以钛酸丁酯为原料,正负表面活性剂自组装形成的囊泡为软模板,制备了二氧化钛纳米晶.采用XRD,TEM,TG-DSC,SEM和EDS,XPS等对二氧化钛纳米晶的微观结构进行表征.结果表明:二氧化钛纳米晶在囊泡双层膜内部,双层膜之间和外部均有析出;150℃,450℃,500℃,750℃,830℃焙烧得到锐钛矿相和金红石相二氧化钛纳米晶,并且随温度升高,锐钛矿相二氧化钛含量先增后减,500℃焙烧产物锐钛矿相二氧化钛含量最高,950℃焙烧产物只含有金红石相二氧化钛,二氧化钛纳米粒子呈不规则五边形,尺寸在80～110 nm之间.750℃焙烧产物对活性艳红具有较好的光催化活性.
参考文献
| [1] | 葛增娴,刘俊,魏爱香,赵旺.单晶TiO2纳米线束阵列的水热合成及场发射性能研究[J].人工晶体学报,2011(02):365-369. |
| [2] | Tarek A. Kandiel;Armin Feldhoff;Lars Robben .Tailored Titanium Dioxide Nanomaterials: Anatase Nanoparticles and Brookite Nanorods as Highly Active Photocatalysts[J].Chemistry of Materials: A Publication of the American Chemistry Society,2010(6):2050-2060. |
| [3] | Barbara Grzmil;Marta Glen;Bogumil Kic .Preparation and Characterization of Single-Modified TiO2 for Pigmentary Applications[J].Industrial & Engineering Chemistry Research,2011(11):6535-6542. |
| [4] | Blasco, E.;Serrano, J.L.;Pi?ol, M.;Oriol, L. .Light responsive vesicles based on linear-dendritic block copolymers using azobenzene-aliphatic codendrons[J].Macromolecules,2013(15):5951-5960. |
| [5] | Alex T. Kuvarega;Rui W. M. Krause;Bhekie B. Mamba .Nitrogen/Palladium-Codoped TiO2 for Efficient Visible Light Photocatalytic Dye Degradation[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2011(45):22110-22120. |
| [6] | Yongfeng Zhou;Deyue Yan .Real-Time Membrane Fusion of Giant Polymer Vesicles[J].Journal of the American Chemical Society,2005(30):10468-10469. |
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