▎ 摘　　要

NOVELTY - Preparing graphene oxide-containing silicon oxide comprises e.g. (i) adding sodium nitrate, sodium borate and potassium permanganate to concentrated sulfuric acid, (ii) adding expanded graphite during violent shaking, (iii) reacting mixture in an ice bath and transferring to an oil bath, (iv) adding ultrapure water to mixture, heating and oxidizing the expanded graphite in the solution, (v) cooling and adding hydrogen peroxide to obtain clear bubbles, (vi) centrifuging the mixture and washing with hydrochloric acid, (vii) washing again with ultrapure water to removing the excess acid, (viii) drying material for 6 hours to obtain graphene oxide, (ix) uniformly dispersing ethyl silicate and vinyltriethoxysilane in anhydrous ethanol and adding resultant graphene oxide, (x) stirring and adding aqueous ammonia, (xi) adding aqueous ammonia, (xii) stirring to ensure complete reaction, (xiii) centrifuging product and washing with ultrapure water and (xiv) drying in vacuum drying oven. USE - The graphene oxide-containing silicon oxide is useful in aviation, aerospace, energy car, smart phones, robots and other fields (claimed). DETAILED DESCRIPTION - Preparing graphene oxide-containing silicon oxide comprises (i) adding 1 g sodium nitrate, 2 g sodium borate and 6 g potassium permanganate to 46 ml of concentrated sulfuric acid with a concentration of 98 wt.%, (ii) adding 12 g expanded graphite during violent shaking, (iii) reacting mixture in an ice bath at 4 degrees C for 24 hours, then transferring to an oil bath at 35 degrees C for 40 minutes, (iv) adding 92 ml ultrapure water to mixture, heating to 98 degrees C for 15 minutes and oxidizing the expanded graphite in the solution, (v) cooling to 60 degrees C and adding 30% hydrogen peroxide to obtain clear bubbles, (vi) centrifuging the mixture and washing with 5 wt.% hydrochloric acid, (vii) washing again with ultrapure water to removing the excess acid, (viii) drying the material at 60 degrees C for 6 hours to obtain graphene oxide, (ix) uniformly dispersing 1 g ethyl silicate and 2 g vinyltriethoxysilane in 25 ml anhydrous ethanol and adding 2 g graphene oxide obtained in step (viii), (x) stirring at a speed of 1000 revolutions/minute at room temperature and adding 0.1 ml aqueous ammonia after 1 hour, (xi) stirring for 5 minutes, adding 3 ml aqueous ammonia, (xii) stirring at room temperature for 2 hours to ensure complete reaction, (xiii) centrifuging the product at 2000 revolutions/minute and washing with ultrapure water to remove unreacted raw materials and impurities, and (xiv) drying in vacuum drying oven at 60 degrees C to obtain final product.