Understanding kinetics and thermodynamics of the interactions between amitriptyline or eosin yellow and aminosilane-modified cellulose

Francisco J L Ferreira; Lucinaldo S Silva; Mateus S da Silva; Josy A Osajima; Andréia B Meneguin; Silvia H Santagneli; Hernane S Barud; Roosevelt D S Bezerra; Edson C Silva-Filho

doi:10.1016/j.carbpol.2019.115246

Understanding kinetics and thermodynamics of the interactions between amitriptyline or eosin yellow and aminosilane-modified cellulose

Carbohydr Polym. 2019 Dec 1:225:115246. doi: 10.1016/j.carbpol.2019.115246. Epub 2019 Aug 25.

Authors

Francisco J L Ferreira¹, Lucinaldo S Silva², Mateus S da Silva¹, Josy A Osajima¹, Andréia B Meneguin³, Silvia H Santagneli⁴, Hernane S Barud⁵, Roosevelt D S Bezerra⁶, Edson C Silva-Filho⁷

Affiliations

¹ Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64049-550 Teresina, PI, Brazil.
² Federal Institute of Education, Açailândia Campus, IFMA, 65930-000, Maranhão, MA, Brazil.
³ Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64049-550 Teresina, PI, Brazil; Laboratory of Polymers and Biomaterials-BioPolMat, UNIARA, 14801-340, Araraquara, SP, Brazil.
⁴ Institute of Chemistry, São Paulo State University, Araraquara, SP, 14801-970, Brazil.
⁵ Laboratory of Polymers and Biomaterials-BioPolMat, UNIARA, 14801-340, Araraquara, SP, Brazil.
⁶ Federal Institute of Piauí, Teresina-Central Campus, IFPI, 64000-040, Teresina, PI, Brazil.
⁷ Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64049-550 Teresina, PI, Brazil. Electronic address: edsonfilho@ufpi.edu.br.

PMID: 31521310
DOI: 10.1016/j.carbpol.2019.115246

Abstract

A new adsorbent matrix (Cel-SiN) for the adsorption of the dye eosin yellow (EY) and the drug amitriptyline (AMI) from aqueous media has been synthesized. The Cel-SiN matrix was obtained via chemical modification of cellulose with (3-aminopropyl)trimethoxysilane. Successful modification was confirmed using Fourier transform infrared (FTIR) and ¹³C and ²⁹Si solid state nuclear magnetic resonance (SSNMR) spectroscopies, thermal analysis (TG/DTG), X-ray diffraction (XRD), and elemental analysis. The effects of pH, contact time, concentration, and temperature were evaluated in batch adsorption tests. Cel-SiN efficiently adsorbed AMI and EY in aqueous media, with maximum adsorption capacities of 92.28 ± 1.34 mg g^-1 for AMI (pH = 7, time =240 min, and temperature = 318 K) and 61.0 ± 0.36 mg g^-1 for EY (pH = 5, time =80 min, and temperature = 298 K). The adsorption process occurs mainly via hydrogen bonding interactions for AMI and electrostatic interactions for EY.

Keywords: Adsorption; Aminosilane; Amitriptyline; Cellulose; Eosin yellow; Modification.