Microwave-Assisted Synthesis of Excitation-Dependent Photoluminescent Graphene Nanosheets from Glucose

Graphene nanosheets (GNS) have attracted attention because of their superior water dispersibility, chemical inertness, photostability against bleaching and low toxicity compared to other carbon materials. In this work, we explored a facile approach to the synthesis of GNS through microwave-assisted carbonization of glucose with different salts at moderate temperature, which can be a relatively green and efficient route to producing such materials. GNS produced under different conditions of temperature, reaction time, pressure, precursor ratios, and salt species, have been carefully characterized by spectroscopic and microscopic techniques to identify optimal synthesis conditions. The results show that GNS synthesized at 240º for 6 hours with a glucose to metal salts mass ratio of 2:3 present a uniform particle size distribution and a high degree of graphitization. To the best of our knowledge, there are no prior reports of the preparation of such high-quality GNS at such mild conditions by a bottom up synthesis method.

Grantor dc:publisher

State University of New York at Buffalo

Year dc:date.issued

2018

Author dc:creator

• Yin, Ruijuan

Contributors dc:contributor

• Swihart, Mark
• Chemical and Biological Engineering

• chemical engineering

Statement dc:rights

• Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.
• Copyright retained by author.

Language dc:language

eng

Handle dc:identifier

http://hdl.handle.net/10477/78113

OAI record oai:identifier

https://ubir.buffalo.edu/oai/request?verb=GetRecord&metadataPrefix=qdc&identifier=oai%3Aubir.buffalo.edu%3A10477%2F78113