Iron sulfide (FeS) nanoparticles have emerged as promising materials for a wide range of applications. Despite the growing interest, only conventional wet chemical synthesis approaches for FeS are prevalent, while alternate nontoxic green synthesis methods have not yet been explored. In this study, we demonstrate a novel green approach for the reduction of iron sulfate salt to iron sulfide nanoparticles using aqueous extracts from date tree (Phoenix dactylifera) seeds (ds-FeS nanoparticles). Detailed characterization techniques revealed the formation of spherical FeS nanoparticles with a mean nominal size of 68 nm, while spectroscopy studies confirmed the role of date seed phytochemicals in the synthesis and capping of ds-FeS. We also demonstrate the potential of using ds-FeS for water treatment by efficiently removing two different types of pollutants- ciprofloxacin (pharmaceutical) and hexavalent chromium (heavy metal). Results from this study maybe useful towards further exploration and optimization of eco-friendly synthesis routes for nanoscale iron sulfides.

硫化铁（FeS）纳米颗粒已成为有前景的材料，可用于广泛的应用中。尽管人们越来越感兴趣，但是仅常规的湿法化学合成FeS的方法是普遍的，而尚未探索替代的无毒绿色合成方法。在这项研究中，我们展示了一种新的绿色方法，该方法可使用枣树（Phoenix dactylifera）的水提物将硫酸铁盐还原为硫化铁纳米颗粒。）种子（ds-FeS纳米颗粒）。详细的表征技术揭示了球形FeS纳米颗粒的形成，其平均标称尺寸为68 nm，而光谱学研究证实了日期种子植物化学物质在ds-FeS合成和加帽中的作用。我们还展示了通过有效去除两种不同类型的污染物环丙沙星（药物）和六价铬（重金属）将ds-FeS用于水处理的潜力。这项研究的结果可能有助于进一步探索和优化纳米级硫化铁的生态友好合成路线。