Effect of pH on Green Synthesis of Reduced Graphene Oxide Using Lemon Extract and Application of Fe3O4/RGO nanocomposites for the removal of Pb (II) from aqueous solution

Maryam Ghasemi; Javad Azimi-Amin

Volume 7, Issue 1 , April 2022, , Pages 101-120


  Here, graphene oxide was synthesized and reduced by lemon extract (source of vitamin C) in an aqueous solution under different pH (3 and 10). The lemon extract was prepared using a solvent-free method. The proposed mechanisms for the reduction of GO may be due to the nucleophilic attack of oxygen anion ...  Read More

Laser Scribed Graphene from Oil Palm Lignin for Supercapacitor Applications

Narasimhaa Naidu Loganathan; Kabilashen Readdyi Munusamy; Veeradasan Perumal; Bothi Raja Pandian

Volume 6, Issue 4 , October 2021, , Pages 356-366


  This paper reports a facile carbonization method of a biopolymer to synthesize reduced graphene oxide with excellent electrochemical properties for use as a supercapacitor electrode. Oil palm lignin is used as the biopolymer-based graphene precursor, and a carbon dioxide laser is used to carbonize the ...  Read More