Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/11402
Título: Development of glycerol-based metal-free carbon materials for environmental catalytic applications
Autor: Ribeiro, Rui
Silva, Adrián
Pinho, Maria
Figueiredo, José
Faria, Joaquim
Gomes, Helder
Palavras-chave: Carbon material
Glycerol
Catalytic wet peroxide oxidation (CWPO)
Metal-free catalyst
2-Nitrophenol
Data: 2015
Editora: Elsevier
Citação: Ribeiro, Rui; Silva, Adrián; Pinho, Maria; Figueiredo, José; Faria, Joaquim; Gomes, Helder (2015) - Development of glycerol-based metal-free carbon materials for environmental catalytic applications. Catalysis Today. Elsevier. 240, p. 61-66
Resumo: A thermally stable and non-porous carbon material (SBET= 10 m2g−1and no micropores), with low ashcontent and basic character, was produced by partial carbonization of glycerol with sulphuric acid fol-lowed by calcination under inert atmosphere. Further thermal activation in air atmosphere at differenttemperatures (from 150 to 350◦C) leads to materials with less basic character and to a tremendous evolu-tion of the porosity, mostly microporosity (SBET= 598 m2g−1and VMic= 0.24 cm3g−1). Experiments showthat metal-free carbon materials synthesized by this approach can be highly active catalysts for the cat-alytic wet peroxide oxidation (CWPO) process when the surface chemistry and textural properties areadequately tuned. Effective catalytic degradation of 2-nitrophenol (80% conversion) was achieved withthe material treated under air atmosphere at 300◦C, even when operating under a high pollutant/catalystmass ratio, opening a window of opportunity for added-value crude glycerol-derived products. Further-more, catalyst activity was effectively recovered by a simple oxidative thermal regeneration procedure.
Peer review: yes
URI: http://hdl.handle.net/10198/11402
DOI: 10.1016/j.cattod.2014.03.048
Aparece nas colecções:DTQB - Artigos em Revistas Indexados ao ISI/Scopus

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