Recycling and characterization of spent catalyst: Carmoisine dye removal from water and carbon monoxide conversion to carbon dioxide in air

Ali I., Kon'kova T., Liberman E., Gaydukova A., Agustiono Kurniawan T., Aldossari S. A., ...daha çox

Inorganic Chemistry Communications, vol.167, 2024 (SCI-Expanded, Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 167
  • Nəşr tarixi: 2024
  • Doi nömrəsi: 10.1016/j.inoche.2024.112747
  • jurnalın adı: Inorganic Chemistry Communications
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Açar sözlər: Carbon monoxide to carbon dioxide, Characterization, Mechanism, Recycling and characterization of spent catalyst, Removal of carmoisine dye from water
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

This study describes the recycling of the spent Co-Mo-Al2O3 catalysts in hydro-treating diesel fuel and subsequent application in purifying wastewater and air from harmful contaminants. A sodium carbonate solution was used for the selective extraction of molybdenum with an extraction efficiency of at least 90 %. As a result, Mo-Al2O3 material was obtained. The material was characterized by EDX and low-temperature nitrogen adsorption. The materials showed high activity and stability as a Fenton-type catalyst in the oxidative degradation of the carmoisine azo dye in aqueous solution with 98 % removal in 30 min having 8.0 g/L catalyst at pH 2.0 and 60 °C temp. The carbon monoxide conversion to carbon dioxide was 100 % at 475 °C. The present work is very useful for the purification of water by removing carmoisine dye and air by converting carbon monoxide to carbon dioxide.