采用溶胶一凝胶法制备了TiO2薄膜、TiO2-ZnO纳米薄膜和Ag+/TiO2-ZnO纳米薄膜.通过X射线衍射和原子力显微镜表征了样品的晶相、晶粒尺寸和形貌.以水(H2O)作为极性溶液参照物、苯(C6H6)作为非极性溶液参照物,研究了掺杂量、煅烧温度、表面处理对薄膜光致双亲性的影响.结果表明:在ZnO/TiO2复合薄膜中,适量掺杂Ag+会提高其双亲性,摩尔比为1%时最佳.煅烧温度的不同能够导致薄膜的晶粒粒径、晶型及薄膜表面的粗糙度发生变化,从而影响薄膜的双亲性能.煅烧温度为550℃、经酸溶液或热处理后Ag+/TiO2-ZnO纳米薄膜的双亲性最佳,其晶粒粒径约为21.1 nm.此时,亲水角和亲油角分别为2°和0.5°.Ag+/TiO2-ZnO纳米薄膜的双亲性明显高于纯TiO2和TiO2-ZnO纳米薄膜.
TiO2 films,TiO2-ZnO composite films and Ag+/TiO2-ZnO composite films were synthesized by sol-gel process.The crystal phase,size of particles and surface morphology of the film samples were characterized by X-ray diffraction and atomic force microscopy.The effects of annealing temperature,amount of Ag+and treatment method on hydrophilic-lipophilic property on induced Amphilicity of the TiO2,TiO2-ZnO and Ag+/TiO2-ZnO films were investigated using H2O as polarity solution and C6H6 as non-polarity solution.The results indicate that Ag+ doping appropriately can provide induced Amphilicity,When doped amount of Ag+ is 1%,the film of Ag+ ZnO/TiO2 film has the best induced Amphilicity.Annealing temperature affect the size of particles,the composition and roughness of films notably,and then lead to a remarkable change in induced Amphilicity of the films.The films annealed at 550℃,treatment with acid or heat and induced Amphilicity of the Ag+/TiO2-ZnO composite films is best.The size of particles is about 21.1 nm.In this best condition,the contact angle is 2°(0.5°).Ag+/TiO2-ZnO films is the best among pure TiO2 films,TiO2-ZnO composite films and AS+/TiO2-ZnO composite films.
参考文献
| [1] | Akira Fujishima;Tata N. Rao;Donald A. Tryk .Titanium dioxide photocatalysis[J].Journal of photochemistry and photobiology, C. Photochemistry reviews,2000(1):1-21. |
| [2] | 王树峰,朱启安,陈万平,孙旭峰,张琪.掺Fe3+附银二氧化钛光催化剂的制备及其光催化活性研究[J].功能材料,2007(02):179-182. |
| [3] | 张青红,高濂,郭景坤.二氧化钛纳米晶的光催化活性研究[J].无机材料学报,2000(03):556-560. |
| [4] | WANG R;KAZUHITO Hashimoto;AKIRA Fujishima .Light-induced amphiphilic surface[J].Nature,1997,388(31):431-432. |
| [5] | 余家国,赵修建,赵青南.光催化多孔TiO2薄膜的表面形貌对亲水性的影响[J].硅酸盐学报,2000(03):245-250. |
| [6] | 田守卫,王作辉,颜家振,黄婉霞.WO3+掺杂对纳米TiO2薄膜可见光致亲水性的影响[J].功能材料与器件学报,2007(02):113-117. |
| [7] | 曾人杰,庞起,林仲华,龙翔云,方智敏.钇离子掺杂对二氧化钛纳米薄膜光诱导超亲水性能的影响及其机理[J].无机化学学报,2003(07):678-684. |
| [8] | 沃松涛,崔晓莉,张群,杨锡良,章壮健.紫外光下纳米TiO2 薄膜亲水性机理的电化学研究[J].化学物理学报,2004(02):211-214. |
| [9] | 李建芬.纳米TiO2的特性及其在环保方面的应用[J].环境技术,2005(06):22-25,28. |
| [10] | 王云霞,阎逢元.多层纳米TiO2薄膜化学及机械稳定性的研究[J].材料科学与工程学报,2005(05):590-594. |
| [11] | 孙文涛,周树云,江雷,陈萍.TiO2光致双亲性与水性油墨转印的研究[J].高等学校化学学报,2003(09):1642-1644. |
| [12] | 刘欣,唐振方,叶勤,吴奎,张楠.钒离子注入改进Pilkington自洁玻璃材料的亲水性研究[J].材料导报,2006(02):137-139. |
| [13] | 黄东升,曾人杰,陈朝凤,李玉花.铁、氦共掺杂二氧化钛薄膜的亲水性能[J].物理化学学报,2007(07):1037-1041. |
| [14] | 蒋新,吴艳香,陈喜明.掺杂钒和硅对TiO2薄膜超亲水性的影响[J].无机化学学报,2006(09):1723-1727. |
| [15] | 戴剑锋,李扬,王青,李维学,吴中立.Sol-gel旋涂法制备纳米TiO2薄膜及其双亲性能研究[J].材料导报,2008(01):124-126. |
| [16] | 郝彦忠,卢俊爱.纳米TiO2与纳米ZnO复合粉体的制备、表征及光电性能研究[J].功能材料,2005(05):723-726. |
| [17] | 刘彭义,叶勤,唐振方,孙汪典,叶海,赵丽特,张丽丽.退火温度对纳米TiO2薄膜结构和亲水性的影响[J].真空科学与技术学报,2004(02):133-136. |
| [18] | 柳清菊,李金莉,靳映霞,王庆辉,吴兴惠.掺银TiO2薄膜的亲水特性[J].功能材料与器件学报,2003(04):391-395. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%