In the present study

polyethersulfone based nanohybrid membranes were effectively fabricated by incorporating graphene oxide (GO) and hydrotalcite (HT) nanosheets into the membrane structure. HT was prepared to overcome the irreversible agglomeration behavior of GO at a high concentration which affects the performance of the membranes. In particular

the shedding of HT in formamide provides a two-dimensional nanosheet with a higher positive charge density to prevent the restacking of GO nanosheets. Here

exfoliated GO and HT with different combinations (1:1

1:2 and 1:3) were infused in the membrane matrix to treat lead-acid battery effluent effectively. Finally

the hybrid membranes were characterized for hydrophilicity

mechanical strength and pure water flux. In combination with the superior properties of GO and HT

the prepared hybrid membranes can be used as effectively to improve the separation and permeation performance. The phase inversion process eliminated the leaching of nanoparticles from the membrane matrix. The reusability of the hybrid membrane was achieved using 0.1 mol?L

-1

NaOH solution and reused without significant reduction in lead removal efficiency.

The cost analysis of the membrane was also estimated from the lab study. Therefore

the present study suggested the selective and sustainable treatment of lead from a real-life effluent.