钨杂二氧化钛负载棉织物的微波法制备及光催化性能

采用(NH4)2TiF6为原料，钨酸钠和钨酸铵作为钨源在微波加热的条件下反应生成钨掺杂的锐钛矿W-TiO2，并采用微波辅助法原位处理到棉织物上从而赋予棉织物光催化性能。讨论了(NH4)2TiF6和H3BO3的摩尔比、微波加热温度、钨掺杂比等因素对TiO2晶型的影响，结果表明：(NH4)2TiF6和H3BO3以不同比例混合、微波加热温度、钨掺杂对TiO2晶型没有影响。研究了前驱体浓度、钨掺杂量、微波反应时间及温度对织物光催化性能的影响。制备具有光催化性能的W-TiO2/棉织物的最优工艺是：前驱体浓度为0.05mol/L，95℃微波加热45min，钨的最佳掺杂比例是5%。

Microwave-assisted low temperature in-situ synthesis and coating ofTungsten-doped TiO2 ontocotton fabric and photocatalytic peerformance of coated fabric

Tungsten-doped TiO2 coated cotton fabric was successfully in prepared with (NH4)2TiF6, H3BO3 and Na2WO4 (or (NH4)2WO4) as raw materials by microwave-assisted method. The influence of the molar ratio of (NH4)2TiF6 and H3BO3, microwave heating temperature and tungsten doping ratio on the crystal form of TiO2 were studied. The result shows that the ratio of (NH4)2TiF6 and H3BO3, microwave heating temperature, tungsten doping ratio have little influence on the crystal form of TiO2. The effects of the concentration of the precursor, tungsten doping ratio, microwave reaction time and temperature on the photocatalytic performance of coated fabric were also investigated. The best processing condition was the doping ratio of 5% tungsten, 0.05mol/L (NH4)2TiF6 and microwave heating at 95°C for 45min.