Covalent organic frameworks (COFs) are a class of organic crystalline porous materials discovered in the early 21st century that have become an attractive class of emerging materials due to their high crystallinity, intrinsic porosity, structural regularity, diverse functionality, design flexibility, and outstanding stability. However, many chemical and physical properties strongly depend on the presence of metal ions in materials for advanced applications, but metal-free COFs do not have these properties and are therefore excluded from such applications. Metalated COFs formed by combining COFs with metal ions, while retaining the advantages of COFs, have additional intriguing properties and applications, and have attracted considerable attention over the past decade. This review presents all aspects of metalated COFs, from synthetic strategies to various applications, in the hope of promoting the continued development of this young field.

Metalated covalent organic frameworks: from synthetic strategies to diverse applications.

Safety Issue on PCM-based Battery Thermal Management: Material Thermal Stability and System Hazard Mitigation

Porous carbon with uniformly distributed cobalt nanoparticles derived from ZIF-67 for efficient removal of vapor elemental mercury: A combined experimental and DFT study

Abstract Advanced porous nanomaterials such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and porous aromatic frameworks (PAFs) with high specific surface areas, abundant functional groups, accessible pore structures, tunable pore sizes, and easy modification are attractive as adsorbents for the capture of toxic heavy metal ions, organic pollutants, and radionuclides from aqueous solutions. This review first comprehensively introduces the attractive properties of MOFs, COFs, and PAFs to highlight their advantages as adsorbents. Subsequently, the recent progress of MOFs, COFs, and PAFs as superior adsorbents for the efficient removal of environmental pollutants is summarized. Furthermore, the influences of environmental conditions and information about the interaction mechanisms between pollutants and advanced porous nanomaterials are discussed. Finally, the applications and promising prospects of advanced porous nanomaterials in environmental pollution management are summarized. This review is beneficial to designing and fabricating advanced porous materials, which also provides some meaningful guidance for studying the adsorption mechanisms between porous materials and environmental pollutants. Graphical abstract

Advanced porous nanomaterials as superior adsorbents for environmental pollutants removal from aqueous solutions

In recent years, the number of patients diagnosed with cancer has been soaring. Therefore, the design, development, and implementation of new approaches for the diagnosis and therapy of different types of cancers have attracted an increasing amount of attention. To date, different methods have been used for cancer diagnosis and therapy with main drawbacks in terms of severe side effects, e.g., damage to healthy cells, development of drug resistance and tumor recurrence. Therefore, there is an urgent need for the introduction and application of innovative methods. Covalent organic frameworks (COFs) are versatile materials with excellent properties in terms of biocompatibility, porous and crystalline structure, and easy functionalization. The porous structure and organic monomers in COFs allow them to load different therapeutic drugs and/or functional species efficiently. These promising properties make COFs ideal candidates for medical application, especially in cancer diagnosis and therapy. To date, many studies have focused on the design and synthesis of novel COFs while their application as diagnostic and therapeutic materials remains less understood. In this review, different synthesis and functionalization approaches of COFs were summarized. In particular, cancer diagnosis and therapy based on COFs were investigated and the advantages and limitations of each method were discussed. Most importantly, the mechanism for cancer therapy of COFs and fundamental challenges and perspectives for the application of COFs in cancer theranostics were assessed.

Recent advances in covalent organic frameworks for cancer diagnosis and therapy.

Fabrication of Cu2S hollow nanocages with enhanced high-temperature adsorption activity and recyclability for elemental mercury capture

3D self-bonded porous graphite fiber monolith for phase change material composite with high thermal conductivity

The selective removal and recovery of silver ions from an aqueous solution is necessary, owing to the toxicity, persistency, and recoverable value. Herein, we first reported that silver ions could ...

Weiwei Li

Papers

Fabrication of Cu2S hollow nanocages with enhanced high-temperature adsorption activity and recyclability for elemental mercury capture

3D self-bonded porous graphite fiber monolith for phase change material composite with high thermal conductivity

Selective Reductive Removal of Silver Ions from Acidic Solutions by Redox-Active Covalent Organic Frameworks

Active surface RuO species originating from size-driving self-dispersion process for toluene catalytic combustion

Dual confinement strategy based on metal-organic frameworks to synthesize MnOx@ZrO2 catalysts for toluene catalytic oxidation