A novel CuO NPs/AgZSM-5 zeolite composite adsorbent: Synthesis, identification and its application for the removal of sulfur mustard agent simulant

Sadeghi, Meysam; Yekta, Sina; Mirzaei, Daryoush

doi:10.1016/j.jallcom.2018.03.239

Cited by 13 publications

(19 citation statements)

References 33 publications

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“…Meanwhile, the FTIR peaks corresponding to the C–H stretching of CEES impregnated in Na + @Y disappeared after identical vacuum treatment. The strong ambient adsorption of CEES by (Ag + ) 55 @Y originates from the prompt and effective chemical interaction via electrostatic interactions between the zeolite framework and the CEES intermediate . These two reasons may explain why Ag + @Y is an excellent adsorption material for CEES and thus for HD detoxification.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the development of suitable HD sorbent materials for decontamination applications is highly desired. One strong candidate is the MOF class of microporous materials, ,,− including zeolites, − because they are selective in their sorption capacities, nontoxic, abundant, and low in cost. Zeolitic frameworks are typically anionic, and charge-compensating cations populate the pores to maintain electrical neutrality of the material.…”

Section: Introductionmentioning

confidence: 99%

“…This report has clearly inferred that 2-CEPS was significantly removed by the Ag + ZSM-5/CuO composite with 100% yield under defined optimized conditions, which still demand longer reaction time (120 min) and a high adsorbent dose (0.3 g for CEPS:0.25 μL). In another example, Wagner et al used Na + @Y and silver-exchanged zeolite Y(Ag + @Y), which demonstrated potential as efficient detoxification material for HD using their simulants . They monitored the HD hydrolysis reaction by direct HD reagent introduction into Na + @Y and Ag + @Y using solid-state magic-angle spinning NMR.…”

Section: Introductionmentioning

confidence: 99%

“…From these studies, silver ions are expected to possess a strong affinity for the complexation of sulfur-containing CWAs. , Thus, the interactions of silver-exchanged zeolites with sulfur-containing agents HD are of interest. However, previous studies were not systematically conducted to check whether their approaches worked under realistic environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

“…In another example, Wagner et al used Na + @ Y and silver-exchanged zeolite Y(Ag + @Y), which demonstrated potential as efficient detoxification material for HD using their simulants. 20 They monitored the HD hydrolysis reaction by direct HD reagent introduction into Na + @Y and Ag + @Y using solid-state magic-angle spinning NMR. However, this study focused on the process of changing after adsorption and demonstrated that HD reacts faster on Na + @Y (via hydrolysis) than on Ag + @Y.…”

Section: ■ Introductionmentioning

confidence: 99%

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Rapid Capture and Hydrolysis of a Sulfur Mustard Gas in Silver-Ion-Exchanged Zeolite Y

Son

Kim

Ryu

et al. 2018

ACS Appl. Mater. Interfaces

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Sulfur mustard gas, also called HD, is one of the main chemical warfare agents and has claimed thousands of lives and left many more contaminated. The development of functional materials to promptly capture and detoxify sulfur mustard within a few minutes is extremely important to save the lives of the affected people. This has motivated us to explore excellent detoxification systems that can be deployed in the field to rapidly capture and hydrolyze mustard gas in a short time. To that end, we present a silver-ion-exchanged zeolite Y [(Ag+) n @Y, n = 5, 13, 21, 32, 43, and 55] that can rapidly capture mustard gas and its simulant (2-chloroethyl ethyl sulfide, CEES) in ambient conditions to enable the prompt hydrolysis of the CEES captured in its nanopores. The capture and hydrolysis ability of Ag+@Y positively correlated with its number of Ag+ ions. In addition, 70% of CEES (2.5 μL in 1 mL) was captured by (Ag+)55@Y within 20 min at 25 °C in ambient conditions. Moreover, 100% CEES (2.5 μL in 1 mL aqueous ethanol cosolvent) was hydrolyzed in 1 min at 25 °C. The efficiency of Ag+@Y in capturing and hydrolyzing CEES as well as mustard gas is thus a system with high detoxification efficiency for this dangerous chemical warfare agent.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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Rapid Capture and Hydrolysis of a Sulfur Mustard Gas in Silver-Ion-Exchanged Zeolite Y

Son

Kim

Ryu

et al. 2018

ACS Appl. Mater. Interfaces

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Enhanced early‐stage adsorption of chemical warfare agent simulant by MIL‐68‐(X%OH)

Lee,

Oh,

2023

Bulletin Korean Chem Soc

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The development of porous adsorbents for removing hazardous chemicals is of paramount significance in mitigating the risks posed by these substances. Among these hazardous chemicals, chemical warfare agents (CWAs) are of primary concern due to their significant threat. Here, we report the development of porous metal–organic framework‐based adsorbents designed to efficiently adsorb CWA simulant, particularly during the early stages of exposure. We selected MIL‐68, which has a rigid Kagomé structure, as a model system for investigating the adsorption of 2‐chloroethyl ethyl sulfide (CEES). The introduction of a dangling hydroxyl (OH) group within the MIL‐68 framework significantly enhances CEES adsorption during the early stages of exposure to CEES vapors. However, it is crucial to note that an excessive presence of dangling OH groups can negatively impact adsorption ability. Therefore, it is imperative to carefully control the amount of dangling OH groups introduced into the MIL‐68 framework to optimize CEES adsorption performance.

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Morphology‐Controlled Synthesis of CuO, CuO Rod/MWW Composite for Advanced Oxidation of Indole and Benzothiophene

et al. 2019

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Various morphologies of copper (II) oxide (CuO) such as dandelion, sea anemone, walnut, leaf, dendrite, rod, fiber, feather, and flake were synthesized and characterized by different methods. The oxidation of indole (IND) and benzothiophene (BT) in mild conditions was studied by various morphologies of CuO. Walnut with the lowest surface area 7.928 (m2g−1) and rod with a high surface area 41.237 (m2g−1) had efficiencies of 5.93% and 91.44% for IND and 0.53% and 88.29% for BT at 4 h, respectively. Zeolite MWW was synthesized by microwave and hydrothermal method on which CuO rod was loaded via wet impregnation method. The results indicated that CuO rod/MWW composite considerably outperformed CuO rod. The oxidations of IND and BT by CuO rod/MWW composite for 75 min was 99.99 and 97.67%, respectively. Based on the results across all experiments, the oxidation of the IND was higher than that of BT. CuO rod/MWW composite was shown to be an efficient catalyst for oxidation of nitrogen and sulfur heterocycles.

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A novel CuO NPs/AgZSM-5 zeolite composite adsorbent: Synthesis, identification and its application for the removal of sulfur mustard agent simulant

Cited by 13 publications

References 33 publications

Rapid Capture and Hydrolysis of a Sulfur Mustard Gas in Silver-Ion-Exchanged Zeolite Y

Rapid Capture and Hydrolysis of a Sulfur Mustard Gas in Silver-Ion-Exchanged Zeolite Y

Enhanced early‐stage adsorption of chemical warfare agent simulant by MIL‐68‐(X%OH)

Morphology‐Controlled Synthesis of CuO, CuO Rod/MWW Composite for Advanced Oxidation of Indole and Benzothiophene

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