2022
DOI: 10.1021/acs.iecr.2c02107
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Nanostructured TiO2/MCM-41-Functionalized PDMS as a Reactive Protective Barrier against Chemical Warfare Agents via Adsorption and Catalyzed Degradation

Abstract: Low permeability and self-decontamination are extremely desired features for protective equipment against chemical warfare agents (CWAs). ∼4 nm TiO 2 nanoparticles were synthesized in the porous matrix of MCM-41 (45 wt%) as a novel reactive adsorbent for the degradation of sarin and VX. TiO 2 /MCM-41 (∼520 m 2 /g) was embedded in a polydimethylsiloxane (PDMS) sheet. PDMS was chosen as a model for an air-impermeable barrier with high permeability to CWAs. The incorporation of the reactive adsorbent decreased th… Show more

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Cited by 5 publications
(30 citation statements)
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“…The surface area (520 m 2 /g) and pore volume (0.26 cm 3 /g) of the reactive adsorbent remained sufficiently high for adsorption and catalysis capabilities. The structural and textural properties of the TiO 2 /MCM adsorbent have been described in detail in our previous work [ 11 ].…”
Section: Resultsmentioning
confidence: 99%
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“…The surface area (520 m 2 /g) and pore volume (0.26 cm 3 /g) of the reactive adsorbent remained sufficiently high for adsorption and catalysis capabilities. The structural and textural properties of the TiO 2 /MCM adsorbent have been described in detail in our previous work [ 11 ].…”
Section: Resultsmentioning
confidence: 99%
“…First, MCM-41 mesoporous silica was modified by inducing a high loading (45 wt%) of nanostructured titanium dioxide (TiO 2 ) particles via the controlled hydrolysis of titanium butoxide and condensation within the pores of MCM-41. The preparation procedure of the TiO 2 /MCM catalysts is described in detail in our previous work [ 11 ].…”
Section: Methodsmentioning
confidence: 99%
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“…26 Ordered mesostructured silica (OMS), among them the high surface area MCM-41 and SBA-15, have an advantage as supports for TiO 2 NP catalysts/photocatalysts as they enable good dispersion of the active phase. 9,29,30 The high CWAs adsorption capacity within the support's pores concentrates the contaminants near the TiO 2 NPs for catalytic degradation.…”
Section: Introductionmentioning
confidence: 99%