Type of bonds	Band Position (eV)		Non-Modified CNCs %total carbon	Modified CNCs %total carbon
Type of bonds	Non-Modified CNCs	Modified CNCs	Non-Modified CNCs %total carbon	Modified CNCs %total carbon
C-C, C-H	285	285	13.3	51.6
C-O	286.7	286.6	67.6	34.5
O-C-O	288.2	288.3	18.2	9.3
COO	289.6	289.3	0.9	4.7