Green approach for the synthesis of ultrafiltration photocatalytic membrane for tannery wastewater: modeling and optimization

Immobilization of biogenic metal nanoparticles on sustainable materials – green approach applied to wastewater treatment: a systematic review

“…Different types of solid supports can be used for the immobilization of biogenic MNP and the most common are polymer-based membranes, 65,66 glass, 67 silica gel, 68 commercial activated carbon, 69 synthetic zeolites, 70–72 resins, 73 graphene oxides (GO) 74 and reduced graphene oxide (rGO). 75,76…”

“…77 Recently, Kalaivizhi et al 65 described the removal process of Congo red and methylene blue by using biogenic ZnONP immobilized on polysulfone/polyurethane membranes. Arif et al 66 studied the application of TiO 2 -NP synthesized through a green route using a polyvinylidene fluoride polymer embedded in the extract of Cajanus cajan to develop a photocatalytic membrane. This membrane supporting biogenic TiO 2 acted as a synergistic separator to reject chromium (Cr 6+ ) and further reduce the ion toxicity by photocatalytic reduction of the concentrated Cr 6+ , achieving >90% rejection and >85% reduction of Cr 6+ .…”