ArticleNanoscale advances2026
One minute ultrasound-assisted gold and platinum-decorated ZnO photocatalyst for ibuprofen degradation.
Article in Nanoscale advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The occurrence of ibuprofen in surface and wastewater is an emerging environmental concern due to its incomplete removal in conventional water treatment systems. In this work, ZnO-based hybrid photocatalysts decorated with noble metal nanoparticles (ZnO@Au and ZnO@Pt) were prepared through an ultrasound-assisted functionalization of preformed ZnO microstructures and evaluated for the photocatalytic degradation of ibuprofen in water. Structural, morphological, and optical characterization confirmed that the noble metal decoration preserved the wurtzite ZnO structure and the flower-like nanosheet morphology, while producing negligible changes in the optical band gap. Noble metal decoration significantly enhanced the photocatalytic activity of ZnO, with ZnO@Pt exhibiting the highest degradation efficiency under UV irradiation. After 90 min, ZnO@Pt achieved 90.2% ibuprofen degradation, compared with 36.1% and 8.9% for ZnO@Au and pristine ZnO, respectively. In addition, ZnO@Pt showed an apparent pseudo-first-order rate constant on the order of 10
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