Effect of the Acidity on the Morphology and Composition of Nano-TiO2/ Cu Particles
Nano-TiO2/micro-Cu composite particles were prepared by peptization method using Ti(OBu)4 and SnC122H2O as the raw materials. The effect of the content of HN03 on the morphology and composition was investigated. The results showed that when the mole ratio of HNO3 and Ti(OBu)4 was 0.5:1,about lOOnm TiO2 of amorphous phase grew on the surface of Cu forming strawberry like particles. When the mole ratio of HNO3 and Ti(OBu)4 was l:l,Cu powders were coated with TiO2 crystals of several nanometers in size,meanwhile particles of several microns in size was absorbed on the Cu surface,which can be easily removed by water cleaning. The possible mechanism was discussed in the end.
composite particles nano-TiO2 micro-Cu acidity.
Shiguo Du Jun Yan Bin Wang Haiping Cui
ShiJiaZhuang Mechanical Engineering College,ShijiaZhuang 050003,China
国际会议
Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)
南昌
英文
45-48
2010-04-28（万方平台首次上网日期，不代表论文的发表时间）