@misc{10481/90923,
year = {2023},
month = {12},
url = {https://hdl.handle.net/10481/90923},
abstract = {We have studied the formation of core–shell hybrid metal–organic framework@activated carbon sphere
(MOF@AC) adsorbents, by means of a layer-by-layer (LBL) growth method of MOFs on shaped AC
materials. The hybrid MOF@AC materials are useful for preventing the secondary emission problems of
chemical warfare agent protective filters. Mesopores on AC materials facilitate carbon surface oxidation
and a subsequent MOF growth, allowing Zr6O4(OH)4(benzene-1,4-dicarboxylate-2-X)6 (X = H, UiO-66; X
= NH2, UiO-66-NH2) thin film formation. By contrast, microporous spheres do not allow a significant
MOF layer growth. The MOF@AC hybrids are able to capture the G-type nerve agent surrogate,
diisopropylfluorophosphate (DIFP), and quantitatively hydrolyse a P–F bond, within 24 h at room
temperature, to yield non-toxic diisopropylphosphate (DIP) in unbuffered moist media. Neither the MOF
nor the carbon spheres alone can hydrolyse the model toxic compound to that extent. The enhanced
performance of the MOF@AC composites is attributed to a synergistic interplay of the hydrolytic
degradation of DIFP at the MOF layer and the physisorption of DIP at the carbon pore structure, allowing
the regeneration of the MOF catalytic sites.},
organization = {Spanish MCIN/AEI/10.13039/
501100011033 (Project PID2020-113608RB-I00; TED2021-
129886B-C41)},
organization = {Spanish MCIN/AEI/10.13039/
501100011033 by PRE2021-099867},
organization = {Grant
PRE2018-084220 funded by Spanish MCIN/AEI/10.13039/
501100011033 and FSE},
organization = {Plan Propio de
Investigación-Universidad de Granada for a predoctoral
fellowship},
organization = {Plan Propio de Investigación-
Universidad de Granada for a Visiting Scholar Grant},
organization = {Programa Juan de la Cierva Formación (FJC2020-
045043-I)},
publisher = {Royal Society of Chemistry},
title = {Zirconium-metal–organic framework@activated carbon composites for prevention of secondary emission of nerve agents},
doi = {10.1039/d3ta06108f},
author = {Perona, Cristina and Borrego Marin, Emilio and Delgado López, Pedro José and Vismara, Rebecca and Rodríguez Maldonado, Carmen and Barea Martínez, Elisa María and Bandosz, Teresa J. and Rodríguez Navarro, Jorge Andrés},
}