摘要
以细菌纤维素为原材料,先后通过NaIO4和NaHSO3氧化还原反应制备了表面部分磺酸化的细菌纤维素(SBC)纳米纤维.利用SBC纳米纤维多孔膜替代传统的超滤膜作为支撑底膜,结合界面聚合反应调控制得复合纳滤膜,并对其纳滤性能进行研究.结果表明,制备得到了对Na2SO4和MgSO4具有高截留率(>96%)和超高分离通量(>320 L·m^-2·h^-1·MPa^-1)的新型纳滤膜.
Sulfonated bacterial cellulose(SBC)nanofibers were prepared\%via\%oxidation-reduction reaction of NaIO 4 and NaHSO 3.Using this SBC nanofibers film as a new support porous membrane,high performance nanofiltration membrane with highly crumpled polyamide selective layer was prepared via interfacial polymerization between piperazine(PIP)and trimesoyl chloride(TMC).This novel nanofiltration membrane exhibits a superior desalination performance with a high rejection rate of 98.6%and a high permeance of 320L·m^-2·h^-1·MPa^-1to 1 g/L Na 2SO 4.The new nanofiltration membrane has a wide application prospect in desalination.
作者
孔金凤
朱玉长
靳健
KONG Jinfeng;ZHU Yuzhang;JIN Jian(College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China;Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2020年第4期690-696,共7页
Chemical Journal of Chinese Universities
基金
国家自然科学基金杰出青年基金(批准号:51625306)和国家自然科学基金青年科学基金(批准号:51603229)资助.
关键词
磺化细菌纤维素纳米纤维
纳滤膜
脱盐
高通量
Sulfonated bacterial cellulose nanofiber
Nanofiltration membrane
Desalination
High flux
