Production of Mixed-Matrix Composite Membranes Based on Metal-Organic Framework/Polyvinylidene Fluoride for Desalination of High Saline Water in Membrane Distillation

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Hosseini, Hajar Sadat | 2021

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54325 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Bastani, Dariush; Mousavi, Abbas
Abstract:
In this study, membrane distillation was used for desalination of high saline water. Recently, the synthesis of nanoparticles for the synthesis of membranes for membrane distillation has shown incredible improvement in the morphological properties, flux, and rejection. In this study, by incorporating UiO-66 functionalized with Palmitic acid into PVDF/PEG polymer solution we could improve membranes properties. Functionalization of UiO-66 with Palmitic acid was confirmed with FTIR, XRD, BET, SEM. In the membrane containing 3% Palmitic acid-UiO-66, the flux was increased by 46.5%, resulting in a flux of 12.6 LMH, and the salt rejection was improved from 99.5% to 99.9%. These results confirmed that palmitic acid-UiO-66 was successfully functionalized and incorporated into membranes
Keywords:
Membrane Distillation ; Desalination ; Polyvinylidene Fluoride (PVDF) ; Metal-Organic Framework ; Mixed-Matrix Membrane ; Water Treatment ; UiO-66 Hybrid Nanoparticles

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