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), 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. © 2019 by the authors.

Authors
De Oliveira A.N. , De Lima M.A.B. , Pires L.H.O.1 , Da Silva M.R. , Da Luz P.T.S. , Angélica R.S.5 , Filho G.N.R.1, 2 , Da Costa C.E.F. , Luque R. 6, 7 , Do Nascimento L.A.S.
Journal
Materials
Publisher
MDPI AG
Number of issue
9
Language
English
Status
Published
Link
External link
DOI
10.3390/ma12091431
Number
1431
Volume
12
Year
2019
Organizations
  • 1 Laboratory of Catalysis and Oilchemistry, Federal University of Pará, Augusto Corrêa Street, Guamá, Belém, PA 66075-110, Brazil
  • 2 Laboratory of Oils of the Amazon, Federal University of Pará, Perimetral Avenue, Guamá, Belém, PA 66075-750, Brazil
  • 3 Department of Exact and Technologic Sciences, Federal Ubiversity of Amapá, Rod. Juscelino Kubitschek, km 02-Jardim Marco Zero, Macapá, AP 68903-419, Brazil
  • 4 Federal Institute of Education, Science and Technology of Pará, Campus Belém, Avenue Almirante Barroso, Marco, Belém, PA 66093-020, Brazil
  • 5 Laboratory of X-Ray Diffraction, Federal University of Pará, Augusto Corrêa Street, Guamá, Belém, PA 66075-110, Brazil
  • 6 Department of Organic Chemistry, Universidad de Córdoba, Ctra Nnal IV-A, Km 396, Cordoba, E14014, Spain
  • 7 Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya str., Moscow, 117198, Russian Federation
Keywords
Bentonite; Clays; Esterification; Heterogeneous catalysis; Heteropolyacids
Date of creation
19.07.2019
Date of change
19.07.2019
Short link
https://repository.rudn.ru/en/records/article/record/38928/
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