Harruddin Norlisa, Saufi Syed M, Faizal Che Ku M, Mohammad Abdul Wahab
Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang Lebuhraya Tun Razak, 26300 Gambang Pahang Malaysia
Faculty of Engineering Technology, Universiti Malaysia Pahang Lebuhraya Tun Razak, 26300 Gambang Pahang Malaysia.
RSC Adv. 2018 Jul 16;8(45):25396-25408. doi: 10.1039/c8ra03392g.
In this study, the removal of acetic acid by supported liquid membrane (SLM) using hybrid polyethersulfone (PES)-graphene membrane prepared by vapor induced phase separation (VIPS) was investigated. The effects of graphene loading, coagulation bath temperature, air exposure time, and air humidity on the morphology, mechanical strength, porosity, and contact angle of the membrane were analyzed. The performance and stability of the hybrid membrane as a SLM support for acetic acid removal were studied. The best PES-graphene membrane support was produced at a coagulation bath temperature of 50 °C, an air exposure time of 30 s and air humidity of 80%. The fabricated membrane has a symmetrical micropore cellular structure, high porosity and high contact angle. Under specific SLM conditions, almost 95% of acetic acid was successfully removed from 10 g L aqueous acetic acid solution. The hybrid membrane remains stable for more than 116 h without suffering any membrane breakage during the continuous SLM process.
在本研究中，对采用气相诱导相分离（VIPS）制备的杂化聚醚砜（PES）-石墨烯膜通过支撑液膜（SLM）去除乙酸进行了研究。分析了石墨烯负载量、凝固浴温度、空气暴露时间和空气湿度对膜的形态、机械强度、孔隙率和接触角的影响。研究了该杂化膜作为用于去除乙酸的支撑液膜载体的性能和稳定性。在凝固浴温度为50℃、空气暴露时间为30秒且空气湿度为80%的条件下制备出了最佳的PES-石墨烯膜载体。所制备的膜具有对称的微孔蜂窝结构、高孔隙率和高接触角。在特定的支撑液膜条件下，从10 g/L的乙酸水溶液中成功去除了近95%的乙酸。在连续支撑液膜过程中，该杂化膜保持稳定超过116小时，未出现任何膜破损情况。
