纳米TiO_2/聚酯织物的制备及光催化性能  

Preparation of Nano-TiO_2/Polyester Fabric and Its Photocatalytic Capability

作　　者：亓敬波[1,2] 梁小平[1] 姜锋[2] 王雪[2] 李建新[1] 何本桥[1] 王虹[1] 

机构地区：[1]中空纤维膜材料与膜过程教育部重点实验室,材料科学与工程学院,天津工业大学,天津300160 [2]中国纺织科学研究院生物源纤维制造技术国家重点实验室,北京100025

出　　处：《高分子材料科学与工程》2013年第2期169-172,177,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(21076156)

摘　　要：基于聚合物溶剂诱导结晶(SINC)原理,制得了纳米TiO2/聚酯光催化织物。利用X射线衍射(XRD)、热重分析(TG)和扫描电镜(SEM)对表面成分和形貌进行了表征,通过甲基橙的降解脱色试验考察了纳米TiO2/聚酯织物的光催化性能,研究了浸渍时间、悬浮液中TiO2含量对光催化性能的影响。结果表明,聚酯织物利用溶剂诱导结晶负载纳米TiO2比直接浸渍负载纳米TiO2的分散性好、活性高,且重复使用性好。溶解时间5s、悬浮液中TiO2浓度0.035 g/mL为最佳实验条件,制得的光催化织物对甲基橙的8h降解率可达95.1%。： Based on the principle of solvent-induced crystallization（SINC）, photocatalytic nano-TiO2/polyester fabric was synthesized. Surface composition and morphology were characterized by XRD, TG and SEM. The degradation of methyl orange decoloring test was used to assess the photocatalytic capability. The influences of dissolution time and TiO2 content in suspensions on photocatalytic capability were investigated. The results indicate that nano-TiO2 loaded on fabric by mean of the solvent-induced crystallization has better dispersion, more efficiently and repeatedly than direct loaded in the suspensions of nano-TiO2/absolute ethyl alcohol. The optimum experiment conditions are the dissolution time of 5s and TiO2 concentration in suspensions of 0. 035 g/mL. The 8h degradation rate of methyl orange, disposed by the photocatalytic fabric prepared under the above-mentioned condition, is 95.1%.

关 键 词：光催化 二氧化钛 聚酯 溶剂诱导结晶 甲基橙 

分 类 号：TB383[一般工业技术—材料科学与工程]