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首页> 外文期刊>RSC Advances >Graphdiyne bearing pillar[5]arene-reduced Au nanoparticles for enhanced catalytic performance towards the reduction of 4-nitrophenol and methylene blue
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Graphdiyne bearing pillar[5]arene-reduced Au nanoparticles for enhanced catalytic performance towards the reduction of 4-nitrophenol and methylene blue

机译：Graphdiyne轴承柱[5]芳烃还原的Au纳米颗粒，用于增强催化性能，达到4-硝基苯酚和亚甲基蓝色

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Graphdiyne (GD), a novel two dimensional (2D) carbon material, has earned a lot of attention in recent years. Constructing a novel hybrid nanomaterial based on GD, macrocyclic host and Au nanoparticles is an effective strategy for heterogeneous catalysis applications. While tremendous advancements in the preparation of two dimensional (2D) materials anchoring Au nanoparticles have been made, it is an urgent requirement to explore a green, efficient and facile approach for obtaining small-sized Au nanoparticles. The use of the 2D material graphdiyne (GD) presents more-promising candidates for constructing excellent sites for loading metal nanoparticles. In this study, a novel 2D heterogeneous hybrid nanomaterial (P5A-Au-GD) based on GD and pillar[5]arene (P5A)-reduced Au nanoparticles (P5A-Au) was successfully prepared. In this strategy, the P5A can reduce HAuCl _(4) with the aid of NaOH in the dispersion of GD. Accordingly, the generated P5A-Au can immediately interact with GD to form the P5A-Au-GD hybrid nanomaterial without any harsh reduced materials or other energies. The Au nanoparticles with average diameter of 2–3 nm are homogeneously dispersed on the surface of GD. The heterogeneous 2D catalyst of P5A-Au-GD shows high catalytic performances in the reduction of 4-nitrophenol and methylene blue by comparing commercial Pd/C catalyst. Meanwhile, the unique 2D heterogeneous hybrid material P5A-Au-GD exhibits durable recyclability and stability during the catalytic reaction. Considering the outstanding merits of the heterogeneous 2D catalyst of P5A-Au-GD as well as the simple and green preparation, this study might not only present enormous opportunities for the stabilized, high-performance and sustainable catalysts but also be applied in other frontier studies of sustainable functionalized nanocomposites and advanced materials.
机译：Graphdiyne（GD），一种新型二维（2D）碳材料，近年来赢得了很多关注。构建基于GD，大环宿主和Au纳米颗粒的新型杂交纳米材料是用于异质催化应用的有效策略。虽然已经进行了锚固Au纳米颗粒的二维（2D）材料的制备的巨大进步，但探讨了获得小型Au纳米颗粒的绿色，有效和容易的方法是迫切要求的。使用2D材料Graphdiyne（GD）呈现更有希望的候选物，用于构建用于装载金属纳米颗粒的优异部位。在该研究中，基于GD和柱子[5]芳烃（P5A） - REDUED的AU纳米颗粒（P5A-AU）的新型2D非均相杂化纳米材料（P5A-AU-GD）成功地制备了（P5A-Au）。在这种策略中，P5A可以在GD的分散中借助于NaOH减少Haucl _（4）。因此，所产生的P5A-Au可以立即与GD相互作用以形成P5A-Au-Gd杂交纳米材料，而无需任何苛刻的材料或其他能量。平均直径为2-3nm的Au纳米颗粒在Gd的表面上均匀分散。通过比较商业Pd / C催化剂，P5A-Au-Gd的非均相2D催化剂显示出4-硝基苯酚和亚甲基蓝的高催化性能。同时，独特的2D非均相杂化材料P5A-AU-GD在催化反应期间表现出耐用的再循环性和稳定性。考虑到P5A-AU-GD的异质2D催化剂的优点以及简单和绿色的制剂，本研究不仅可能为稳定，高性能和可持续的催化剂提供巨大的机会，而且还适用于其他前沿研究可持续官能化纳米复合材料和先进材料。

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