2021
DOI: 10.1590/s1517-707620210004.1391
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Adsorção de monóxido de carbono em carvão ativado convencional e impregnado com 5% de nióbio

Abstract: RESUMO A poluição atmosférica e o aquecimento global são problemas que vêm se agravando ao longo das décadas devido, principalmente, as atividades antrópicas. Os processos de combustão nas indústrias e nos veículos automotores liberam na atmosfera quantidades consideráveis de poluentes gasosos e material particulado. Neste contexto, o presente trabalho buscou avaliar a eficiência do carvão ativado convencional e impregnado com 5% de nióbio na adsorção de monóxido de carbono. Os adsorventes foram caraterizados … Show more

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“…The results of the N 2 physisorption analysis for the GRP showed a specific area (S 0 ) of 1.514 m 2 g −1 , pore volume (Vp) of 0.00515 cm 3 g −1 , and mean pore diameter (dm) of 6.8 nm, demonstrating a low surface area compared to conventional adsorbents such as activated carbon [36] and zeolites [37]. The adsorption and desorption isotherms of the GRP (Figure 1) indicate that the material is mesoporous, similar to the type IV and type V isotherms [38].…”
Section: N 2 Physisorptionmentioning
confidence: 98%
“…The results of the N 2 physisorption analysis for the GRP showed a specific area (S 0 ) of 1.514 m 2 g −1 , pore volume (Vp) of 0.00515 cm 3 g −1 , and mean pore diameter (dm) of 6.8 nm, demonstrating a low surface area compared to conventional adsorbents such as activated carbon [36] and zeolites [37]. The adsorption and desorption isotherms of the GRP (Figure 1) indicate that the material is mesoporous, similar to the type IV and type V isotherms [38].…”
Section: N 2 Physisorptionmentioning
confidence: 98%