| 1. | The reason of the increasing photo - activity was analyzed 实验中发现共掺杂薄膜的亲水性能不佳。 |
| 2. | The results show the optical absorption by vanadium ions doped tio2 films . the presence of vanadium and silica in tio2 greatly enhanced their photo - activity 而钒掺杂使tio _ 2薄膜亲水性能显著提高,甚至在太阳光照下就具有亲水性。 |
| 3. | Chitosan - nylon composite membrane with two active group ( - nh2 and - oh ) had a hydrophilic surface and good blood compatibility , so it can be widely used in affinity separation 其中尼龙壳聚糖复合膜具有胺基和羟基两种活性基团、良好的亲水性能、较佳的血液和生物相容性,可广泛应用于亲和微滤。 |
| 4. | The film ' s property had a great change after h2 microwave plasma treatment in certain conditions , especially the uv - vis absorbtion , the hydrophilicty and the photocatalytic activty have a great improvement 通过适当条件的h _ 2微波等离子体处理后薄膜特性发生较大变化,其紫外?可见吸光能力明显增强,光致亲水性能和光催化活性都有较大提高。 |
| 5. | In this thesis , ti02 series thin films which have different structure and different composition were prepared by magnetron sputtering and sol - gel method . the structures and properties of these films were researched , and the product technologies of super - hydrophilicity were also preliminary studied . the results are as follows : 1 表面桥氧比羟基氧对薄膜亲水性能的影响更大,而对光催化活性的影响则是羟基氧更大; ( 3 ) tio _ 2 - sno _ 2的复合膜、叠层膜及复合叠层膜的光催化活性及亲水性均优于纯tio _ 2薄膜。 |
| 6. | Xps showed that there were much chemical absorbing water on the ti _ ( 2 ) film surface which mainly existed in form of - oh , and the contents of - oh was increasing with the annealing temperature . hydrophilic property became better with the annealing temperature ; the essential relation between the changing of contact angle and light - induced - electrons and light - induced - cavities was studied in details . the photocatalysis of samples without heat treatment was very bad , but that of samples after heat treatment was much better Xps的分析表明:试样的表面含有大量的化学吸附水,主要以羟基的形式存在,随着热处理温度的升高,吸附羟基的含量在增加;亲水性能测试表明:随着氧气分压的变化,其亲水性能变化不大,随着热处理温度的增加,试样的亲水性能在变好,并从理论上解释了亲水性能光照前后变化和光生电子?空穴对之间的本质关系。 |
| 7. | The influence of the transitional metal ion , fe3 + and zn2 + , was discussed . fe dopent can be easily put into the matrix of tio2 and hardly inflects the crystal structure or surface morphology . it can decrease the band gap of the thin film effectively so that it will improve the hydrophilicity of the thin film Fe ~ ( 3 + )掺杂离子的引入能够有效降低薄膜的光学能隙,提高薄膜的光响应范围,从而使薄膜的亲水性能提高;而zn ~ ( 2 + )掺杂对薄浙往大’于倾卜、浏亿论文膜的亲水性能没有改善。 |
| 8. | The contact angle for water of the film which prepared according to above conditions is 4 ? ( 2 ) b plus voltage is 1 . 2kv ; sputtering time is 80min ; the target parameters are : 100 % anatase tio2 , the thickness is 6 . 5mm , the diameter is 53 . 5mm , the quality is 24 . 99g and the density is 1 . 71g / cm3 ; anode current is imax . the constant of reaction kinetics of the film which prepared according to above conditions for degrading methyl orange is 0 . 0192 Fe20 ;的摩尔含量为0 . 5 %时光催化活性最好;而在fezo3的摩尔含量为0 . 05一0 . 1 %时,获得了具有超亲水性能的复合薄膜;但fezo3 / tio :的叠层膜及复合叠层膜的光催化活性及亲水性能均不理想,主要原因是fezo3的存在具有光生载流子复合中心的作用。 |
| 9. | 2 . there were statistically differences between the groups in acidity and compressive strength changing at the first 6 weeks after degradation test , mass loss and intrinsic viscosity changed significantly in whole period , volume contract happened after the 2nd week ( p < 0 . 05 ) . 3 . after modified with alginate calcium , the scaffolds have the much higher hydrophilic ability , water uptake reached 50 - 60 % ( v / v ) from 0 . 5 to 24 hours , no significant difference found between the inner groups 经过藻酸钙改性后的支架亲水性能得到良好改善,体积含水量在24小时内保持在5o朋之间,区组、组内比较无显著性差异中劝刀5 ) ;酒精处理后吸水率达到个12之间,显著高于对照组的2 10 ,区组和组内比较均存在显著性差异(卜 |
| 10. | It had many great merits such as excellent optical properties , low - cost and easiness to handle which offered promising prospects in the filed of self - cleaning , anti - fog and so on . the hydrophilicity of tio2 was influenced by many factors such as crystal structure , surface morphology , band gap , etc . preparing method and doping element would take effect on the properties of the film Tio _ 2薄膜的亲水性能受到结构形貌及其禁带宽度的影响,锐钛矿相的tio _ 2具有最好的亲水特性;平整均匀的表面不仅有利于水的铺展,而且透光率高,适于玻璃镀膜;薄膜禁带宽度降低有利于提高光能的利用率。 |