2 results about "GRAPE SKIN EXTRACT" patented technology

The invention discloses a method for preparing cuprous oxide from grape skin and application of the cuprous oxide in photocatalytic synthesis of hydrogen peroxide, and belongs to the field of green chemistry and photocatalytic synthesis of high-value chemicals. According to the method disclosed by the invention, the biomass waste grape skin is taken as a raw material, rich resveratrol and the like in the raw material are extracted as a green reducing agent, a traditional cuprous oxide synthesis process is innovated, and an environment-friendly and sustainable nano cuprous oxide preparation strategy is developed. The method comprises the following steps: drying fresh grape skin, grinding into powder, adding deionized water, fully heating and stirring, standing, cooling to room temperature, and reserving clear liquid to obtain a grape skin extracting solution; and sequentially adding copper sulfate pentahydrate, sodium hydroxide and the grape skin extracting solution into deionized water, heating and stirring until the reaction is finished, cooling to room temperature, washing and drying to obtain cuprous oxide solid powder.