Table 1 The C/O ratios and relative concentrations of functional groups determined by deconvolution of C1s XPS spectra for the initial GO, rGO-Br and rGO-Am.

From: From graphene oxide towards aminated graphene: facile synthesis, its structure and electronic properties

Component

Defects

C=C

C-C

C-OH & C-O-C

>C=O

O=C-OH

π-π*

C/O Ratio

Binding Energy (eV)

283.9

284.7

285.1

286.7

288.2

289.1

290.2

 

GO

0.039

0.407

0.041

0.466

0.040

0.007

<0.001

1.95

rGO_Br

<0.001

0.709

0.021

0.173

0.040

0.026

0.031

4.18

rGO_Am

<0.001

0.793

0.033

0.062

0.039

0.012

0.042

8.85

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