Dataset for Sulfidation of air-stable iron nanoparticles: A novel strategy how to boost their reactivity demonstrated on Cr(VI) reduction

This repository contains data from the manuscript: Víchová, V., Oborná, J. K., Petr, M., Soukupová, J., Pechancová, R., Pluháček, T., & Filip, J. (2024). Sulfidation of air-stable iron nanoparticles: A novel strategy how to boost their reactivity demonstrated on Cr (VI) reduction. Journal of Water Process Engineering, 67, 106246. https://doi.org/10.1016/j.jwpe.2024.106246 Abstract of the manuscript: Sulfidated zero-valent iron nanoparticles (S-nZVI) have been extensively studied as environmentally promisingalternative material, which enables reduction of variety of extremely dangerous pollutants directly in theenvironment. However, synthesis and manipulation with these extremely reactive/pyrophoric nZVI particlesrepresents a challenge and requires special precautions. In this study, we report a synthesis of S-nZVI from airstablecore-shell nZVI, which reactivity with contaminants and properties are comparable with the commonlyprepared S-nZVI particles (where the precursor was bare/pyrophoric nZVI particles). The undeniable noveltydwells in the simplicity of the synthetic process, which ensures consequential safe and easy handling, manipulation,and application of S-nZVI particles. This material, especially highly effective against halogenated organiccompounds and heavy metals, was characterized in detail and its advanced characteristics were evaluated in theprocess of hexavalent chromium (Cr(VI)) reduction from model aqueous solutions and polluted groundwater.The results offer valuable insights into the preparation of a novel nanomaterial with high application potential inthe effective degradation of heavy metals in polluted water. Overall, the novel way prepared S-nZVI particles,designed for the potential large-scale production, eliminates the drawbacks of S-nZVI synthesized from bare nZVIparticles and offers the effective material suitable for any on-site application.