中文摘要：

以正丙醇锆为前驱体，通过溶胶一凝胶法制备出稳定的ZrO2聚合溶胶，采用浸浆法在平均孔径为5～6nm的γ-Al2O3中孔膜上制备出Zr02纳滤膜。利用静态腐蚀方法，考察了ZrO2粉体及ZrO2纳滤膜的耐酸碱腐蚀性能。结果表明：350℃和400℃焙烧的Zr02粉体在溶液pH=1～13范围内稳定；400℃烧成的Zr02纳滤膜可在溶液pH=2～12范围内保持稳定。350℃烧成的Zr02纳滤膜经过pH=12的NaOH溶液和pH=2的HNO3溶液浸泡后，ZrO2纳滤膜的截留性能显著下降，这可能是由于ZrO2分离层的无定型相和载体γ-Al2O3结构不稳定共同作用的结果。

英文摘要：

A stable ZrO2 polymeric sol was synthesized through a sol-gel method using zirconium n-propoxide as precursor. Disk α-Al2O3 supported mesoporous γ-Al2O3 membrane with an average pore size of 5-5 nm was used as support for nanofiltration membranes deposition. Defect-free ZrO2 nanofiltration membranes superimposed on these supports were fabricated via dip-coating method followed by drying and calcination. The chemical stabilities of supported ZrO2 nanofiltration membranes were detemined by static corrosion tests. Results showed that unsupported ZrO2 membranes calcined at 350℃ and 400℃ were found to be chemically stable in a pH window of 1-13. Supported ZrO2 nanofiltration membrane calcined at 400℃ was found to be chemically stable in a window of pH = 2-12. While the membrane calcined at 350℃ showed reduced PEG-rentention properties after immersed in pH= 12 and 2 solutions. The result can be attributed to the amorphous phase presented in zirconia separation layer as well as the chemical instability of the γ-Al2O3 layer beneath.