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1 article(s) from Kim, Haekyoung

Reduced graphene oxide supported C₃N₄ nanoflakes and quantum dots as metal-free catalysts for visible light assisted CO₂ reduction

Md Rakibuddin and
Haekyoung Kim

Beilstein J. Nanotechnol. 2019, 10, 448–458, doi:10.3762/bjnano.10.44

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Figure 1: Schematic representation of the preparation of C₃N₄ nanoflakes (NFs), quantum dots (QDs) and the rG...

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Figure 2: Powder X-ray diffraction patterns of the synthesized rGO-supported C₃N₄ (GCN) hybrid materials.

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Figure 3: X-ray photoelectron spectroscopy analysis of the prepared GCN-5: a) survey spectrum, and high-resol...

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Figure 4: Fourier transform infrared spectra of the prepared g-C₃N₄, CN nanoflakes and quantum dots, and GCN-...

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Figure 5: TEM images of the a) CN-5, b) GCN-5, c) CN-10, d) GCN-10, e) CN-20 and GCN-20 nanoflakes and quantu...

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Figure 6: Particle size distribution of the synthesized CN nanoflakes and quantum dots.

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Figure 7: TEM image of CN nanoflake and quantum dot samples under heating at 190 °C for 5 h (a,b), 170 °C for...

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Figure 8: Field emission scanning electron microscopy images of the a) g-C₃N₄ nanosheet, b) after acid treatm...

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Figure 9: High-resolution transmission electron microscopy images of the GCN-5 quantum dots.

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Figure 10: UV–vis absorption spectra of the photogenerated HCHO with Nash reagent (a–c), and (d) production ra...

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Figure 11: Apparent yield of HCHO in the presence of the various photocatalysts.

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Figure 12: Photostability of the GCN-5 sample against the production of HCHO.

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Figure 13: Possible photoreduction mechanism of CO₂ to HCHO in the presence of the GCN-5 catalyst sample under...

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Published 13 Feb 2019

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Reduced graphene oxide supported C3N4 nanoflakes and quantum dots as metal-free catalysts for visible light assisted CO2 reduction

Reduced graphene oxide supported C₃N₄ nanoflakes and quantum dots as metal-free catalysts for visible light assisted CO₂ reduction