Vanadium disulfide nanosheets based membrane for filter application

Abstract

BackgroundSurface and groundwater resources are being significantly contaminated by organic pollutants, particularly diverse organic dyes released by the textile industry, thereby posing a considerable threat to aquatic ecosystems. Methodswe describe the development of a vanadium disulfide (VS2) membrane using a simple vacuum-assisted filtration method. Significant findingsIt demonstrated impressive rejection rates for 10 ppm methylene blue (MB) solutions (92.5 %, 95.3 %, and 96.8 %) and 10 ppm methylene violet (MV) solutions (96.1 %, 97.3 %, and 98.1 %). These notable outcomes are credited to the pivotal role of the layered structure of the VS2 membrane, with thicknesses of ∼44 μm, 56 μm, and 68 μm, respectively. The water flux of these membranes exhibited a range of ∼1300, 1350, and 1400 L m−2 h−1 for the MB solution. For the MV solution, the water flux ranged around ∼1100, 1150, and 1200 L m−2 h−1. Further, it highlights the efficient filtration performance of these membranes for both MB and MV solutions. The membrane's highly efficient separation performance not only holds promise for various filtration applications but also establishes it as an innovative and effective solution in the continuous global endeavors to address water pollution.