“…3,4,[6][7][8][9] Different techniques have been made to modify through grafting functional groups on the CB surface including, oxidation, 4,7,10-14 using surfactants, 10,15 polymer grafting, 11 halogenation, 11 thiolation, 11 sulfonation, 11 plasma treatment, 6,16 thermal treatment, 6,17 and using silane coupling agents. 4,7,[11][12][13][14] The surface oxidation methods widely used to introduce oxygen-containing groups (such as hydroxyl, ketone, phenol, ether, and carboxylic acid) on the surface of CB to prepare it for subsequent modification by covalent, electrostatic, and hydrogen bonding interactions, and/or to reach better dispersion in the polar media. 3,4,[12][13][14][18][19][20][21] The commonly involved oxidizing reagents are nitric acid, [6][7][8]10,14,[22][23][24][25][26] the mixture of sulfuric and nitric acid, 4,13,20,21,…”