TY - JOUR
T1 - Determination of Brønsted Acid Sites in Porous Aluminosilicate Solid Catalysts Using Volumetric and Potentiometric Titration Method
AU - Purwaningsih, A.
AU - Kristanti, A. N.
AU - Mardho, D. Z.
AU - Saraswati, D. W.
AU - Putri, N. M.
AU - Saputri, N. H.
AU - Hartati, H.
N1 - Publisher Copyright:
© 2019 Published under licence by IOP Publishing Ltd.
PY - 2019/1/9
Y1 - 2019/1/9
N2 - The Brønsted acid site was determined by using volumetric and Potentiometrie titration method. The result showed that the Brønsted acid sites of synthesized aluminosilicate using volumetric titration method are aluminosilicate-1: 0.5491; aluminosilicate-2: 0.5523; and aluminosilicate-3: 0.5772 mmol/g and using potentiometric titration method are aluminosilicate-1: 4.7087; aluminosilicate-2: 5.5739; and aluminosilicate-3: 8.1059 mmol/g. FTIR-pyridine also showed the same trend line, the Brønsted acid sites concentration increased by the increasing of Si/Al mole ratio. The results of the measurement using FTIR-pyridine showed the Brønsted acid sites concentration of aluminosilicate-1; aluminosilicate-2; and aluminosilicate-3 were 0.0293; 0.330; and 0.0336 mmol/g, respectively. The Brønsted acid sites concentration of aluminosilicate was higher using volumetric titration and potentiometric titration methods than using the FTIR-pyridine method, but the trend line was the same, the higher Si/Al mole ratio, concentration of Brønsted acid sites increased.
AB - The Brønsted acid site was determined by using volumetric and Potentiometrie titration method. The result showed that the Brønsted acid sites of synthesized aluminosilicate using volumetric titration method are aluminosilicate-1: 0.5491; aluminosilicate-2: 0.5523; and aluminosilicate-3: 0.5772 mmol/g and using potentiometric titration method are aluminosilicate-1: 4.7087; aluminosilicate-2: 5.5739; and aluminosilicate-3: 8.1059 mmol/g. FTIR-pyridine also showed the same trend line, the Brønsted acid sites concentration increased by the increasing of Si/Al mole ratio. The results of the measurement using FTIR-pyridine showed the Brønsted acid sites concentration of aluminosilicate-1; aluminosilicate-2; and aluminosilicate-3 were 0.0293; 0.330; and 0.0336 mmol/g, respectively. The Brønsted acid sites concentration of aluminosilicate was higher using volumetric titration and potentiometric titration methods than using the FTIR-pyridine method, but the trend line was the same, the higher Si/Al mole ratio, concentration of Brønsted acid sites increased.
UR - http://www.scopus.com/inward/record.url?scp=85060033233&partnerID=8YFLogxK
U2 - 10.1088/1755-1315/217/1/012002
DO - 10.1088/1755-1315/217/1/012002
M3 - Conference article
AN - SCOPUS:85060033233
SN - 1755-1307
VL - 217
JO - IOP Conference Series: Earth and Environmental Science
JF - IOP Conference Series: Earth and Environmental Science
IS - 1
M1 - 012002
T2 - 2nd International Conference on Collaboration Seminar of Chemistry and Industry, CoSCI 2018, in conjunction with 23rd Indonesian Society for Biochemistry and Molecular Biology, ISBMB 2018
Y2 - 11 October 2018 through 12 October 2018
ER -