Ozone Decomposition over Cobalt Supported on Olive Stones Activated Carbon: Effect of Preparation Method on Catalyst Activity

Autor:	Asma Abdedayem, Francisco Javier Rivas Toledo, Abdelmottaleb Ouederni, Monia Guiza
Rok vydání:	2017
Předmět:	Environmental Engineering Ozone Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Nitrogen Decomposition 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy medicine Environmental Chemistry 0210 nano-technology Cobalt Incipient wetness impregnation Activated carbon medicine.drug
Zdroj:	Ozone: Science & Engineering. 39:435-446
ISSN:	1547-6545 0191-9512
DOI:	10.1080/01919512.2017.1331729
Popis:	Aqueous ozone decomposition was studied over highly dispersed cobalt nanoparticles supported on olive stones activated carbon (AC) prepared by: wetness impregnation (Co/ACw) and incipient wetness impregnation (Co/ACiw) with respect to pore volume. Nitrogen adsorption-desorption at 77K, SEM, XRD and XPS analyses were used to characterize the catalysts. Analyses results show that Co/ACw was more uniformly dispersed on the AC than Co/ACiw. The effect of the presence of tert-butanol as radical scavenger was also studied. Higher catalytic activity was measured for Co/ACw than Co/ACiw. Ozone decomposition extent goes to 99% in only 3 min in the presence of Co/ACw compared to 60% and 58% using Co/ACiw catalyst and AC, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d0746742beed265ca64189912ab7c575 https://doi.org/10.1080/01919512.2017.1331729 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.