Progress in Hybridization of Covalent Organic Frameworks and Metal-Organic Frameworks.

Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) hybrid materials are a class of porous crystalline materials that integrate MOFs and COFs with hierarchical pore structures. As an emerging porous frame material platform, MOF/COF hybrid materials have attracted tremendous attention, and the field is advancing rapidly and extending into more diverse fields. Extensive studies have shown that a broad variety of MOF/COF hybrid materials with different structures and specific properties can be synthesized from diverse building blocks via different chemical reactions, driving the rapid growth of the field.

Electronic Metal-Support Interaction Directing the Design of Fe(III)-Based Catalysts for Efficient Advanced Oxidation Processes by Dual Reaction Paths.

Persistent organic pollutants (POPs) have a huge impact on human health due to their high toxicity and non-degradability. It is still of great difficulty to develop highly efficient catalysts toward the degradation of POPs. Herein, it is reported that regulating electronic structure of quasi-single atomic ferric iron (Fe(III)) in the VO support through the electronic metal-support interaction (EMSI) is a versatile strategy to enhance the catalytic activity.

Synergistic Effect Improves the Response of Active Sites to Target Variations for Picomolar Detection of Silver Ions.

Heavy metal ions seriously threaten human health; even a trace of them can damage the renal, nervous, and immune systems irreversibly. Although established nanozyme-based colorimetric assays have been designed for the rapid detection of heavy metal ions, the general contained surface organic ligands of nanocatalysts and low absorptivity of metal ions on solid substrates might result in a weak effect on active sites and prevent the realization of their full detection potential. Here, we developed a nanozyme-based colorimetric sensor (CPM-Pt) made by pyrolysis of peat moss with preabsorbed traces of Pt ions to ultrasensitively detect Ag.

Confining Metal-Organic Framework in the Pore of Covalent Organic Framework: A Microscale Z-Scheme System for Boosting Photocatalytic Performance.

The search for building hierarchical porous materials with accelerated photo-induced electrons and charge-carrier separation is important because they hold great promise for applications in various fields. Here, a facile strategy of confining metal-organic framework (MOF) in the 1D channel of the 2D covalent organic framework (COF) to construct a novel COF@MOF micro/nanopore network is proposed. Specifically, a nitrogen-riched COF (TTA-BPDA-COF) is chosen as the platform for in-situ growth of a Co-based MOF (ZIF-L-Co) to form a TTA-BPDA-COF@ZIF-L-Co hybrid material.

Iron regulates the interfacial charge distribution of transition metal phosphides for enhanced oxygen evolution reaction.

Using earth abundant elements to develop oxygen evolution reaction (OER) electrocatalysts presents one of the most promising strategies to generate clean and renewable energy systems to deal with the ever-growing energy crisis. The challenge comes as how to rationally design the chemical composition and nanostructure to increase the OER efficiency. In this work, we demonstrated an operational ion strategy to improve OER performances of iron cobalt bimetallic phosphide (FeCo-P), which was fabricated by simultaneous annealing and phosphating metal organic framework (MOF) precursors.

Signal Amplification Strategy Using Atomically Gold-Supported VO Nanobelts as a Co-reaction Accelerator for Ultrasensitive Electrochemiluminescent Sensor Construction Based on the Resonance Energy Transfer Platform.

Luminol, as a classical luminophore, plays a crucial role in electrochemiluminescence (ECL). However, the traditional luminol-HO ECL system suffers from the self-decomposition of HO at ambient temperature, which hinders its further application in quantitative analysis. In this work, for the first time, we developed atomically gold-supported two-dimensional VO nanobelts (Au/VO) as an advanced co-reaction promoter to speed up the reduction of dissolved oxygen to superoxide radicals (O), which react with the luminol anion radical and greatly promote the ECL emission.

Tailoring the Electronic Metal-Support Interactions in Supported Atomically Dispersed Gold Catalysts for Efficient Fenton-like Reaction.

The atomically dispersed metal is expected as one of the most promising Fenton-like catalysts for the degradation of recalcitrant organic pollutants (ROPs) by the strong "electronic metal-support interactions" (EMSIs). Here, we develop an atomically dispersed metal-atom alloy made by guest Au atoms substitute host V atoms in the two-dimensional VO (B) nanobelt support (Au/VO ) to activate Fenton-like oxidation for elimination of ROPs. The 2D nanobelt structure enlarges the exposure of atomically Au thus increasing the number of active sites to absorb more S O ions.