Grafting of Multiwalled Carbon Nanotubes with Chicken Feather Keratin

Table 3

Value of area (Raman intensity) of peak bands G′, G, and D, intensity ratio, and average purity of multiwalled carbon nanotubes pristine, oxidized, and grafts.

Samples	G′	G	D	D/G	G′/G	G′/D	Average purity
MWNTs	52984.64	106422.15	96501.88	0.91	0.50	0.55	0.65
CK6512	184440.54	286488.59	211527.25	0.74	0.64	0.87	0.75
CK5512	489556.81	725777.39	493901.68	0.68	0.67	0.99	0.78
CK6511	385657.86	577481.65	339403.68	0.59	0.67	1.14	0.80
CK7511	96366.27	131668.86	81216.82	0.62	0.73	1.19	0.85
CK7512	38067.09	48136.99	29776.62	0.62	0.79	1.28	0.90
CK6513	238496.36	303557.99	181044.39	0.60	0.79	1.32	0.90
CK5513	240954.31	279484.06	193698.81	0.69	0.86	1.24	0.93
CK5511	275368.73	312627.18	232315.34	0.74	0.88	1.19	0.94
MWOHs	373647.98	431840.08	284336.83	0.66	0.87	1.31	0.95
CK7513	236904.60	270755.23	169146.64	0.62	0.87	1.40	0.97