Hyper-cross-linked Polymer Loaded with Ptru-mos2 for Ammonia Detection
Ponticorvo, Eleonora
Castaldo, Rachele
Gentile, Gennaro
Sarno, Maria
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Ponticorvo E., Castaldo R., Gentile G., Sarno M., 2020, Hyper-cross-linked Polymer Loaded with Ptru-mos2 for Ammonia Detection, Chemical Engineering Transactions, 79, 463-468.
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Here we report the performance in ammonia detection of polystyrene-based hyper-cross-linked polymer (HCLP) synthesized with a new synthetic route. The resin loaded with PtRu nano-alloy covered by MoS2 nanosheets, prepared according to a “wet chemistry” approach, was broadly characterized: TEM images and XRD spectra showed the formation of nanoparticles with a few nanometers size partially covered by MoS2 layers. The sample was tested as an electrochemical sensor for the detection of small traces of NH3 in aqueous solutions with a limit of detection (LOD) of 4.5 µM. The sensor was tested also in simulated wastewater coming from the fertilizer industry, showing proper operation and excellent selectivity.
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