Degradation of sulfur mustard and 2-chloroethyl ethyl sulfide on Cu–BTC metal organic framework

Roy, Anuradha; Srivastava, Avanish Kumar; Singh, Beer; Mahato, T.H.; Shah, Dilip; Halve, Anand K.

doi:10.1016/j.micromeso.2012.06.011

Cited by 61 publications

(46 citation statements)

References 33 publications

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“…Therefore, the development of effective materials for 2-CEES removal can contribute to environmental protection from sulfur compounds as well as the decontamination of chemical warfare agents. Various materials, such as activated carbon-based materials [19], metal organic frameworks [20], and metal oxides [4,[21][22][23][24][25][26], have been presented as effective materials for destructive sorption of 2-CEES in the liquid phase of a batch reactor. However, it has been pointed out that the vapor capture is a critical problem in many practical cases due to its fast vaporization into the atmosphere [3].…”

Section: Introductionmentioning

confidence: 99%

Mesoporous magnesium oxide and its composites: Preparation, characterization, and removal of 2-chloroethyl ethyl sulfide

Jiang

et al. 2015

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Mesoporous magnesium oxide and its composites: Preparation, characterization, and removal of 2-chloroethyl ethyl sulfide

Jiang

et al. 2015

Chemical Engineering Journal

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“…[1,2] Indeed, the suitability of the established [Cu 3 (btc) 2 ]( btc = benzene-1,3,5-tricarboxylate) system has been studied in the capture and degradation of CWAs, [4][5][6][7] however, the results show ap oor performance related to its limited stability to hydrolysis. [1,2] Indeed, the suitability of the established [Cu 3 (btc) 2 ]( btc = benzene-1,3,5-tricarboxylate) system has been studied in the capture and degradation of CWAs, [4][5][6][7] however, the results show ap oor performance related to its limited stability to hydrolysis.…”

mentioning

confidence: 99%

“…Taking into account all the above,w ep roceeded to modulate the catalytic activity of both defect-free UiO-66, [10] and missing-linker-defect [Zr 6 O 4 (AcO) 6 (bdc) 5 ][ UiO-66@AcO] [13] by means of the introduction of acidic Brønsted sites in [Zr 6 O 4 (AcO) 4 (bdc) 5 . Taking into account all the above,w ep roceeded to modulate the catalytic activity of both defect-free UiO-66, [10] and missing-linker-defect [Zr 6 O 4 (AcO) 6 (bdc) 5 ][ UiO-66@AcO] [13] by means of the introduction of acidic Brønsted sites in [Zr 6 O 4 (AcO) 4 (bdc) 5 .…”

mentioning

confidence: 99%

Textile/Metal–Organic‐Framework Composites as Self‐Detoxifying Filters for Chemical‐Warfare Agents

et al. 2015

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The current technology of air-filtration materials for protection against highly toxic chemicals, that is, chemical-warfare agents, is mainly based on the broad and effective adsorptive properties of hydrophobic activated carbons. However, adsorption does not prevent these materials from behaving as secondary emitters once they are contaminated. Thus, the development of efficient self-cleaning filters is of high interest. Herein, we report how we can take advantage of the improved phosphotriesterase catalytic activity of lithium alkoxide doped zirconium(IV) metal-organic framework (MOF) materials to develop advanced self-detoxifying adsorbents of chemical-warfare agents containing hydrolysable P-F, P-O, and C-Cl bonds. Moreover, we also show that it is possible to integrate these materials onto textiles, thereby combining air-permeation properties of the textiles with the self-detoxifying properties of the MOF material.

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“…1 The sulfonium ion is very unstable and in the presence of water it hydrolyzes to hydroxyethyl sulde. It has been reported that CEES can form a transient sulfonium cation as a result of the nucleophilic attack of sulde onto the electrophilic carbon adjacent to Cl.…”

Section: Sample Namementioning

confidence: 99%

“…1 Studies on its detoxication mechanisms can bring a signicant input to comprehend the actual chemical warfare agent detoxication. 2-Chloroethyl ethyl sulde (CEES) is a surrogate of the chemical warfare agent sulfur mustard: bis(2-chloroethyl sulde).…”

Section: Introductionmentioning

confidence: 99%

Reactive adsorption of CEES on iron oxyhydroxide/(N-)graphite oxide composites under visible light exposure

2015

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The interactions of 2-chloroethyl ethyl sulfide (CEES) with the surface of iron oxyhydroxide and its composites with graphite oxide and/or aminated graphite oxide were studied under visible light irradiation. Materials exposed to CEES were extensively characterized by FTIR-STR, UV-VIS-NIR, and TA-MS. The gaseous/vaporous reaction products were identified by GC-MS. The compounds deposited on the surface of the materials were analyzed in acetonitrile extracts by NMR and MS-MS. The FTIR results indicated the existence of alcohol groups on the surface of the exhausted samples and the involvement of OH groups in the CEES reactive adsorption. Ethyl vinyl sulfide (EVS) was the only volatile compound detected as a result of the reaction with the surface. Two adsorption sites for either CEES or EVS were identified on the adsorbent surfaces. As a result of CEES reactive adsorption Fe(III) was reduced, which indicates its crucial role in the oxidation of CEES and EVS. On the composites, the detection of disulfides as products of advanced oxidation of CEES suggests the activation of thiyl and oxygen radicals. This indicates that the incorporation of GO and GOU into iron oxyhydroxides strongly increases the oxidation potential of oxyhydroxides and induces the formation of radicals. The main promoters of CEES transformation are proposed to be OH groups and thiyl radicals.

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Degradation of sulfur mustard and 2-chloroethyl ethyl sulfide on Cu–BTC metal organic framework

Cited by 61 publications

References 33 publications

Mesoporous magnesium oxide and its composites: Preparation, characterization, and removal of 2-chloroethyl ethyl sulfide

Mesoporous magnesium oxide and its composites: Preparation, characterization, and removal of 2-chloroethyl ethyl sulfide

Textile/Metal–Organic‐Framework Composites as Self‐Detoxifying Filters for Chemical‐Warfare Agents

Reactive adsorption of CEES on iron oxyhydroxide/(N-)graphite oxide composites under visible light exposure

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