Tailor-made Thin Film Nanocomposite Membrane Incorporated with Boron Nitride Nanosheets for the Removal of DyeWater

Two-dimensional (2D) layered hexagonal boron nitride nanosheets (h-BNNs), known as white graphene, is a fascinating class of nanomaterials with a high potential in catalysis, electronics, photonics, energy storage, and sensing. In this study, we report on a straightforward approach to modify the surface of BN with cyclopentadienyl and its application as a new absorbent for the removal of dye from water. Cyclopentadienyl-functionalized boron nitride (cpd-hBNNs) were characterized by FE-SEM and as well as BET analysis. Collectively, our results showed that cpd-hBNNs, with the high adsorption capacity and reusable property, is a promising candidate for the removal of pollutants from water. It is found that with the presence of BNCD, the TFN membranes exhibited higher surface hydrophilicity due to increment in Negative group and carboxyl groups in PA layer, hence, improved the attraction between water molecules and membrane surface. Upon incorporation of of BNCD, the resultant TFN membrane achieved 98% removal rate for MgSO4, respectively along with 31.4% higher water flux than the membrane contained no BN.

Keywords:

Thin Film Nanocomposite , Interfacial Polymerization , Boron nitride , Salt Rejection