Facile and scale-up syntheses of high-performance enzyme@meso-HOF biocatalysts.

Facile immobilization is essential for the wide application of enzymes in large-scale catalytic processes. However, exploration of suitable enzyme supports poses an unmet challenge, particularly in the context of scale-up biocatalyst fabrication. In this study, we present facile and scale-up syntheses of high-performance enzyme biocatalysts encapsulation of cytochrome c (Cyt-c) as mono-enzyme and glucose oxidase (GOx)-horseradish peroxidase (HRP) as dual-enzyme cascade (GOx&HRP) systems, respectively, into a stable mesoporous hydrogen-bonded organic framework (meso-HOF) matrix.

Scavenging Radionuclide by Shapeable Porous Materials.

Nuclear energy is a competitive and environmentally friendly low-carbon energy source. It is seen as an important avenue for satisfying energy demands, responding to the energy crisis, and mitigating global climate change. However, much attention has been paid to achieving the effective treatment of radionuclide ions produced in nuclear waste.

Selective perrhenate/pertechnetate removal by a MOF-based molecular trap.

A rational design of anion-exchange materials for the selective elimination of radioactive anionic contaminants poses a great challenge. Rather than relying on a size-compatible effect, the combination of a nano-sieve pore, hydrophobic cationic cavity, and soft-acidic open metal sites within one sorbent is an emerging strategy for meeting the requirement. Here, we designed a porous cationic Ag(I) metal-organic framework (MOF), TNU-132, which combined multiple features and showed superior perrhenate/pertechnetate capture selectivity in the presence of a large excess of 300-fold NO and 2000-fold SO.

Optimizing Strategy for Enhancing the Stability and TcO Sequestration of Poly(ionic liquids)@MOFs Composites.

Metal-organic frameworks (MOFs) are a class of promising sorbents for effective sequestration of radioactive TcO anions. However, their poor stability and slow sorption kinetics in the industrial condition pose a great challenge. Herein, we demonstrate an optimizing strategy via polymerization of ionic liquids (ILs) encapsulated in the pores of MOFs, forming polyILs@MOFs composites with greatly enhanced TcO sequestration compared with the pristine MOFs.