发明名称 |
Method and solution for forming anatase titanium dioxide, and titanium dioxide particles, colloidal dispersion and film |
摘要 |
A sol solution containing poly(titanic acid) and a planar heterocyclic ligand is provided. Titanium dioxide (TiO2) particles are formed by aging the sol solution at a temperature below about 140° C. The particles have multi-coordinated Ti-complexes comprising the heterocyclic ligand and can be substantially in the anatase phase. The heterocyclic ligands can be triazole, tetrazole, or thiadiazole. The sol solution may be prepared by aging a precursor solution. The precursor solution may contain the heterocyclic ligands and a precursor for poly(titanic acid). The precursor may be titanium alkoxide or titanium chloride. The sol solution may also contain at least one of an organic acid, a base, and a surfactant. The aged sol solution may form a colloidal dispersion of the TiO2 particles. A photo-catalytic and transparent film may be formed from the TiO2 particles by depositing a layer of the colloidal dispersion on a support.
|
申请公布号 |
US7534293(B2) |
申请公布日期 |
2009.05.19 |
申请号 |
US20060382447 |
申请日期 |
2006.05.09 |
申请人 |
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH |
发明人 |
HONG LIANG;LIU ZHAOLIN;JIANG HUIXIN;GUO BING |
分类号 |
C23C16/40 |
主分类号 |
C23C16/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|