渗透
膜
渗透
材料科学
化学工程
选择性
溶剂
涂层
气体分离
色谱法
复合材料
化学
有机化学
催化作用
生物化学
工程类
作者
Suhaina Mohd Ibrahim,Ken‐ichi Sawamura,K. Mishina,Xin Yu,Feridoun Salak,Seiko Miyata,Norihiro Moriyama,Hiroki Nagasawa,Masakoto Kanezashi,Toshinori Tsuru
出处
期刊:Membranes
[MDPI AG]
日期:2023-12-26
卷期号:14 (1): 8-8
标识
DOI:10.3390/membranes14010008
摘要
A 40 cm length Bis(triethoxysilyl)ethane (BTESE) membrane having different pore sizes was successfully prepared by changing the number of coating times for gas permeation (GP) and organic solvent reverse osmosis (OSRO) separation study. It was found that BTESE-6 membranes prepared through six-time coating consisted of small-sized pores in the range 0.56 to 0.64 nm estimated using modified Gas Translation (mGT) method and 0.59 to 0.67 nm estimated by nanopermporometry (NPP) method, respectively. These membranes demonstrated a high DMF rejection, RDMF > 95% with total flux, Jv total > 5 kg m−2 h−1 at operating condition feed pressure, Pf: 8 MPa; feed temperature, Tf : 50 °C; and feed flowrate, Qf : 30 mL/min; and they exhibited a high degree selectivity of He/SF6 in the range of ~ 260–3400 at a permeation temperature 200 °C. On the other hand, the larger pore sizes of the BTESE-4 membranes (pore size estimates > 0.76 nm to 1.02 nm) exhibited low DMF rejection and a low degree selectivity of He/SF6 around ~30% and 25, respectively, at the same operating condition as BTESE-6. Both GT and NPP methods can be considered as an indicator of the measurement membrane pore size. From this study, it was found that He and SF6 gases can be some of the potential predictors for water and DMF permeance. Furthermore, by comparing our OSRO membrane with other PV membranes for DMF/H2O separation, our BTESE-6 membranes still exhibited high flux in the range of 3–6 kg m−2 h−1 with a separation factor H2O/DMF in the range of 80–120.
科研通智能强力驱动
Strongly Powered by AbleSci AI