以Zn(NO3)2和尿素为主要原料,采用均相沉淀法对Al2O3微滤膜进行了纳米ZnO修饰改性,研究了改性溶液中Zn(NO3)2浓度和改性次数对Al2O3微滤膜孔径分布、孔隙率和纯水渗透通量的影响.结果表明:Zn(NO3)2浓度增大和改性次数增加时,膜孔径和孔隙率明显减小,孔径分布变窄.当Zn(NO3)2浓度为0.3 mol/L并经2次改性后,可在Al2O3微滤膜孔表面形成致密的纳米ZnO改性涂层,改性膜平均孔径约为0.80 pn且孔径分布最窄,在膜平均孔径减小25.2%的情况下,水通量可提高49.3%.
参考文献
| [1] | Haimin Zhang;Xie Quan;Shuo Chen;Huimin Zhao;Yazhi Zhao .Zirconia and titania composite membranes for liquid phase separation: preparation and characterization[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2006(1/3):172-180. |
| [2] | Zhou J E;Zhang X Z;Wang Y Q et al.Electrokinetic Characterization of the A12O3 Ceramic MF Membrane by Streaming PotentialMeasurements[J].Desalination,2009,235(01):02-109. |
| [3] | 胡学兵,周健儿,汪永清,张小珍.平均孔径与改性氧化物对α-Al2O3微滤膜油水分离效率的影响[J].硅酸盐学报,2010(10):1900-1904. |
| [4] | 周健儿,胡学兵,汪永清,梁健,张小珍,刘阳.α-Al2O3微滤膜的改性研究[J].陶瓷学报,2009(02):160-165. |
| [5] | Bouguen A;Chaufer B;Rabiller-Baudry M et al.Enhanced Retention of Neutral Solute and Charged Solute with NF Inorganic Membrane by Chemical Grafting and Physico-chemiaal Treatment[J].Separation and Purification Technology,2001,25(02):513-517. |
| [6] | Belin S.;Santos LRB.;Briois V.;Lusvardi A.;Santilli CV.;Pulcinelli SH.;Chartier T.;Larbot A. .Preparation of ceramic membranes from surface modified tin oxide nanoparticles[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2003(1/3):195-206. |
| [7] | 周健儿,吴建青,汪永清,江伟辉,马光华,操瑞北.纳米ZnO涂层对Al2O3微滤膜的改性[J].硅酸盐学报,2004(12):1464-1469. |
| [8] | 周健儿,胡学兵,于云,胡行方,汪永清,张小珍.纳米ZnO涂层对不同孔径α-Al2O3微滤膜的修饰作用[J].无机材料学报,2007(06):1216-1220. |
| [9] | 周健儿,吴建青,汪永清,梁健,张小珍,操瑞北.纳米TiO2涂层对Al2O3微滤膜的改性研究[J].无机材料学报,2006(03):725-730. |
| [10] | 周健儿,胡学兵,于云,胡行方,胡飞,汪永清,张小珍.SnO2纳米晶粒对α-Al2O3微滤膜的改性作用[J].硅酸盐学报,2007(11):1444-1447. |
| [11] | 周健儿,胡学兵,于云,胡行方,汪永清,张小珍.氧化物纳米涂层显微结构对α-Al2O3微滤膜水通量的影响[J].人工晶体学报,2007(04):889-893. |
| [12] | 张立得;牟季美.纳米材料与纳米结构[M].北京:科学出版社,2001:486-487. |
| [13] | Burggraaf A J;Cot L.Fundamentals of Inorganic Membrane Science and Technology[M].Amsterdam:Elsevier Science,1996 |
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