Synthesis and Characterization of New Catalysts Grains Based on Iron(Oxy)Hydroxides supported on Zirconium for the Degradation of 4-Nitrophenol in Aqueous Solution

Autor: Hafsa Loumi, Faiza Zermane, Benamar Cheknane, Naima Bouchenafa, Omar Bouras, Adrián Bonilla-Petriciolet
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Adsorption Science & Technology, Vol 2022 (2022)
Druh dokumentu: article
ISSN: 2048-4038
DOI: 10.1155/2022/7138770
Popis: This study reports the preparation of catalyst grains based on oxyhydroxides of iron and zirconium via the coprecipitation method and their application in the degradation of 4-nitrophenol. The morphology, microstructure, and surface composition of these catalysts were characterized by scanning electron microscopy, X-ray diffraction, nitrogen physisorption, and Fourier transform infrared spectroscopy. The catalytic activity of the grains was assessed in the degradation of 4-nitrophenol in a heterogeneous system at different operating conditions. Degradation rates up to 93% were obtained after 4 h of contact time where the catalytic activity of tested materials was higher at pH 7 than in acidic and basic conditions. Amorphous iron hydroxide with a ratio of 75% Zr+25%Fe showed the best catalytic properties. These novel materials are an interesting alternative for facing the water pollution caused by organic compounds.
Databáze: Directory of Open Access Journals