat, India.

PMID: 27314910
DOI: 10.1016/j.saa.2016.06.015

Abstract

In this work, fluorescent carbon nanoparticles (CNPs) were prepared through two green methods i.e. microwave and hydrothermal, using sucrose as carbon precursor. Both of these methods have offered fluorescent CNPs as characterized by TEM, FTIR, zeta potential, absorbance and emission techniques. Excitation dependent emission spectra were exhibited by aqueous dispersion of these CNPs when they were subjected to different excitation wavelengths. The luminous characteristics of CNPs obtained from both of these methods were studied and compared. Their fluorescence stability in water and buffer was monitored for about three months. Influence of pH and various metal ions on emission spectra were investigated.

Keywords: Carbon nanoparticles; Emission; Fluorescence; Hydrothermal; Microwave.