2023年3月8日 · Herein, we report a series of isostructural porphyrin-based COFs loaded with Au single atoms (COFX–Au, X = 1–5) for photocatalytic N 2 fixation. The porphyrin building blocks act as the docking sites to immobilize Au single atoms as well as light-harvesting antennae.

2023年1月1日 · COFs are emerging crystalline porous polymers that are highly ordered with tunable pore size and pore volume, structural predictability, high thermal stability, and chemical resistance. Their nitrogen and oxygen richness strengthen the interaction of NPs on the surface.

2024年7月9日 · Au@Ag core–shell composites were successfully fabricated on urchin-like covalent organic frameworks (COFs), providing a platform with numerous hot spots for the detection of two categories of emerging contaminants: sulfonamide antibiotics and nanoplastics, using surface-enhanced Raman spectroscopy (SERS).

2020年3月6日 · 基于au@cof对罗丹明b的高效吸附能力和增强的光催化活性，作者研究了 au@cof对水中双酚a (bpa)的降解能力 。研究发现约98.44%的bpa在黑暗中30 min后被捕获，当bpa被吸附到饱和状态时，超过90%的bpa可以在30分钟内被au@cof降解。

2024年5月1日 · In this work, a two-dimensional (2D) COFs (termed as Tz-COF) with high crystallinity, excellent chemical stability, and abundant sulfur coordination in its skeletons was synthesized and used for the confined growth of Au NPs. It was found that the Au NPs showed significant dispersibility for the support of Tz-COF.

2019年10月25日 · The fully encapsulated Au nanoparticles within COFs give a promising opportunity to exploit the SERS capabilities of the Au nanoparticles and their assemblies as embedded probes for detection...

Photocatalysts have the potential to convert sunlight into chemical energy carriers. In this respect, covalent organic frameworks (COFs) have shown great promise due to their tunable structure on different length scales, high surface areas, and beneficial optical properties such as …

通过将1,2-二硫醇的巯基“click”反应合成含硫共价有机骨架(S-COF)，作为载体负载Au NPs。 此外,获得的S-COF负载Au NPs (Au-S-COF)粒子分布极其窄(4.2 ±1.2 nm)，对硝基苯酚表现出良好的还原催化活性以及催化稳定性。

2025年3月30日 · Covalent organic frameworks (COFs) are porous crystalline materials obtained by linking organic ligands covalently. Their high surface area and adjustable pore sizes make them ideal for a range of applications, including CO2 capture, CH4 storage, gas separation, catalysis, etc. Traditional methods of material research, which mainly rely on manual experimentation, are not particularly efficient ...

1 天前 · The latest body of research on separating metals (e.g., Li, K, Sr, Hg, Cd, Pb, Cr, Au, Ag, Pd, and U) using COF-based adsorbents is discussed to understand the factors that influence their ...