Abstract
Thiourea-bridged organosiloxane is used to synthesize a periodic mesoporous organosilica (PMO). Since this PMO has an S-enriched surface, owing to thiourea functional groups, it exhibits strong coordination toward Pt ions, and it shows a high tunability in the Pt nanoparticles size. This hybrid mesoporous material is employed as a catalyst in the efficient reduction reaction of 4-nitrophenol to 4-aminophenol at room temperature in an aqueous media.
Highlights
Rapid industrialization and the release of pollutants are an overwhelming threat for green spaces and sustainable nature [1,2,3,4,5,6]
periodic mesoporous organosilica (PMO)-TU in the presence of a triblock copolymer, P123 (poly(ethylene block-poly(propylene glycol)-block-poly(ethylene glycol)), and employed it as unique support for glycol)-block-poly(propylene glycol)),these andmaterials employed as unique support the synthesis of sub-2glycol)-block-poly(ethylene nm Pt nanoparticles
We examined the reaction solution after three cycles by atomic adsorption spectroscopy (AAS) and the it shows that the leaching of Pt from PMO-TU
Summary
Rapid industrialization and the release of pollutants are an overwhelming threat for green spaces and sustainable nature [1,2,3,4,5,6]. One of the most common organic classes of pollutants in industrial wastewaters is nitroaromatics. These are assumed to be toxic materials since they can damage kidney and liver in humans [7,8,9]. These compounds are being widely investigated to solve this issue. Many processes have been developed for 4-NP removal by reducing it to amino form or degradation with strong (photo)catalytic degradation methods. Catalytic reduction of 4-NP to p-aminophenol (p-AP) is an effective removal approach of
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