Publications by authors named "A Kukovecz"
Article Synopsis
- Barium titanate photocatalysts were created using a low-cost sol-gel method with a specific calcination technique involving rapid heating; they were analyzed using several characterization techniques.
- The photocatalysts demonstrated low photooxidation activity for degrading pollutants like phenol and chlorophenol but exhibited high photoreduction activity for CO conversion, outperforming commercial references.
- The unique calcination method proved to be 29.5% more cost-effective than traditional techniques and allowed for a larger yield of barium titanate with the same energy input.
Desilication products (DSPs) are one of the main components of bauxite residue, which is currently discharged without further usage. The present study reports on the use of DSPs as adsorbents for basic fuchsine dye. Using artificial spent liquor, we synthesized not only neat DSP but also solids in the presence of various organics, to account for their likely occurrence during the Bayer process.
View Article and Find Full Text PDFSurface modification, including the anchoring of functional groups is a popular method to increase the photocatalytic activity of semiconductor photocatalysts. These species can trap excited electrons, thus prolonging the life of the charge carriers. N-containing functional groups are suitable for this purpose due to their high electron density.
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- Researchers used a co-precipitation method to integrate the sunscreen ingredient sulisobenzone into the structure of a hybrid material known as CaFe-hydrocalumite for the first time.
- They employed various techniques like X-ray diffraction and spectroscopy to analyze the effects of mechanical milling on the material's properties, revealing noticeable changes in structure, surface characteristics, and thermal behavior.
- Notably, milling enhanced the UV light blocking ability of the material, particularly around 320 nm, due to changes in the interactions between the sulfobenzone anions and the layers of the hydrocalumite structure.
Liquid phase direct amination of phenols to primary anilines with hydrazine was achieved using commercial NiLa-perovskite catalysts as bifunctional Lewis acid/redox-active catalysts without adding any external hydride sources. The amination strategy took place efficiently in the absence of any amount of reducing gasses (H/NH) and noble metals under mild conditions.
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