采用均相沉淀法在95℃、常压条件下制备了金红石/锐钛混晶型纳米TiO2混悬液.研究了pH对产物晶型和晶化时间对混悬液光催化能力的影响,以及混悬液的贮存稳定性.用X射线衍射仪(XRD)测试了混晶的晶相组成;用透射电子显微镜(TEM)分析了混晶的形貌;用激光粒度仪测定了混晶的粒径.结果表明,加盐酸至pH=0.5,晶化5h制得的混悬液光催化活性良好,贮存稳定.混晶中含锐钛型72.7％,金红石型27.3％,形貌为15nm×5nm左右的长条形.
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