Journal of Advanced Materials and Technologies

Journal of Advanced Materials and Technologies

Comparison of Carbon Nitride Nanosheets Synthesized by Thermal and Ultrasonic Thermal (combined) Methods

Document Type : Original Reaearch Article

Authors
Mohammadreza Kabirian
Ahmad Salehi
Sayed Khatiboleslam Sadrnezhaad
Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
10.30501/jamt.2020.93224
Abstract
In this research, carbon nitride nanosheets were synthesized from melamine precursor by both thermal and combined methods. Melamine first reached 550 °C for 75 minutes and remained at this temperature for 4 hours until g-C3N4 was obtained. In the heating method, the produced g-C3N4 reached 500 °C for 100 minutes and stored at this temperature for 3 hours to obtain nanosheet carbon nitride. In the combined approach, g-C3N4 was first sonicated for 130 minutes in a solution of water and ethanol and then the heating process was repeated for it. Sample characterization by X-ray diffraction (XRD), scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), and Brunauer-Emmett-Teller (BET) surface area analysis were done. The photocatalytic performance of the samples was evaluated by measuring the degradation of the rhodamine b. It was found that both methods are capable of producing carbon nitride of nanosheet shape. In the combined approach, over the same period, nanosheets of about 30% less thickness than the heating method can be made. Samples that were made by the combined way showed better photocatalytic activity than thermal samples.
Keywords
Nanosheet
Carbon Nitride
g-C3N4
Thermal Method
Combined Method

Subjects

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Journal of Advanced Materials and Technologies
Volume 8, Issue 4
Winter 2020
Pages 1-7

  • Receive Date 14 February 2019
  • Revise Date 06 August 2019
  • Accept Date 02 September 2019