Siti Nur Amirah Idris1, Nora Jullok1,2, Woei Jye Lau3, Hui Lin Ong1,2, Cheng-Di Dong4. 1. Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, Kawasan Perindustrian Jejawi, Arau 02600, Malaysia. 2. Centre of Excellence for Biomass Utilization & Taiwan-Malaysia Innovation Centre for Clean Water and Sustainable Energy (WISE Center), Universiti Malaysia Perlis, Lot 17, Kompleks Pusat Pengajian Jejawi 2, Jejawi, Arau 02600, Malaysia. 3. Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia, UTM, Skudai Johor 81310, Malaysia. 4. Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, 142, Hai-Chuan Road, Nan-Tzu District, Kaohsiung 81157, Taiwan.
Abstract
This study focuses on the development of flat sheet thin film nanocomposite (TFN) pressure retarded osmosis (PRO) membranes for the enhancement of osmotic power generation by the incorporation of laboratory-synthesised graphene oxide (GO) into the polysulfone (PSf) polymer matrix. A series of membranes containing different weight percent of GO (0, 0.1, 0.25, 0.5 and 1.0 wt%) were fabricated via a phase inversion method with polyethylene glycol (PEG) as the pore forming agent. The results show that the TFN-0.25GO membrane has excellent water flux, salt reverse flux, high porosity and an enhanced microvoids morphology compared to the control membrane. The highest power density was achieved when TFN-0.25GO was used is 8.36 Wm-2 at pressure >15 bar. It was found that the incorporation of GO into the polymer matrix has significantly improved the intrinsic and mechanical properties of the membrane.
This study focuses on the development of flat sheet thin film nanocomposite (pan class="Chemical">TFN) pressure retarded osmosis (PRO) membranes for the enhancement of osmotic power generation by the incorporation of laboratory-synthesised graphene oxide (GO) into the polysulfone (PSf) polymer matrix. A series of membranes containing different weight percent of GO (0, 0.1, 0.25, 0.5 and 1.0 wt%) were fabricated via a phase inversion method with polyethylene glycol (PEG) as the pore forming agent. The results show that the TFN-0.25GO membrane has excellent water flux, salt reverse flux, high porosity and an enhanced microvoids morphology compared to the control membrane. The highest power density was achieved when TFN-0.25GO was used is 8.36 Wm-2 at pressure >15 bar. It was found that the incorporation of GO into the polymer matrix has significantly improved the intrinsic and mechanical properties of the membrane.
Entities:
Keywords:
graphene oxide; polysulfone; power density; pressure retarded osmosis; thin film nanocomposite membrane
Authors: Sasha Stankovich; Dmitriy A Dikin; Geoffrey H B Dommett; Kevin M Kohlhaas; Eric J Zimney; Eric A Stach; Richard D Piner; SonBinh T Nguyen; Rodney S Ruoff Journal: Nature Date: 2006-07-20 Impact factor: 49.962
Authors: Cristina Monteserín; Miren Blanco; Estibaliz Aranzabe; Ana Aranzabe; Jose Manuel Laza; Aitor Larrañaga-Varga; Jose Luis Vilas Journal: Polymers (Basel) Date: 2017-09-14 Impact factor: 4.329