This invention declares the method to produce ag/titania sol.The suspended complex nanosized particles of anatase structure titania in aqueous solution were synthesized by a sol-gel method using titanium tetrachlorideas the precursors and nanosized silver particle were synthesized by silver nitrate Titanium tetrachloride is dissolved in aqueous solution of hydrogen chloride at low temperature.Ammonia solution is then added to form titanium tetrahydroxide.Hydrogen peroxide and silver nitrate are then added.The mixture is then heated between 60-100oC to form titania sol.本發明揭示一種奈米銀複合二氧化鈦溶膠光觸媒之製法,奈米銀複合二氧化鈦溶膠光觸媒可用於作為塗佈載體的原料。本發明揭示以四氯化鈦為原料,先將四氯化鈦在冰浴中(0-5oC)加入鹽酸水溶液,再加入氨水鹼性溶液製成氫氧化鈦,經過多次離心、水洗後,完全去除氯離子,再加入雙氧水,此時二氧化鈦的固體重量與水的比例為0.01%至3.0%,雙氧水與鈦的莫耳比為1比1至9比1之間,並加入金屬銀離子,此溶液在60至100℃間,加熱一段時間後,在氫氧化鈦膠體完全水解後,即可形成穩定透明的奈米銀複合二氧化鈦溶膠。S110~S118‧‧‧步驟
