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Article

Simultaneous Adsorption of 4,6-Dimethyldibenzothiophene and Quinoline over Nickel and Boron Modified Gamma-Al2O3 Adsorbent

1
Instituto de Química, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, Chile
2
Escuela de Nutrición, Facultad de Farmacia, Universidad de Valparaíso, Casilla 4059, Valparaíso, Chile
3
Departamento de Ciencias de la Ingeniería, Facultad de Ingeniería, Universidad Andres Bello, Antonio Varas 880, Santiago, Chile
*
Authors to whom correspondence should be addressed.
Processes 2020, 8(4), 419; https://doi.org/10.3390/pr8040419
Received: 27 February 2020 / Revised: 22 March 2020 / Accepted: 27 March 2020 / Published: 2 April 2020
(This article belongs to the Special Issue Advances in Nanomaterials for Selective Adsorption)
The simultaneous adsorption of quinoline and 4,6-dimethyldibenzothiophene over adsorbents, based on alumina modified with boron and nickel under ambient temperature and pressure, was studied. The adsorbents were characterized by BET specific surface area, a potentiometric method for the determination of acid strength, electrophoretic migration, and X-ray diffraction. The results showed that the adsorbent containing nickel had better adsorption capacity than the adsorbent modified with nickel and boron, which was attributed to its greater acidity and ability to generate π-complexation between the adsorbent and the molecules. In terms of selectivity, quinoline was more adsorbed than 4,6-dimethyldibenzothiophene in all systems, due to the basic nature of quinoline. The experimental data in all cases were adjusted by three kinetic models (Yoon–Nelson, Yan and Thomas), and the regression coefficients in all models were close to one. Finally, the values of the kinetic constant obtained by the Thomas model were used to relate the adsorption capacity results. View Full-Text
Keywords: adsorption; 4,6-dimethyldibenzothiophene; quinoline; alumina; boron; nickel adsorption; 4,6-dimethyldibenzothiophene; quinoline; alumina; boron; nickel
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MDPI and ACS Style

Camu, E.; Pasten, B.; Matus, C.; Ramirez, F.; Ojeda, J.; Aguila, G.; Baeza, P. Simultaneous Adsorption of 4,6-Dimethyldibenzothiophene and Quinoline over Nickel and Boron Modified Gamma-Al2O3 Adsorbent. Processes 2020, 8, 419. https://doi.org/10.3390/pr8040419

AMA Style

Camu E, Pasten B, Matus C, Ramirez F, Ojeda J, Aguila G, Baeza P. Simultaneous Adsorption of 4,6-Dimethyldibenzothiophene and Quinoline over Nickel and Boron Modified Gamma-Al2O3 Adsorbent. Processes. 2020; 8(4):419. https://doi.org/10.3390/pr8040419

Chicago/Turabian Style

Camu, Esteban, Barbara Pasten, Camila Matus, Fernanda Ramirez, Juan Ojeda, Gonzalo Aguila, and Patricio Baeza. 2020. "Simultaneous Adsorption of 4,6-Dimethyldibenzothiophene and Quinoline over Nickel and Boron Modified Gamma-Al2O3 Adsorbent" Processes 8, no. 4: 419. https://doi.org/10.3390/pr8040419

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