Two bentonites from Paraíba (Northeastern Brazil) were impregnated with heteropoly phosphomolybdic HPMoO (HPMo). The materials produced were characterized by various techniques such as N 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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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539966 | PMC |
| http://dx.doi.org/10.3390/ma12091431 | DOI Listing |
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