Abstract
Arsenic contamination in drinking water is a global health concern due to its extreme toxicity. This study explores the efficacy of PWN-type zeolite membranes in selectively removing dissolved arsenic ions. Molecular dynamics simulations analyze the permeation of aqueous arsenic solutions through the zeolite membrane under pressure-driven flow (5 to 600 MPa over 5 ns). The goal is to assess PWN-type zeolites as nanofiltration membranes for arsenic removal. The zeolite's nanoporous structure immobilizes arsenic ions while permitting water transport. Remarkably, the membrane exhibits high ion rejection, even at pressures up to 600 MPa. These findings underscore the potential of PWN-type zeolite membranes for separating As (III) ions from water supplies. With ultra-high porosity and selectivity, these nanoengineered membranes enable effective mechanical filtration processes for arsenic removal. In summary, this theoretical investigation highlights the significant promise of PWN-type zeolites as high-performance membranes for arsenic decontamination, crucial for safeguarding human health.
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