Experimental analysis demonstrates 97% selectivity in detoxifying 2-chloroethyl ethyl sulfide using photocatalytic frameworks, highlighting their efficiency.
Two [Ru(bpy)3]2+ derivative-incorporated polyoxometalate-based metal-organic frameworks (POM@MOFs), {Cd(H2O)3Mn3(H2O)9[Ru(dcbpy)3][PMo11VIMoVO40]}·6H2O (Ru-CdMn-PMo) and {Cd(H2O)3Cu3(H2O)9[Ru(dcbpy)3][PMo11VIMoVO40]}·6H2O (Ru-CdCu-PMo), have been prepared through a conventional hydrothermal method. The introduction of Ru metalloligands enhanced the visible light absorption of POM@MOFs, and the photocatalytic detoxification reaction of mustard gas simulant 2-chloroethyl ethyl sulfide (CEES) confirmed their fascinating photocatalytic performances. Under visible light irradiation (λ > 400 nm), both Ru-CdMn-PMo and Ru-CdCu-PMo exhibited efficient photocatalytic properties for the detoxification of CEES into nontoxic CEESO in air, with a selectivity of 97% and a TOF of 26.6 min-1. Besides, Ru-CdMn-PMo also exhibited commendable reusability and stability after three reaction cycles. In addition, EPR measurements and radical scavenging experiments were carried out to verify the generation of O2•- and 1O2, presenting reliable evidence for the detoxification mechanism.
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Jing et al. (2025) studied this question.
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