International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal.
Center of Physics, University of Minho, Braga 4710-057, Portugal.
Dalton Trans. 2021 Nov 23;50(45):16819-16828. doi: 10.1039/d1dt03557f.
Environmentally friendly synthesis of Cu(In,Ga)Se (CIGS) nanoparticles (NPs) is pivotal for producing sustainable photocatalytic compounds to be applied in the remediation of contaminants of emerging concern from water. To this end, we herein report an aqueous synthesis of CIGS NPs, followed by annealing, to give access to phase-pure CIGS crystals with chalcopyrite structure and no signs of secondary phases. Morphological and compositional characterization revealed NPs with an average size of 10-35 nm and uniform distribution of Cu, In, Ga, and Se elements. In addition, the first aqueous large-scale synthesis of CIGS NPs is developed by up-scaling the synthesis procedure, resulting in 5 g of highly crystalline nanoparticles exhibiting an ideal optical band gap of 1.14 eV. The as-synthesized NPs proved the ability to remove 71 and 83% of a contaminant of emerging concern, ciprofloxacin (CIP), under ultraviolet (UV) and visible (Vis) radiations, respectively.
环保合成铜铟镓硒（CIGS）纳米颗粒（NPs）对于生产可持续的光催化化合物至关重要，可应用于从水中修复新兴污染物。为此，我们在此报告了一种 CIGS NPs 的水相合成方法，随后进行退火处理，以获得具有黄铜矿结构且没有第二相迹象的纯相 CIGS 晶体。形态和组成特性表明 NPs 的平均尺寸为 10-35nm，且 Cu、In、Ga 和 Se 元素分布均匀。此外，通过扩大合成工艺，首次开发了 CIGS NPs 的大规模水相合成，得到了 5g 高结晶度纳米颗粒，表现出理想的光学带隙为 1.14eV。所合成的 NPs 证明了在紫外线（UV）和可见光（Vis）辐射下分别能去除 71%和 83%的新兴污染物环丙沙星（CIP）。
