▎ 摘　　要

NOVELTY - A graphene/gold surface-enhanced Raman spectrum substrate manufacturing method involves preparing a graphene oxide aqueous solution by adding phosphorus flake graphite, sulfuric acid, and potassium permanganate in conical bottle, and adding deionized water, and hydrogen peroxide and cooling. Hydrogen tetrachloroaurate hydrate aqueous solution, sodium citrate aqueous solution and a silver nitrate solution are prepared. Graphene/gold composite material and graphene/gold composite material suspension are prepared. The treated substrate in suspension is erected to obtain finished product. USE - Method for manufacturing graphene/gold surface-enhanced Raman spectrum substrate that is utilized in chemical industry. ADVANTAGE - The method enables manufacturing the Raman spectrum substrate with improved repeated utilization of gold nanoparticles, so that the cost is reduced, and the substrate enhances the surface Raman spectrum. DETAILED DESCRIPTION - A graphene/gold surface-enhanced Raman spectrum substrate manufacturing method involves preparing a graphene oxide aqueous solution by adding 2 g phosphorus flake graphite, 55-65 ml sulfuric acid, and 8-12 g potassium permanganate in a conical bottle, and kept in water bath at 35 degrees C for 20-24 hours, and adding 300 ml deionized water, and 30-35 ml hydrogen peroxide and cooling. Hydrogen tetrachloroaurate hydrate aqueous solution, sodium citrate aqueous solution and silver nitrate solution are prepared. Graphene/gold composite material and graphene/gold composite material suspension are prepared. The treated substrate in the graphene/gold composite material suspension is erected to obtain the graphene/gold surface-enhanced Raman spectrum substrate after reaction is completed.