中国造纸2026，Vol.45Issue(6)：1-8,8.DOI:10.11980/j.issn.0254-508X.2026.06.001
干燥方式对纤维素膜结构及其盐差发电性能的影响研究
Study on the Effect of Drying Methods on the Structure of Cellulose Membranes and Their Salinity-gradient Power Generation Performance
摘要
Abstract
This study employed natural cellulose as the raw material to prepare porous cellulose membranes via different drying methods,systematically investigated the effects of drying methods on the pore structure and salinity-gradient power generation performance.Compared to vacuum drying,heated drying,and drying at ambient temperature and pressure,freeze-drying endowed cellulose membranes with superi-or porous structure characteristics,under pre-freezing conditions at-80℃,freeze-dried porous cellulose membrane(-80-FDCM)exhibited abundant and uniform nanoscale pores with an average pore diameter of 10.8 nm,a specific surface area of 26.70 m2/g,porosity of 95.4％,and water retention of 173％,had a high ion-selective transport capacity.Under 50-fold and 500-fold NaCl concentration gradients,the output power density of-80-FDCM increased to 6.07 and 45.62 W/m2,respectively,while demonstrating excellent long-term operational stability.关键词
纤维素膜/冷冻干燥/离子选择性传输/盐差发电Key words
cellulose membrane/freeze-drying/ion-selective transport/salinity-gradient power generation分类
轻工纺织引用本文复制引用
刘园园,于之洋,王振,杨嘉玮,黄六莲,李建国,陈礼辉..干燥方式对纤维素膜结构及其盐差发电性能的影响研究[J].中国造纸,2026,45(6):1-8,8.基金项目
国家自然科学基金(32371978) （32371978）
宜宾市竹产业重大攻关项目智慧竹业关键技术研究与集成示范(YBZD202401). （YBZD202401）
