through advanced filtration, and facilitate efficient gas separation—like the separation of carbon dioxide. Moreover, they are a key component in resource recovery.The membranes can be made from polymers, glass, zeolite, metal, or composite materials. Among these, polymeric membranes dominate due to their affordability,"Despite their significant contributions to green processes and, the fabrication of these incredible materials is not environmentally friendly.
Moreover, the other most common solvents, such as dioctyl phthalate are identified as a human carcinogen, while dibutyl phthalate potentially causes fetal malformation. These harmful solvents not only pose risks to but also contribute to environmental harm by generating vast amounts of wastewater during membrane production, which exceeds 50 billion liters annually. Thus, the search for environmentally friendly solvent alternatives holds significant importance.In her newly published thesis, Ismail employed a life cycle assessment for the first time to evaluate the sustainability of membrane fabrication.
Taking a step forward, she introduces three families of solvents that are both cheaper, more sustainable and has better performance than the traditional, toxic ones. These newly developed membranes have been used for a variety of purposes, such as desalination, decontaminating nuclear wastewater, and purifying water. Having safe and easily accessible water plays a crucial role in safeguarding public health.
"This research not only holds societal implications but also bears significance for membrane manufacturers, especially considering the limitations imposed on the use of commonly employed solvents in Europe," says Ismail.