▎ 摘　　要

NOVELTY - Preparing loaded silver/titania composite glass fiber comprises e.g. (i) crushing silicon dioxide, sodium oxide, stirring and mixing, then placing in corundum crucible, melting, molding, and annealing, (ii) preheating the glass fiber, (iii) ultrasonic stirring graphene quantum dot dispersion solution, silver nitrate solution, trisodium citrate dihydrate, graphene quantum dot dispersion solution, and drying, (iv) ultrasonic stirring graphene dispersion solution, glass fiber prepared in the step (iii), and drying, and (v) adding titanium, reacting, aging and then drying to obtain final product. USE - The method is useful for preparing loaded silver/titania composite glass fiber (claimed). ADVANTAGE - The method can greatly improves strength and toughness of the material; and the fiber has good antibacterial performance, simple preparation method, low cost and good practicability. DETAILED DESCRIPTION - Preparing loaded silver/titania composite glass fiber comprises (i) crushing 50-55 wt. wt.% silicon dioxide, 10-15 wt. wt.% boron trioxide, 5-10 wt.% sodium oxide, 10-15 wt.% aluminum oxide, and 15-20 wt.% calcium oxide, stirring and mixing, then placing in 400 ml corundum crucible, melting with silicon molybdenum rod resistance furnace at 1370 degrees C, refining the melted material at 1450 plus minus 10 degrees C, baking at 1200 degrees C, casting and molding, placing into a muffle furnace, annealing at 500 degrees C to obtain glass, heating the obtained glass to a drawing temperature of 1050 degrees C to obtain glass fiber, (ii) preheating the glass fiber, (iii) taking graphene quantum dots to prepare dispersion solution having concentration of 0.1-1 mg/ml, water, acetone or dimethyl sulfoxide as solvent, then ultrasonic stirring 50-60 ml graphene quantum dot dispersion solution, then adding into 0.01-0.03 mol/l concentration of silver nitrate solution, controlling the reaction temperature to 45-60 degrees C, dropwise adding 0.1-0.8 mol/ concentration of trisodium citrate dihydrate, continuing to ultrasonic stirring for 60-120 minutes, then dropwise adding 10-20 ml graphene quantum dot dispersion solution, then adding pre-treated glass fibers, ultrasonic stirring at speed of halved, and stirring for 30-60 minutes, removing the glass fiber and cleaning, drying, and then allowing to stand, where the volume ratio of graphene quantum dot dispersion, silver nitrate solution, and trisodium citrate dihydrate is 3-4:2-3:1-2, (iv) taking the porous graphene to prepare graphene dispersion solution with concentration of 0.2-0.8 mg/ml, water, acetone or dimethyl sulfoxide as solvent, then ultrasonic stirring 80-100 ml graphene dispersion solution, adding the glass fiber prepared in the step (iii), stirring for 10 minutes, and then moving into the Teflon reactor, keeping at 80-120 degrees C for 15-30 minutes, removing the glass fiber and cleaning, drying, and then allowing to stand, and (v) adding 0.1-0.3 M titanium source into 1 M sulfuric acid solution, uniformly mixing, adding the glass fiber obtained in the step (v), raising the temperature to 110 degrees C, reacting for 3-5 hours, adjusting pH to 7 using concentration of ammonia solution, aging for 12 hours, washing, and then drying to obtain final product. An INDEPENDENT CLAIM is also included for loaded silver/titania composite glass fiber is prepared by above mentioned method.