Molecularly imprinted polymers for selective adsorption of quinoline: theoretical and experimental studies

L.N. Martínez Saavedra; R.G. Penido; L. De Azevedo Santos; T.C. Ramalho; B.E. Lobo Baeta; M.C. Pereira; A. Candido Da Silva

doi:10.1039/c8ra04261f

Molecularly imprinted polymers for selective adsorption of quinoline: theoretical and experimental studies

L.N. Martínez Saavedra, R.G. Penido, L. De Azevedo Santos, T.C. Ramalho, B.E. Lobo Baeta, M.C. Pereira, A. Candido Da Silva

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

© The Royal Society of Chemistry.The effects of solvent on the synthesis of molecularly imprinted polymers (MIPs) for the selective adsorption of quinoline were evaluated in this work. The MIPs were synthesized by the “bulk” method using the quinoline molecule (IQ) as a template in different solvents, such as toluene (MIPT) and chloroform (MIPC). The adsorbents were characterized by thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and N2 adsorption/desorption measurements. The influences of time, adsorbate concentration, and temperature on the adsorption of quinoline by MIPT and MIPC were evaluated. Maximum adsorption capacities (qe) of 35.23 and 24.10 mg g-1 were obtained for MIPT and MIPC, respectively. Thermodynamic studies indicate that occur physisorption and a spontaneous process (ΔadsG° < 0) entropically directed. Finally, the highest selectivity and reusability of MIPC for quinoline adsorption was ascribed to the better interaction between the chloroform and monomer, which favors the formation of porous adsorbents with higher numbers of adsorption sites.

Original language	English
Pages (from-to)	28775-28786
Journal	RSC Advances
Volume	8
Issue number	50
DOIs	https://doi.org/10.1039/c8ra04261f
Publication status	Published - 2018
Externally published	Yes

Funding

The authors would like to thank the Universidade Federal de Ouro Ouro (UFOP), Universidade Federal de Lavras (UFLA), FAPEMIG (APQ-00847-14; APQ-00369-14), CAPES, and CNPq (443426/2014-7) for their nancial support.

Funders	Funder number
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Conselho Nacional de Desenvolvimento Científico e Tecnológico	443426/2014-7
Fundação de Amparo à Pesquisa do Estado de Minas Gerais	APQ-00369-14, APQ-00847-14
Universidade Federal de Ouro Preto
Universidade Federal de Lavras

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@article{36dc499eb82c4af4bc21b4b2bc37361e,

title = "Molecularly imprinted polymers for selective adsorption of quinoline: theoretical and experimental studies",

abstract = "{\textcopyright} The Royal Society of Chemistry.The effects of solvent on the synthesis of molecularly imprinted polymers (MIPs) for the selective adsorption of quinoline were evaluated in this work. The MIPs were synthesized by the “bulk” method using the quinoline molecule (IQ) as a template in different solvents, such as toluene (MIPT) and chloroform (MIPC). The adsorbents were characterized by thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and N2 adsorption/desorption measurements. The influences of time, adsorbate concentration, and temperature on the adsorption of quinoline by MIPT and MIPC were evaluated. Maximum adsorption capacities (qe) of 35.23 and 24.10 mg g-1 were obtained for MIPT and MIPC, respectively. Thermodynamic studies indicate that occur physisorption and a spontaneous process (ΔadsG° < 0) entropically directed. Finally, the highest selectivity and reusability of MIPC for quinoline adsorption was ascribed to the better interaction between the chloroform and monomer, which favors the formation of porous adsorbents with higher numbers of adsorption sites.",

author = "{Mart{\'i}nez Saavedra}, L.N. and R.G. Penido and {De Azevedo Santos}, L. and T.C. Ramalho and {Lobo Baeta}, B.E. and M.C. Pereira and {Candido Da Silva}, A.",

year = "2018",

doi = "10.1039/c8ra04261f",

language = "English",

volume = "8",

pages = "28775--28786",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Molecularly imprinted polymers for selective adsorption of quinoline

T2 - theoretical and experimental studies

AU - Martínez Saavedra, L.N.

AU - Penido, R.G.

AU - De Azevedo Santos, L.

AU - Ramalho, T.C.

AU - Lobo Baeta, B.E.

AU - Pereira, M.C.

AU - Candido Da Silva, A.

PY - 2018

Y1 - 2018

N2 - © The Royal Society of Chemistry.The effects of solvent on the synthesis of molecularly imprinted polymers (MIPs) for the selective adsorption of quinoline were evaluated in this work. The MIPs were synthesized by the “bulk” method using the quinoline molecule (IQ) as a template in different solvents, such as toluene (MIPT) and chloroform (MIPC). The adsorbents were characterized by thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and N2 adsorption/desorption measurements. The influences of time, adsorbate concentration, and temperature on the adsorption of quinoline by MIPT and MIPC were evaluated. Maximum adsorption capacities (qe) of 35.23 and 24.10 mg g-1 were obtained for MIPT and MIPC, respectively. Thermodynamic studies indicate that occur physisorption and a spontaneous process (ΔadsG° < 0) entropically directed. Finally, the highest selectivity and reusability of MIPC for quinoline adsorption was ascribed to the better interaction between the chloroform and monomer, which favors the formation of porous adsorbents with higher numbers of adsorption sites.

AB - © The Royal Society of Chemistry.The effects of solvent on the synthesis of molecularly imprinted polymers (MIPs) for the selective adsorption of quinoline were evaluated in this work. The MIPs were synthesized by the “bulk” method using the quinoline molecule (IQ) as a template in different solvents, such as toluene (MIPT) and chloroform (MIPC). The adsorbents were characterized by thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and N2 adsorption/desorption measurements. The influences of time, adsorbate concentration, and temperature on the adsorption of quinoline by MIPT and MIPC were evaluated. Maximum adsorption capacities (qe) of 35.23 and 24.10 mg g-1 were obtained for MIPT and MIPC, respectively. Thermodynamic studies indicate that occur physisorption and a spontaneous process (ΔadsG° < 0) entropically directed. Finally, the highest selectivity and reusability of MIPC for quinoline adsorption was ascribed to the better interaction between the chloroform and monomer, which favors the formation of porous adsorbents with higher numbers of adsorption sites.

U2 - 10.1039/c8ra04261f

DO - 10.1039/c8ra04261f

M3 - Article

SN - 2046-2069

VL - 8

SP - 28775

EP - 28786

JO - RSC Advances

JF - RSC Advances

IS - 50

ER -

Molecularly imprinted polymers for selective adsorption of quinoline: theoretical and experimental studies

Abstract

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