CAJ | 학술논문

采用溶胶一凝胶法在玻璃基片上制备了TiO：多孔薄膜，主要研究了pH值、模板剂以及乙醇添加量对溶胶和多孔膜性能的影响．研究结果表明：溶胶一凝胶制备过程中，pH一3时和以聚乙二醇～1000为模板剂可得到稳定的溶胶，且n（PEO-1000）／n（Ti）为0．050时所得到的溶胶颗粒最小，团聚最轻，由其可制备出结构均一性好、无开裂的多孔膜；n（CH3CH2OH）／n（Ti）为24：1时，溶胶可在玻璃基体上形成完整的膜，烧结过程中随着聚乙二醇分解的CO2和H2O的逸出形成了许多微孔，得到完整的有序多孔TiO2薄膜。
채용용효일응효법재파리기편상제비료TiO：다공박막，주요연구료pH치、모판제이급을순첨가량대용효화다공막성능적영향．연구결과표명：용효일응효제비과정중，pH일3시화이취을이순～1000위모판제가득도은정적용효，차n（PEO-1000）／n（Ti）위0．050시소득도적용효과립최소，단취최경，유기가제비출결구균일성호、무개렬적다공막；n（CH3CH2OH）／n（Ti）위24：1시，용효가재파리기체상형성완정적막，소결과정중수착취을이순분해적CO2화H2O적일출형성료허다미공，득도완정적유서다공TiO2박막。
Porous TiO2 thin films deposited on glass substrates were prepared by sol-gel method. The influence of pH value, template agent and adding amount of ethanol on the properties of the sol and the porous film were studied. Experimental results show that in the process of sol-gel, the steady and trans- parent sol was obtained when pH=3 and polyethylene glycol-1000 was used as template agent, and the sol with the smallest particles and the least aggregation was obtained when n(PEG-1000)/n(Ti) was 0.05. The porous films with uniform structure and none cracking were prepared by the above sol. The in- tegrity film was formed from the sol with n(CH3CH2OH)/n(Ti)=24 : 1, with the decomposition of poly- ethylene glycol and the escaping of CO2 and H20 during sintering, the integrity orderly porous TiO2 film with many tiny pores was prepared.