PVDF-Based Piezo Catalytic Membranes—A Net Zero Emission Approach towards Textile Wastewater Purification

Among various water purification techniques, advancement in membrane technology with better fabrication and analysis is getting the main research attention. Piezo catalytic degradation of water pollutants is an emerging area of research in water purification technology. This review article mainly focused on piezoelectric PVDF (polyvinylene difloride) polymer-based membranes and their nanocomposites for textile wastewater remediation. At the beginning of the article, the classification of piezoelectric materials is discussed. Out of various membrane-forming polymers, PVDF is a piezoelectric polymer discussed in detail due to its exceptional piezoelectric properties. Polyvinylidene difluoride can show excellent piezoelectric properties in the beta phase. Therefore, various methods of β phase enhancement within PVDF polymer and various factors which have a critical impact on its piezo catalytic activity are briefly explained. This review article also highlights the major aspect of piezoelectric membranes for dye degradation net zero approach. β phase of PVDF piezoelectric material generates electron-hole pair by external vibrations. Possibility of Piezo catalytic dye degradation into CO2 and H2 by (mechanical vibrations and capturing these gases to attain the net zero goal.