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Industrial effluents hold large quantities of water in an unusable form which can be recovered using several techniques to address the demands of freshwater needs of the world. Photocatalysis is one such promising technique which can be used to mineralize refractory pollutants and subsequently distill freshwater from industrial effluents. Heterogeneous photocatalysis aims to achieve this by deploying slurry-based nanocomposites in the bulk of wastewater and harnessing solar radiation to drive redox reactions. On the contrary, photocatalytic membranes seek to employ immobilized catalysts to mineralize pollutants concentrating on the membrane surface and decrease the volume of rejects in wastewater treatment. Both these systems can be applied in a closed-loop fashion. The assessment of the photothermal-coupled photocatalytic desalination technique driven by solar radiation for the reclamation of industrial …