Photocatalytic PVDF ultrafiltration membrane incorporated with visible-light driven ternary heterojunction: Pure water flux behavior

Photocatalytic PVDF-ZnO/Ag2CO3/Ag2O mixed matrix membranes (MMM) were prepared by wet-phase inversion method. Incorporating the ZnO/Ag2CO3/Ag2O photocatalyst into the membrane surface resulted in a more hydrophilic membrane surface. The PVDF-ZnO/Ag2CO3/Ag2O membrane exhibited remarkable ability on p...

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Main Authors: Rosman, Nurafiqah, Salleh, Wan Norharyati Wan, Jaafar, Juhana, Harun, Zawati, Ismail, Ahmad Fauzi, Ismail, Nor Hafiza, Ahmad, Siti Zu Nurain, Razali, Nur Aqilah Mohd, Awang, Nor Asikin
Format: Conference Proceeding
Language:English
Subjects:
Filtration
Heterojunctions
Light irradiation
Membranes
Photocatalysis
Photocatalysts
Ultrafiltration
Water purification
Zinc oxide
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Summary:Photocatalytic PVDF-ZnO/Ag2CO3/Ag2O mixed matrix membranes (MMM) were prepared by wet-phase inversion method. Incorporating the ZnO/Ag2CO3/Ag2O photocatalyst into the membrane surface resulted in a more hydrophilic membrane surface. The PVDF-ZnO/Ag2CO3/Ag2O membrane exhibited remarkable ability on pure water flux filtration under visible light irradiation due to the photoinduced hydrophilicity of ZnO/Ag2CO3/Ag2O. Thus, when pure water is filtered under visible light (photo-filtration), the flux found slightly higher than flux in the dark. Apart of that, membranes with higher loading of ZnO/Ag2CO3/Ag2O photocatalyst, have higher flux increment during light irradiation. The highest loading of ZnO/Ag2CO3/Ag2O photocatalyst showed the highest PWF increment up to ∼9.81% after 180 min of light irradiation. Throughout this study, the excellent performance of PVDF-ZnO/Ag2CO3/Ag2O membrane provided valuable insight for photocatalytic membrane application in water production field.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0099602