Bentonites Modified with Phosphomolybdic Heteropolyacid (HPMo) for Biowaste to Biofuel Production

Two bentonites from Paraíba (Northeastern Brazil) were impregnated with heteropoly phosphomolybdic H(3)PMo(12)O(40) (HPMo). The materials produced were characterized by various techniques such as N(2) adsorption-desorption (specific surface area, SSA), Fourier transform infrared spectroscopy (FTIR),...

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Detalles Bibliográficos
Autores principales: de Oliveira, Alex de Nazaré, Barbosa de Lima, Marco Aurélio, de Oliveira Pires, Luíza Helena, Rosas da Silva, Moisés, Souza da Luz, Patrícia Teresa, Angélica, Rômulo S., da Rocha Filho, Geraldo N., F. da Costa, Carlos Emmerson, Luque, Rafael, Santos do Nascimento, Luís Adriano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539966/
https://www.ncbi.nlm.nih.gov/pubmed/31052534
http://dx.doi.org/10.3390/ma12091431
Descripción
Sumario:Two bentonites from Paraíba (Northeastern Brazil) were impregnated with heteropoly phosphomolybdic H(3)PMo(12)O(40) (HPMo). The materials produced were characterized by various techniques such as N(2) adsorption-desorption (specific surface area, SSA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Thermogravimetric analysis (TGA/DTG), Scanning Electron Microscopy (SEM) equipped with Dispersive Energy X-ray spectroscopy (EDS), ultraviolet-visible spectroscopy (UV-vis), acid-base titration analysis. The catalytic activity of these materials was tested in the esterification of a waste from palm oil deodorization and the main results obtained (about 93.3% of conversion) indicated that these materials have potential to act as heterogeneous solid acid catalysts. The prepared materials exhibited satisfactory catalytic performance even after a very simple recycling process in three reuse cycles, without significant loss of their activities.

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