Table 2 The crystal structure parameters of GQDs, C3N4, and GQDs/g-C3N4.

From: Design and implementation of humidity sensor based on carbon nitride modified with graphene quantum dots

Sample name

(hkl)

d-spacing

βD (°)

D (Scherrer eq.) (nm)

δ (nm2)

ε

GQDs

(111)

8.06

0.0268

5.2

0.037221

0.069432

g-C3N4

(002)

3.24

0.0283

–

0.039455

0.028885

GQDs/C3N4

(002)

3.25

0.0445

–

0.084571

0.023732

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