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   Thin Film Nanocomposite Forward Osmosis Membrane Prepared By Graphene Oxide Embedded Psf Substrate  
   
نویسنده Tajik Saharnaz ,Moini Jazani Omid ,Shokrollahzadeh Soheila ,Latifi Mahdi
منبع Journal Of Particle Science And Technology - 2016 - دوره : 2 - شماره : 2 - صفحه:103 -117
چکیده    One of the limiting factors in good performance of forward osmosis (fo) membranes is the internal concentration polarization (icp). to reduce icp, thin film nanocomposite forward osmosis (tfn-fo) membranes were fabricated by adding different amounts of graphene oxide (go) nanoplates (0-1 wt. %) to polymer matrix of polysulfone (psf) substrate. the prepared nanocomposite membranes exhibited both hydrophilicity and porosity higher than that of neat psf counterpart. an optimum amount of 0.5 wt. % was obtained for go addition into the membranes. the corresponding fabricated thin film nanocomposite (tfn) membrane (tfng0.5) revealed a water permeability of 2.44 l/m²h bar which is 66% higher compared to an in-house made composite membrane. the fo performance of tfn was assessed by di water as feed solution and 1 m nacl as draw solution in alds orientation. the water flux of the synthesized fo membranes increased upon adding of go nanoplates and reached to a maximum water flux of 37.74 (l/m²h) for tfng0.5 membrane. this flux is about 3 times higher than tfc membranes without significant changes in their salt rejection. the higher water flux of the tfn membranes can be attributed to icp decrease originating from reduction of structural parameter of the membranes.
کلیدواژه Forward Osmosis (Fo) ,Nanocomposite Substrates ,Graphene Oxide Nanoplates ,Internal Concentration Polarization (Icp)
آدرس University Of Isfahan, Faculty Of Engineering, Department Of Chemical Engineering, ایران, University Of Isfahan, Faculty Of Engineering, Department Of Chemical Engineering, ایران, Iranian Research Organization For Science And Technology (Irost), Department Of Chemical Technologies, ایران, Iranian Research Organization For Science And Technology (Irost), Department Of Chemical Technologies, ایران
پست الکترونیکی sm.latifi@yahoo.com
 
     
   
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