Cercetătorii produc țesături inteligente pentru a neutraliza gazul nervos (Researchers produce smart fabric to neutralize nerve gas )

Țesătura constă dintr-un suport de bumbac modificat cu compozite cu nitruri de carbon cu oxid de carbon-BTC MOF / oxidată. Acestea din urmă au fost dezvoltate anterior în laborator și testate ca medii de detoxifiere a agenților nervoși și detectori colorimetrici.
Combinarea Cu-BTC și gC 3 N 4 -ox a condus la un nanocompozit (MOFgCNo x ) de porozitate și chimie eterogene. După depunerea MOFgCNo x pe textilele de bumbac, a fost obținută o țesătură stabilă cu abilitate supremă de detoxifiere fotocatalitică față de surogatul gazului nervos, dimetil clorofosfat.

Posted: Aug 16, 2017

Researchers produce smart fabric to neutralize nerve gas

(Nanowerk News) From the lab of City College of New York chemical engineer and Fulbright Scholar Teresa J. Bandosz comes a groundbreaking development with the potential to thwart chemical warfare agents: smart textiles with the ability to rapidly detect and neutralize nerve gas (Nanoscale Horizons, „Smart textiles of MOF/g-C3N4 nanospheres for the rapid detection/detoxification of chemical warfare agents”).
The fabric consists of a cotton support modified with Cu-BTC MOF/oxidized graphitic carbon nitride composites. The latter were developed in the lab previously and tested as nerve agent detoxification media and colorimetric detectors.
Combining Cu-BTC and g-C3N4-ox resulted in a nanocomposite (MOFgCNox) of heterogeneous porosity and chemistry. Upon the deposition of MOFgCNox onto cotton textiles, a stable fabric with supreme photocatalytic detoxification ability towards the nerve gas surrogate, dimethyl chlorophosphate, was obtained.
The detoxification process was accompanied by a visible and gradual color change, which Bandosz said can be used for the selective detection of chemical warfare agents and for monitoring their penetration inside a protective layer.
„These smart textiles adsorbed almost 7g of CWA surrogate/its detoxification products per gram of Cu. The superior performance was linked to the high dispersion of the MOF crystals on the fibers, and a specific texture promoting the availability of the active copper centers,” said Bandosz, who is seeking funding for additional research.
Source: City College of New York

Read more: Researchers produce smart fabric to neutralize nerve gas