Spontaneously super-hygroscopic MOF-gel microreactors for efficient detoxification of nerve agent simulant in atmospheric environments

Wang, Xuejiao; Yang, Jing; Zhang, Ming; Hu, Qian; Li, Baixue; Yu, Zhong‐Zhen

doi:10.1016/j.apcatb.2023.122516

Cited by 12 publications

(3 citation statements)

References 60 publications

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“…The properties of pure zirconium-based MOF gels and zirconium-based MOF composite gels for the degradation of these two CWAs and other simulants are summarized, as shown in Table 1, and details of the analysis are presented below. UiO-66-NH 2 @agarose hydrogels -DCP, vapors -atmospheric Catalytic hydrolysis [110] UiO-66-AM @PDMAEA@LiCl@PNIPAM aerogel 60 mg of UiO-66-AM loading, 12 mol% DMNP, 12.5 µmol 1.9 h atmospheric Catalytic hydrolysis [111] fibrous MOF-808 nanozyme aerogel "-" = not mentioned.…”

Section: Catalytic Detoxification Of Cwamentioning

confidence: 99%

“…To explore efficient catalysts for the destruction of nerve agents under atmospheric environments, a spontaneously super-hygroscopic MOF-gel microreactor was designed and synthesize by photoinduced integration of UiO-66-acrylamide (UiO-66-AM) and alkaline poly(dimethylaminoethyl acrylate) onto LiCl-salinized poly(N-isopropylacrylamide) gel. The resultant MOF@PDMAEA@LiCl@PNIPAM gel (MG) exhibits excellent catalytic performance for hydrolysis of DMNP with an initial half-life of ~1.9 h, and the final conversion is 95.5% [111]. The SA@UiO-66-NH 2 @PAMAM composite hydrogel synthesized by immobilizing UiO-66-NH 2 and PAMAM to the backbone of sodium alginate can rapidly degrade DMNP with a half-life as short as 7 min.…”

Section: Nerve Agents and Simulantsmentioning

confidence: 99%

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Metal–Organic Framework Gels for Adsorption and Catalytic Detoxification of Chemical Warfare Agents: A Review

Zhang,

Tao

2023

Gels

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Chemical warfare agents (CWAs) have brought great threats to human life and social stability, and it is critical to investigate protective materials. MOF (metal–organic framework) gels are a class with an extended MOF architecture that are mainly formed using metal–ligand coordination as an effective force to drive gelation, and these gels combine the unique characteristics of MOFs and organic gel materials. They have the advantages of a hierarchically porous structure, a large specific surface area, machinable block structures and rich metal active sites, which inherently meet the requirements for adsorption and catalytic detoxification of CWAs. A series of advances have been made in the adsorption and catalytic detoxification of MOF gels as chemical warfare agents; however, overall, they are still in their infancy. This review briefly introduces the latest advances in MOF gels, including pure MOF gels and MOF composite gels, and discusses the application of MOF gels in the adsorption and catalytic detoxification of CWAs. Meanwhile, the influence of microstructures (pore structures, metal active site, etc.) on the detoxification performance of protective materials is also discussed, which is of great significance in the exploration of high-efficiency protective materials. Finally, the review looks ahead to next priorities. Hopefully, this review can inspire more and more researchers to enrich the performance of MOF gels for applications in chemical protection and other purification and detoxification processes.

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Section: Catalytic Detoxification Of Cwamentioning

confidence: 99%

Section: Nerve Agents and Simulantsmentioning

confidence: 99%

Metal–Organic Framework Gels for Adsorption and Catalytic Detoxification of Chemical Warfare Agents: A Review

Zhang,

Tao

2023

Gels

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“…Microstructure characteristics are an important aspect of microreactors that considerably affect their catalytic efficiencies. Currently, the microstructures of different substrate materials can be classified as ordered − and disordered. − The reaction rate enhancement by ordered materials has been observed in various fields, including catalysis − and adsorption . For example, Chen et al constructed a highly ordered and interconnected three-dimensional ordered microchannel structure that regulated the mass transfer and surface reactions of the microreactor and improved the electrocatalytic reaction rate.…”

Section: Introductionmentioning

confidence: 99%

Continuous Fluid Catalytic Reactor Constructed Based on In Situ Growth of MOF Immobilized Enzyme on Ordered Silk Fabric

Wang,

Chen,

Zhou

et al. 2024

ACS Sustainable Chem. Eng.

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Enzyme catalysis applications are limited because of their poor stability under extreme conditions. Using metal−organic frameworks (MOFs) as enzyme immobilization carriers efficiently solves this problem. However, MOFs easily agglomerate, are difficult to recover as a crystalline powder, and can only be used under continuous stirring, resulting in low reaction efficiencies. The use of immobilized enzymes for continuous fluid catalysis to improve catalytic efficiency remains challenging. At the same time, the spatial division of most immobilized enzyme porous materials is disordered, which leads to poor mass transfer efficiency and consequently low reaction rates. In this context, we want to construct a new type of reactor that solves the problem of enzyme stability by encapsulating enzymes in MOFs and then using low-cost and easily available silk fabric materials as immobilized carriers to load MOF immobilized enzymes. The ordered structure of silk fabric enhances substrate mass transfer, thereby improving the catalytic efficiency of the reactor. By comparing the mass transfer of a continuous fluid catalytic reactor with ordered silk fiber immobilized enzyme (OSCR) with that of a continuous fluid catalytic reactor with disordered silk fiber immobilized enzyme (DSCR) using crystal violet adsorption and catalytic process simulations, we demonstrated that the reaction efficiency in ordered spaces can be improved through mass transfer within each partition space. Finally, the reactor was used in the biotransformation of polydatin and demonstrated a high conversion of 98%, which was much higher than that of DSCR. This study revealed the enormous potential of ordered structure enzyme reactors in continuous fluid catalysis.

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Enhancing the degradation efficiency of dimethyl nitrophenyl Phosphate, a chemical warfare agent Simulant, through acid sites in bimetallic Metal-Organic framework Ti-MOF-808(Zr): Synergistic roles of Lewis and Brønsted acids

Le,

Nguyen,

Dang

et al. 2024

Applied Surface Science

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Spontaneously super-hygroscopic MOF-gel microreactors for efficient detoxification of nerve agent simulant in atmospheric environments

Cited by 12 publications

References 60 publications

Metal–Organic Framework Gels for Adsorption and Catalytic Detoxification of Chemical Warfare Agents: A Review

Metal–Organic Framework Gels for Adsorption and Catalytic Detoxification of Chemical Warfare Agents: A Review

Continuous Fluid Catalytic Reactor Constructed Based on In Situ Growth of MOF Immobilized Enzyme on Ordered Silk Fabric

Enhancing the degradation efficiency of dimethyl nitrophenyl Phosphate, a chemical warfare agent Simulant, through acid sites in bimetallic Metal-Organic framework Ti-MOF-808(Zr): Synergistic roles of Lewis and Brønsted acids

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