Comparative study of embedded functionalised MWCNTs and GO in Ultrafiltration (UF) PVC membrane: interaction mechanisms and performance
Autor: | N. A. Tretyakova, T. M. Sabirova, Kadhum M. Shabeeb, Qusay F. Alsalhy, Bassam I. Khalil, Eman S. Awad, Amna Jalal Sadiq, Hasan Shaker Majdi, Auda J. Braihi, Sama M. Al-Jubouri |
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Rok vydání: | 2020 |
Předmět: |
Nanotube
Flat sheet membrane Materials science Health Toxicology and Mutagenesis Oxide Ultrafiltration Soil Science 010501 environmental sciences 01 natural sciences Analytical Chemistry law.invention chemistry.chemical_compound Membrane interaction law Environmental Chemistry Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Graphene 010401 analytical chemistry Public Health Environmental and Occupational Health Pollution 0104 chemical sciences Polyvinyl chloride Membrane chemistry Chemical engineering |
DOI: | 10.6084/m9.figshare.13474865 |
Popis: | This work presents the development of polyvinyl chloride/functionalised multi-carbon nanotube (PVC/F-MWCNT) membranes and PVC/graphene oxide (PVC/GO) membranes for the improved removal of chemical oxygen demand (COD) from actual petroleum wastewater. Also, this work for the first time presents the proposed interaction mechanism between the contents of PVC/GO and PVC/F-MWCNT membranes as well as the interaction mechanism of each composite membrane with water molecules. The effect of both F-MWCNT and GO content on the characteristics and performance of the PVC/F-MWCNT membrane and PVC/GO membrane were studied. Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), atomic force microscopy (AFM), contact angle (CA), differential scanning calorimetry (DSC), porosity and tensile strength were used to examine the properties of F-MWCNT, GO, PVC/F-MWCNT and PVC/GO membranes. The composite membranes’ performance was studied by measuring the rejection of chemical oxygen demand (COD) and mass flux. It was found that F-MWCNTs and GO played significant roles in the membranes’ structural morphology. A significant improvement was obtained in the CA, porosity and tensile strength of the membranes by embedding the PVC casting solution with 0.12 wt% of each F-MWCNTand GO. The PVC/F-MWCNTs membrane showed higher performance in term of mass flux and COD rejection that reached 88.9%, which makes using a PVC/F-MWCNTs membrane preferable to remove COD from petroleum wastewater. |
Databáze: | OpenAIRE |
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