The extensive use of organic solvents for the fabrication of membranes is another environmental concern. Among the two conventional organic solvents analysed, DMF is slightly greener than NMP. It is vital to use green solvents (such as Cyrene) to minimise the environmental footprint of the fabrication stage. Overall, superhydrophilic membranes fabricated using photovoltaic energy and green solvents are promising alternatives for oil-water separation.