Metal-organic frameworks in Photocatalyst membranes and their challenges for water treatment under visible light
Subject Areas :Zahra Valizadeh 1 , Seyed Mohammad Hoseyni 2 , Vahid Safarifard 3 *
1 - Iran, Tehran, Iran University of Science and Technology, Faculty of Chemistry
2 - Iran, Tehran, Iran University of Science and Technology, Faculty of Chemistry
3 - Iran, Tehran, Iran University of Science and Technology, Faculty of Chemistry
Keywords: Metal-organic frameworks, photocatalyst, membrane, water treatment.,
Abstract :
As materials with porous network structures and tunable chemical properties, metal-organic frameworks (MOFs) provide a wide range of possibilities for water treatment processes. These materials can be effectively used in the removal of pollutants and water purification, especially under visible light radiation, due to their unique abilities to absorb and convert light into chemical energy. However, the main problem of MOFs lies in their powder form, which limits their practical application. Especially, the separation and recovery processes of these powder materials are difficult and time-consuming. To solve these limitations, the method of stabilizing MOFs on polymer substrates has been proposed as an innovative solution. This immobilization allows MOFs to be used as photocatalyst membranes. Photocatalyst membranes containing MOF can be effectively used in the water purification process. These membranes have the ability to destroy organic pollutants and remove metal ions through photocatalysis processes under visible light irradiation. These features are especially important in the treatment of water contaminated with chemicals and heavy metals. This study has comprehensively investigated the performance of photocatalyst membranes containing MOF in various fields of water treatment. The analyzes carried out include the investigation of different effects on the degradation of organic pollutants and the removal of metal ions using these membranes. In particular, this research focuses on optimizing the use of solar energy and increasing the long-term stability of these membranes in separation processes.
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