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Synergistic Acid-Base Action Leads to Ultrafast Decontamination of Nerve and Blister Agents by OH Intercalated Zr-Doped MgAl-LDH under Ambient Conditions.
Adv Mater
December 2024
Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, P. R. China.
Developing materials capable of rapidly decontaminating nerve and blister agents directly under ambient conditions are crucial for practical applications. In this work, MgAl Zr-LDH with different Zr doping contents and corresponding OH intercalated materials MgAl Zr-LDH-OH are synthesized. First, they are used for the decontamination of nerve agents under ambient conditions, showing that increasing the Zr doping amount accelerates the decontamination rate of diethyl cyanophosphonate (DECP) and soman (GD), with the half-life of DECP and GD being 3-5 times shorter with MgAlZr-LDH (the highest Zr doping content) compared to MgAl-LDH.
View Article and Find Full Text PDFSynthesis of a trinuclear zinc(II) cluster composed of [4.4.3.0]tridecane cages: a rapid detection and degradation probe for the chemical warfare agent simulant diethyl cyanophosphonate in protein-rich food products.
Analyst
May 2023
Department of Zoology, Panjab University, Sector-14, Chandigarh-160014, India.
Article Synopsis
- Diethyl cyanophosphonate (DCNP) is a dangerous pollutant found in pharmaceutical waste that poses risks to living organisms, and a new trinuclear zinc(II) cluster has been developed to selectively detect and degrade it.
- The cluster's unique structure includes two pentacoordinated and one hexacoordinated Zn(II) units, and its effectiveness is enhanced by chelation-induced fluorescence, allowing it to detect DCNP at low concentrations (186 nM).
- The probe's capabilities were verified through various advanced techniques and tested in real-world applications, including bio-imaging of zebrafish larvae and detection in food products and air samples.
A Versatile Self-Detoxifying Material Based on Immobilized Polyoxoniobate for Decontamination of Chemical Warfare Agent Simulants.
Chemistry
December 2018
Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
A decontaminating composite, Mg Al-LDH-Nb , has been successfully prepared by immobilizing Lindqvist [H Nb O ] (Nb ) into a Mg Al-based layered double hydroxide (Mg Al-LDH). To our knowledge, this represents the first successful approach to the immobilization of polyoxoniobate. As a versatile catalyst, Mg Al-LDH-Nb can effectively catalyze the degradation of both vesicant and nerve agent simulants by multiple pathways under mild conditions.
View Article and Find Full Text PDFRegioselective synthesis of isoxazole and 1,2,4-oxadiazole-derived phosphonates via [3 + 2] cycloaddition.
Org Biomol Chem
December 2018
Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine.
The results of the study on reactions of halogenoximes bearing (protected) functional groups or fluorinated substituents with various phosphorus-containing dipolarophiles are described. To control the regioselectivity of the reaction, vinylphosphonates bearing a leaving group (i.e.
View Article and Find Full Text PDFRecoverable amphiphilic polyoxoniobates catalyzing oxidative and hydrolytic decontamination of chemical warfare agent simulants in emulsion.
J Hazard Mater
February 2018
Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, PR China; Beijing Key Laboratory of Photoelectronic/Electrophotonic, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, PR China. Electronic address:
Amphiphilic polyoxoniobates (PONbs), [CHN(CH)]HNbO (for 1, n=14; for 2, n=16; and for 3, n=18), were successfully prepared by the electrostatic interaction of hexaniobate anions with quaternary ammoniums containing long alkyl chain, and thoroughly characterized by using various techniques including Fourier transform infrared (FT-IR), H nuclear magnetic resonance (H NMR), C nuclear magnetic resonance (C NMR), thermogravimetric analysis (TGA), and elemental analysis. All three PONbs were used in the emulsion systems to catalytically decontaminate chemical warfare agent simulants and the influences of quaternary ammonium cations, polyanions, and amount of catalyst on the catalytic efficiency have been evaluated. Under optimal conditions, catalyst 3 in emulsion can completely convert both a the nerve agent simulant, diethyl cyanophosphonate (DECP), in 2h by hydrolysis and a sulfur mustard simulant, 2-chloroethyl ethyl sulfide (CEES), in 20min by oxidation using nearly stoichiometric 3% aqueous HO.
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