Preparation of ZnO/TiO2 Nanometer Powders by Homogeneous Precipitation

摘要：

The ZnO/TiO2 nanometer Powders were producing by Homogeneous Precipitation using Na2CO3 as precipitator, the process and parameters were also studied in this paper. The result shows the process parameters for producing ZnO/TiO2 Nano-meter Powders are that the pH value is from 2.45 to 2.55, the mol proportion of ZnO and TiO2 is 1:1～1:3, the temperature of calcining is 500℃,and the time of calcining is 3-4h. The results also show that the ZnO and TiO2 of composite nanometer powders not mix together simply, but connect together by chemical bond, the size is between 20 to 40nm. The TG-DTA curve shows that the absorptivity for ultraviolet radiation of ZnO/TiO2 nanometer powders is much more than the single nanometer ZnO or nanometer TiO2, and it also can fetch up the limitation of shielding ultraviolet radiation for some wave band of single nanometer.

关键词： Homogeneous Precipitation ZnO/TiO2 nanometer powders UV absorption

作者: 邹敏 王琪琳

作者单位: 攀枝花学院生化学院,攀枝花 617000 攀枝花学院生化学院,攀枝花 617000;四川大学材料科学与工程学院,成都 610064

会议类型: 国际会议

会议名称: 第六届中国国际纳米科技研讨会

会议地点: 成都

会议语种:英文

在线出版日期: 2007-11-19（万方平台首次上网日期，不代表论文的发表时间）