Pressure retarded osmosis (PRO) has been considered as promising technology utilizing blue energy1. However, polymeric thin film composite membranes are insufficient to meet requirements: robustness, high permeability and selectivity. In this study, new type of membrane has been developed consisting of thermally rearranged poly(benzoxazole) (TR-PBO) electrospun membrane as a support layer and ultra-thin polyamide (PA) active layer2. Because TR-PBO has high mechanical strength, it can be used at high hydraulic pressure. This means that high concentrated solution can be used as a draw and, subsequently, high power density can be obtained. The characteristics and performance of the membrane will be presented.

• 문선주(한양대학교 에너지공학과, Department of Energy Engineering, Hanyang University) | Sun Ju Moon
• 김지훈(한양대학교 에너지공학과, Department of Energy Engineering, Hanyang University) | Ji Hoon Kim
• 박상현(한양대학교 에너지공학과, Department of Energy Engineering, Hanyang University) | Sang Hyun Park
• 이영무(한양대학교 에너지공학과, Department of Energy Engineering, Hanyang University) | Young Moo Lee