PDF(Pubmed)
Abstract：
Copper and iron are the basic metal elements that have attracted much attention in industry. Prussian blue (PB) is a significant class of metal-organic frameworks (MOFs); however, the lack of such linkages between the structure and properties, as well as properties differences, limits their potential applications. In this paper, the Cu-based Prussian blue nanocubes with and without Fe doping were synthesized. With the increasing reaction time, the morphology of the Cu-based Prussian blue nanocubes without Fe doping (PB:Cu NCs) changes from cuboidal to circular, and finally grows back to cuboidal. However, Cu-based Prussian blue nanocubes with Fe doping (PB: CuFe NCs) grow directly from the cube and eventually collapse. The nanocubes show a notable red shift with the tunable spectra from 400 nm to 700 nm. Compared with PB: Cu NCs, the PB: CuFe NCs have higher temperature rise under 808 nm irradiation and better photothermal efficacy. The catalytic efficiency of PB: CuFe NCs changes with the pH and reaches its maximum value of 1.021 mM with a pH of 5.5. The enhanced catalytic reaction by the near-infrared radiation plasmonic photothermal effect is also confirmed. This work highlights the potential of the developed PB: Cu and PB: CuFe NCs for photothermal-enhanced co-catalysis nanomaterials.
摘要：
铜和铁是工业上备受关注的基本金属元素。普鲁士蓝(PB)是一类重要的金属有机骨架(MOFs)；然而，结构和性质之间缺乏这种联系，以及属性差异，限制了它们的潜在应用。在本文中,合成了掺杂和不掺杂Fe的Cu基普鲁士蓝纳米立方体。随着反应时间的增加,不掺杂Fe的铜基普鲁士蓝纳米立方体(PB:CuNCs)的形貌从长方体变为圆形,最后长回长方体.然而,具有Fe掺杂的Cu基普鲁士蓝纳米立方体(PB:CuFeNCs)直接从立方体生长并最终塌陷。纳米立方体显示出从400nm到700nm的可调谐光谱的显著红移。与PB：CuNCs相比，PB：CuFeNCs在808nm辐照下具有较高的温升和较好的光热效应。PB：CuFeNCs的催化效率随pH变化而变化，并在pH为5.5时达到其最大值1.021mM。还证实了近红外辐射等离子体光热效应增强的催化反应。这项工作强调了开发的PB：Cu和PB：CuFeNCs用于光热增强共催化纳米材料的潜力。
