exploring heat transfer performance with graphitic carbon nitride nanoparticles
V. Gokul (Author), Mohanachandran Nair Sindhu Swapna (Author), Sankaranarayana Iyer Sankararaman (Author)

Abstract

Abstract The work explores the heat transfer capabilities of semiconducting graphitic carbon nitride (g-C3N4) nanofluids. Also, it presents a sustainable and eco-friendly method for synthesizing g-C3N4 nanoparticles using commercially available rice flour as a natural carbon precursor through hydrothermal treatment. The synthesized sample subjected to various characterizations, including analysis of their structure, morphology, thermal properties, and optical properties. The optical bandgap (2.66 eV) is deduced through Tauc plot analysis and reveals the semiconducting nature of the sample. The formation of g-C3N4 is confirmed by various spectroscopic techniques, including X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), and Raman spectroscopy. Thermogravimetric analysis (TGA) demonstrates the nanoparticles’ excellent thermal stability up to 550 °C, indicating potential applications in heat transfer fluids. The investigation of concentration-dependent thermal diffusivity variation using the sensitive mode mismatched dual beam thermal lens technique highlights the potential of g-C3N4 semiconductor nanofluid as an organic and metal-free additive in industry-demanding coolant applications.

Keywords

graphitic carbon nitride;hydrothermal synthesis;rice flour;thermal lens spectroscopy;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UNG - University of Nova Gorica
UDC: 53
COBISS: 179645955 Link will open in a new window
ISSN: 0932-0784
Views: 39
Downloads: 0
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Other data

Secondary language: Slovenian
Secondary keywords: graphitic carbon nitride;hydrothermal synthesis;rice flour;thermal lens spectroscopy;
Pages: str. 1163–1171
Volume: ǂVol. ǂ78
Issue: ǂissue ǂ12
Chronology: 2023
DOI: 10.1515/zna-2023-0192
ID: 22289646