摘要
将纳米镧锶钴铁(La0.6Sr0.4Co0.2Fe0.8O3)引入到聚醚砜铸膜液中,采用相转化法制备了镧锶钴铁/聚醚砜(LSCF/PES)混合基质膜,通过调节PES和LSCF的含量来提高膜性能。结果表明:当PES的含量为16%,LSCF的含量为3.2%时,膜的通量达到90.4 L/(m2h),在0.3 MPa和20℃的条件下,膜对氯化镁的截留率达到了25.8%。膜性能显著受LSCF的含量和纳米颗粒的聚集影响,通过调节铸膜液配方,有望将其应用于苦咸水脱盐。
La0.6Sr0.4C0.2Fe0.8O3/polyethersulfone （LSCF/PES） mixed matrix membranes （MMMs） were prepared by means of phase inversion method. The PES and LSCF concentrations were changed to improve the membrane performance. The results show that： when the PES concentration is 16% and the LSCF weight ratio of the polymer is 3.2%, the membrane flux is 90.4 L/（m^2h）, and the rejection of MgCl2 is 25.8% at 0.3 MPa and 20℃. The membrane performance is greatly affected by the concentration of LSCF and aggregation of the nanoparticles.
出处
《塑料科技》
CAS
北大核心
2014年第12期65-68,共4页
Plastics Science and Technology
基金
国家自然科学基金(51262102)
江西省自然科学重点基金(20133ACB20007)
江西省自然科学基金(20114BAB206022)
中国博士后基金(2012M521741)
陕西省博士后基金(694291)
关键词
镧锶钴铁
聚醚砜
超滤膜
混合基质膜
复合膜
LSCF
PES
Ultrafiltration membrane
Mixed matrix membrane
Composite membrane
