PVDF/HMO ultrafiltration membrane for efficient oil/water separation. Issue 4 (30th March 2021)

• Record Type: Journal Article
• Authors: Ismail, N. H.; Salleh, W. N. W.; Awang, N. A.; Ahmad, S. Z. N.; Rosman, N.; Sazali, N.; Ismail, A. F.
• Is Part Of: Chemical engineering communications. Volume 208:Issue 4(2021)
• Page Start: 463
• Page End: 473
• Publication Date: 2021-03-30
• Subjects: Hydrophilic membrane -- Hydrous manganese oxide (HMO) -- Mixed matrix membrane (MMM) -- Oil/water separation -- Oily wastewater; Chemical engineering -- Periodicals; 660.205
• DOI: 10.1080/00986445.2019.1650035
• Languages: English
• ISSNs: 0098-6445

Abstract

Abstract: In this research, hydrous manganese oxide (HMO) nanoparticles was adopted in polyvinylidene fluoride (PVDF) to improve the ability of the mixed matrix membrane (MMM) to separate oil/water emulsions. The MMMs – which were added with various amounts of HMO loading (3, 5, 7 and 10 wt%) – were characterized for its physicochemical properties, morphological structure, and nanoparticles dispersion of the PVDF/HMO membrane. Evidently, the presence of these nanoparticles increased the hydrophilicity and oleophobicity of the PVDF/HMO membrane as compared to those of the pristine PVDF. Concurrently, the water contact angle was reduced from 99° to 58° while oil contact angle increased from 0° to 35°. The presence of -OH groups and Mn element channeling the PVDF/HMO membrane wetting properties, which in turn improved the membrane's affinity towards water molecules and aversion to oil droplets. The PVDF/HMO membrane that contained 10 wt% of HMO loading exhibited a water flux (402 L/m 2 h) – 10 times greater than the pristine PVDF membrane with 93% oil rejection rate.