以硝酸锌、尿素为主要原料,采用均相沉淀法在Al2O3粉体颗粒表面制备了纳米ZnO改性涂层,涂层由5～10 nm的ZnO颗粒组成.宏观电泳测试和Zeta电位分析表明,经ZnO改性前后Al2O3颗粒在水溶液中的表面荷电性能发生了明显的改变,未改性Al2O3的Zeta电位等电点为pH=6.3,而ZnO涂层改性Al2O3颗粒在pH=2.2～12时均显示出荷负电性能.采用XRD、EDS能谱及拉曼光谱等分析测试并结合纳米ZnO的表面晶体结构特征,对ZnO改性Al2O3颗粒表面的负电荷来源进行了探讨.
参考文献
| [1] | Burggraaf A J;Cot L.Fundamentals of Inorganic Membrane Science and Technology[M].Amsterdam:Elsevier Science,1996 |
| [2] | Xu L;Li W P;Lu S Q et al.Treating Dyeing Waste Water by Ceramic Membrane in Crossflow Microfiltration[J].DESALINATION,2002,149:190-203. |
| [3] | Zhang Haimin;Quan Xie;Chen Shuo et al.Zirconia and Titania Composite Membranes for Liquid Phase Scparation:Preparation and Characterization[J].Desalination,2006,190:172-180. |
| [4] | Palacio L.;Calvo JI.;Kherif G.;Larbot A.;Hernandez A.;Pradanos P. .Fouling, structure and charges of a composite inorganic microfiltration membrane.[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,1998(2/3):291-299. |
| [5] | Toshinlri Tsuru;Daisuke Hironaka;Tomohisa Yoshioka et al.Titania Membranes for Liquid Phase Seperation:Effect of Surface Charge on Flux[J].Separation and Purification Technology,2001,25:307-314. |
| [6] | 韦奇;王大伟;张术根 .无机陶瓷膜表面改性技术研究进展[J].功能材料,1999,30(06):601-603. |
| [7] | 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-chemical Treatment[J].Separation and Purification Technology,2001,25:513. |
| [8] | 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. |
| [9] | Shi JZ.;Cao QX.;Wei YG.;Huang YX. .ZnO varistor manufactured by composite nano-additives[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2003(1/3):344-347. |
| [10] | 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. |
| [11] | Elzo D.;Middelink E.;Gekas V.;Huisman I. .Charge effects on inorganic membrane performance in a cross-flow microfiltration process[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,1998(2/3):145-159. |
| [12] | 徐南平;刑卫红;赵宜江.无机分离膜技术与应用[M].北京:化学工业出版社,2003:31-32. |
| [13] | 许珂敬,田贵山,杨新春,张建阔.氧化铝粉末胶体悬浮液的电动性能的研究[J].中国陶瓷工业,2002(05):22-25. |
| [14] | Emmanuel Topoglidis;James R.Durrant;James R.Durrant .Immobilisation and bioelectrochemisry of proteins on nanoporous TiO_2 and ZnO films[J].Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry,2001(1/2):20-27. |
| [15] | 陆佩文.无机材料科学基础[M].武汉:武汉工业大学出版社,1996:107-108. |
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