TY - JOUR
T1 - Synthesis and catalytic activity of magnesium hydroxide fluorides for production of biodiesel
T2 - Influence of different Mg/F ratios
AU - Indrayanah, S.
AU - Ediati, R.
AU - Hartanto, D.
AU - Marsih, I. N.
AU - Murwani, I. K.
N1 - Publisher Copyright:
© 2018 Chemical Publishing Co. All rights reserved.
PY - 2018
Y1 - 2018
N2 - The magnesium hydroxide fluorides having formula MgFx(OH)2-x with diverse Mg/F ratios were prepared by fluorolytic sol-gel method. The XRD, FT-IR, SEM, nitrogen adsorption-desorption, TG/DTG and pyridine FT-IR were performed to study properties and characteristics of samples. Based on the characterization results, the samples show dissimilar structure, thermal stability, porosity, surface acidity and morphology. In addition, the average pore diameter and total pore volume of the MgFx(OH)2-x decrease with increase in fluorine contents. The activity of solids as heterogeneous catalyst for production of biodiesel from used frying oil exhibits that MgFx(OH)2-x with Mg/F ratio of 1:2 gives higher yield of biodiesel (75.29 %) compared to MgFx(OH)2-x (x < 2). The higher activity of MgFx(OH)2-x (x = 2) catalyst for biodiesel production can be attributed to acid sites (Lewis and Brønsted), average pore diameter and total pore volume. Moreover, performance of catalyst decreases after three cycles.
AB - The magnesium hydroxide fluorides having formula MgFx(OH)2-x with diverse Mg/F ratios were prepared by fluorolytic sol-gel method. The XRD, FT-IR, SEM, nitrogen adsorption-desorption, TG/DTG and pyridine FT-IR were performed to study properties and characteristics of samples. Based on the characterization results, the samples show dissimilar structure, thermal stability, porosity, surface acidity and morphology. In addition, the average pore diameter and total pore volume of the MgFx(OH)2-x decrease with increase in fluorine contents. The activity of solids as heterogeneous catalyst for production of biodiesel from used frying oil exhibits that MgFx(OH)2-x with Mg/F ratio of 1:2 gives higher yield of biodiesel (75.29 %) compared to MgFx(OH)2-x (x < 2). The higher activity of MgFx(OH)2-x (x = 2) catalyst for biodiesel production can be attributed to acid sites (Lewis and Brønsted), average pore diameter and total pore volume. Moreover, performance of catalyst decreases after three cycles.
KW - Biodiesel
KW - Heterogeneous catalyst
KW - Magnesium hydroxide fluorides
KW - Sol gel method
KW - Used frying oil
UR - http://www.scopus.com/inward/record.url?scp=85047421992&partnerID=8YFLogxK
U2 - 10.14233/ajchem.2018.21035
DO - 10.14233/ajchem.2018.21035
M3 - Article
AN - SCOPUS:85047421992
SN - 0970-7077
VL - 30
SP - 1190
EP - 1194
JO - Asian Journal of Chemistry
JF - Asian Journal of Chemistry
IS - 6
ER -