CC@TiO_(2)柔性复合膜的制备及其油水分离性能  

Preparation and their oil-water separation performance of CC@TiO_(2)flexible composite membrane

作　　者：郎集会[1] 李泽新 孙铭阳 陈诺 张轩畅 张郡怡 褚明阳 LANG Ji-hui;LI Ze-xin;SUN Ming-yang;CHEN Nuo;ZHANG Xuan-chang;ZHANG Jun-yi;CHU Ming-yang(College of Physics,Jilin Normal University,Siping 136000,China)

机构地区：[1]吉林师范大学物理学院,吉林四平136000

出　　处：《吉林师范大学学报(自然科学版)》2025年第2期17-23,共7页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(22378158);吉林省科技发展计划项目(20230508040RC)。

摘　　要：采用柔性碳织物作为基底材料,通过调控酸与水体积比成功制备了二氧化钛改性碳织物(CC@TiO_(2))柔性复合膜.借助扫描电子显微镜(SEM)、能量色散光谱仪(EDS)、X射线光电子能谱(XPS)和X射线衍射仪(XRD)等分析手段,研究了不同酸与水体积比对CC@TiO_(2)膜的结构、形貌及其油水分离性能的影响.通过对碳织物在TiO_(2)改性前后的微观形貌、元素组成以及接触角等参数的对比分析,得到了性能最佳的CC@TiO_(2)膜.研究结果显示,TiO_(2)改性后的碳织物表面粗糙度增加,当酸与水体积比为1∶1时,所得CC@TiO_(2)膜表现出优异的超亲水性和水下超疏油性,油水分离效率可达87.56%.在紫外光照射下,该膜还展现出良好的自清洁能力,经45次循环实验后该膜分离效率可恢复到86.99%,适用于长循环油水分离实际应用.Titanium dioxide modified carbon fabric(CC@TiO_(2))membranes with different acid-water volume ratios were successfully prepared by using flexible carbon fabric as the substrate.With the help of the analytical techniques such as scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),X-ray photoelectron spectroscopy(XPS)and X-ray diffractometer(XRD),the effects of different acid-water volume ratios on the structure,morphology and oil-water separation performance of CC@TiO_(2)membranes were investigated.Through the comparative analysis of the microscopic morphology,elemental composition and contact angle of the CC before and after TiO_(2)modification,CC@TiO_(2)membrane with the optimal performance was obtained.The results show that the surface roughness of TiO_(2)-modified CC increases,and the CC@TiO_(2)membrane owned the excellent superhydrophilicity and underwater superoleophobicity exhibits the oil-water separation efficiency of 87.56% when the acid-water volume ratio is fixed at 1∶1.Also,the membrane exhibits good self-cleaning ability under UV irradiation that oil-water separation efficiency can recovered to 86.99% after 45 cycles.All the results indicate that the prepared membrane is suitable for long cycle oil-water separation application.

关 键 词：水热法 半导体基分离膜 掺杂改性 油水分离 自清洁性能 

分 类 号：TQ051.893[化学工程]