▎ 摘　　要

NOVELTY - Nanomaterial composite includes a combination of hexagonal network of reduced oxidized graphene and carbohydrates. The oxidized graphene and hydrates of carbon are reduced in a ratio of 1:1. USE - Nanomaterial composite used as coatings in different substrates such as wood, ceramics, fabrics and paper. ADVANTAGE - The nanomaterial composite provides excellent flame retarding properties to the substrates, and prevents ash formation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene-based carbohydrate-based nanomaterials composite, which involves: (A) mixing 5 grams graphite, 2.5 grams sodium nitrate and 30% sulfuric acid solution in a cold bath at 2 degrees C for one hour; (B) stirring the obtained mixture for 2 hours to homogenize solution to obtain dark brown graphene oxide; (C) washing with acid solution; (D) carrying out subsequent electrochemical reduction in an acidic medium for 10 minutes; (E) digesting sugar agro-industrial fibrous residues in a solution of 30% sulfuric acid under constant agitation for 1 hour at 150 degrees C to obtain thick black solution; and (F) mixing obtained electrochemically reduced oxidized graphene with the obtained carbohydrates in a ratio of 1:1 at 80 degrees C to give the graphene-based carbohydrate-based nanomaterials. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation depicting thermogravimetric analysis of reduced graphene oxide at different potentials.