| Effect of Heating On Its Photoinduction Superhydrophilicity |
| Authors： Lv Detao1, Guo Xianying2 |
| Units： 1.NO.33 Research Institute of China Electronics Technology Group Corporation, Taiyuan 030006; 2. College of Chemical and Environmental Engineering, Qingdao University, Qingdao 266071 |
| KeyWords： sol-gel method; SiO2-TiO2; hydrophilicity; film; heat treatment |
| ClassificationCode：0484 |
| year,volume(issue):pagination： 2010,30(6):0-0 |
|
Abstract： |
| Abstract：In order to prepare the SiO2-TiO2 film of excellent photoinduction superhydrophilicity, we prepared SiO2-TiO2 sol using butyl titanate and tetraethyl orthosilicate as premedicant by sol-gel method under ultrasonography condition, SiO2-TiO2 films were prepared on common glass substrates with dip-coating technique, we got the end-products after different heat-treatment methods using microwave oven and muffle furnace. Finally the behaviour of these films were checked by contact angle testing, ultraviolet-visible spectrophotometer, IR，XRD and SEM. Our results suggest that thehydrophilicity of SiO2-TiO2 films heated by muffle furnace is better than that by microwave oven。 When the volume ratio of TEOS and TBOT is 0.75, the contact angle is minimum and comes up to 4.3°, which is sufficient to satisfy the requirement of anti-pollution and self-cleaning; the appearance of Ti-O-Si in infrared spectrogram suggest that a new composite oxide is formed between SiO2 and TiO2，but compared to muffle furnace, the hydrophilic group of SiO2-TiO2 films prepared by microwave oven is destroyed during heating. |
|
Funds： |
|
AuthorIntro： |
| 吕德涛，山东蓬莱人，1984年出生，男，青岛大学材料学硕士，现任中国电子科技集团第三十三研究所研究员，主要研究TiO2溶胶动力学和TiO2薄膜的各种制备方法。 |
|
Reference： |
|
[1]Permpoon S, Houmard M, Riassetto M, et al. Natural and persistent superhydrophilicity of SiO2/TiO2 and TiO2/SiO2 bi-layer films [J]. Thin Solid Films, 2008,516(6):957-966. [2] Vives S, Meunier C. Mixed SiO2–TiO2 sol–gel films on mild steel substrates: Sol composition and thermal treatment effects [J]. Surface and Coatings Technology, 2008, 202(11): 2374-2378. [3]Madaeni S, Ghaemi N. Characterization of self-cleaning RO membranes coated with TiO2 particles under UV irradiation [J]. Journal of Membrane Science, 2007,303(1-2):221-233. [4] Beyers E, Biermans E, Ribbens S, et al. Combined TiO2/SiO2 mesoporous photocatalysts with location and phase controllable TiO2 nanoparticles [J]. Applied Catalysis B: Environmental, 2009, 88(3-4): 515-524. [5]高铁,钱朝勇,于向阳. TiO2 表面超亲水性[J].材料导报,2000,11（7）,27-29. [6]何静,何伟辉,于云,等.TiO2-SiO2双组分膜结构与光催化性能的研究[J].无机材料学报,2005,20(3):713-719. [7]刘冠昆,车冠全,陈六平,等.物理化学[M],广州：中山大学出版社,2000,428-430. [8]贺蕴秋,王德平,徐振平,等.无机材料物理化学[M],北京：化学工业出版社,2005,205-216. [9]王永强,胡晓云,苗仲海,等.溶胶-凝胶法制备TiO2- SiO2多层增透膜[J].光子学报,2008,37（6）1165-1168. [10]申树芳.掺杂金属离子纳米TiO2薄膜的制备及亲水性[D].华东师范大学硕士论文,2008. [11]Liu Z Y, Zhang X T, Murakami T, et al. Sol–gel SiO2/TiO2 bilayer films with self-cleaning and antireflection properties [J]. Solar Energy Materials and Solar Cells, 2008,92(11),1434-1438. [12] Kameshima Y, Yoshizawa A, Nakajima A, et al. Solid acidities of SiO2–TiO2/montmorillonite composites synthesized under different pH conditions[J]. Applied Clay Science, 2009, 46(2): 181-184. [13] 姜东,徐耀,侯博,等. SiO2/TiO2催化剂的制备及其光催化性能[J],无机材料学报,2008,23（5）,1080-1084. |
|
Service： |
| 【Download】【Collect】 |
《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com
京公网安备11011302000819号