Table 2 Crystalline parameters (particle size, particle thickness, band gap, dislocation density, and crystallinity) of the studied samples.

From: Graphitic carbon nitride–reduced graphene oxide (g-C3N4@r-GO) nanocomposites for photocatalytic hydrogen production by water splitting and high-performance electrochemical supercapacitors

Sample

Particle size

(width×length)/

(FE-SEM)

Particle

thickness

/ nm (XRD)

Band gap

/ eV

Dislocation

density (δ)

Crystallinity

/ %

GO

5 nm x 36-43 μm

4.89

2.73

0.0908

85.92

g- C3N4

1.5 μm x 2 μm

5.06

2.70

0.0299

94.39

g- C3N4-GO

12 μm x 26 μm

5.64

2.65 & 4.27

0.1908

90.18

g- C3N4@r-GO(AA)

10µmx22-31 μm

4.58

2.14 & 4.04

0.3091

89.75

g-C3N4@r-GO(NaBH4)

1–2 μm x 3–7 μm

5.44

2.30 & 4.42

0.2182

91.11

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