以钛粉为原料,加入适量的硬脂酸锌、无水乙醇和二甲基甲酰胺制钛粉浆,通过浸涂法制备出具有纳米级孔径的多孔钛膜.探讨了硬脂酸锌含量对膜孔隙特征及渗透分离特性的影响.实验结果显示,烧结出的多孔膜中仅含钛元素,而且膜的结构完整,具有孔道连通的三维结构.膜的厚度、孔径大小及分布随Ti粉浆中硬脂酸锌含量的增加而减小,但膜的分离能力却随硬脂酸锌的增加而增强.当硬脂酸锌的质量分数大于80%时,膜的最可几孔径小于50 nm,而且硬脂酸锌的大幅度增加不会导致纯水通量的大幅度减少,但对分子量大于156 000的物质的截留率却大幅度提高,故该膜可作为超滤膜使用.
参考文献
| [1] | Rho S;Jahng D;Lim JH;Choi J;Chang JH;Lee SC;Kim KJ .Electrochemical DNA biosensors based on thin gold films sputtered on capacitive nanoporous niobium oxide[J].Biosensors & Bioelectronics: The International Journal for the Professional Involved with Research, Technology and Applications of Biosensers and Related Devices,2008(6):852-856. |
| [2] | La Flamme KE;Popat KC;Leoni L;Markiewicz E;La Tempa TJ;Roman BB;Grimes CA;Desai TA .Biocompatibility of nanoporous alumina membranes for immunoisolation[J].Biomaterials,2007(16):2638-2645. |
| [3] | 汪强兵,汤慧萍,奚正平.多孔金属膜研究进展[J].材料导报,2004(06):26-28. |
| [4] | 刘培生,李铁藩,傅超,吕明.多孔金属材料的应用[J].功能材料,2001(01):12-15. |
| [5] | Zou CM;Zhang E;Li MW;Zeng SY .Preparation, microstructure and mechanical properties of porous titanium sintered by Ti fibres[J].Journal of Materials Science. Materials in Medicine,2008(1):401-405. |
| [6] | Parida S;Kramer D;Volkert CA;Rosner H;Erlebacher J;Weissmuller J .Volume change during the formation of nanoporous gold by dealloying[J].Physical review letters,2006(3):5504-1-5504-4-0. |
| [7] | 刘培生,黄林国.多孔金属材料制备方法[J].功能材料,2002(01):5-8,11. |
| [8] | J. Jayaraj;B. J. Park;D. H. Kim .Nanometer-sized porous Ti-based metallic glass[J].Scripta materialia,2006(11):1063-1066. |
| [9] | 何余生,李忠,奚红霞,郭建光,夏启斌.气固吸附等温线的研究进展[J].离子交换与吸附,2004(04):376-384. |
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