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Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples

Cyanazine (CYZ), Ametryn (AME) and Atrazine (ATZ) are mostly utilized 1, 3, 5-triazine herbicides to control the growth of broadleaf grasses and weeds, however, their extensive usage has adverse effects on the environment, non-target organisms, and human health. Therefore, molecularly imprinted poly...

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Main Author: Rachel Marcella, Roland
Format: Thesis
Language:English
English
English
Published: UNIMAS Institutional Repository 2024
Subjects:
QD Chemistry
S Agriculture (General)
TP Chemical technology
Online Access:http://ir.unimas.my/id/eprint/44337/3/Thesis%20PhD_%20RACHEL%20MARCELLA%20-%2024%20pages.pdf
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spelling my.unimas.ir.443372024-04-30T06:16:59Z http://ir.unimas.my/id/eprint/44337/ Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples Rachel Marcella, Roland QD Chemistry S Agriculture (General) TP Chemical technology Cyanazine (CYZ), Ametryn (AME) and Atrazine (ATZ) are mostly utilized 1, 3, 5-triazine herbicides to control the growth of broadleaf grasses and weeds, however, their extensive usage has adverse effects on the environment, non-target organisms, and human health. Therefore, molecularly imprinted polymers (MIPs) were applied to remove triazine herbicides in the environment. In this study, MIPs of triazine herbicides were synthesized by precipitation polymerization in the presence of template molecules (CYZ, AME and ATZ), functional monomers (methacrylic acid, acrylamide, 2-vinylpyirdine, and 4-vinylpyridine), cross-linker (ethylene glycol dimethacrylate), initiator (azo-bis-isobutyronitrile), and solvent (toluene and acetonitrile). For comparison study, the non-imprinted polymers (NIPs) were synthesized without the addition of template molecule. The Fourier Transform Infra-Red (FTIR) analysis of MIPs of triazine herbicides indicated the presence of CYZ, AME and ATZ were observed at ~756 cm–1, ~1450 cm–1, and ~1389 cm–1, respectively. MIP (AAm) of CYZ had its maximum adsorption efficiency in 6 ppm CYZ solution at pH 7, 0.1 g of polymer and 240 mins of contact time. MIP (MAA) of AME had its highest adsorption efficiency in 7 ppm AME solution at pH 7, 0.1 g of polymer and 210 mins of contact time. MIP (2VP) of ATZ exhibited its maximum adsorption efficiency in 8 ppm of ATZ solution at pH 7, 0.3 g of polymer and 15 mins of contact time. The thermogravimetric analysis (TGA) of MIPs of triazine herbicides depicted that the decomposition of polymers was between ~320 °C to ~500 °C. MIP (AAm) of CYZ, MIP (MAA) of AME and MIP (2VP) of ATZ were more selective towards their target compounds with relative selectivity coefficients of 2.36, 2.66 and 2.77, respectively. The synthesized MIP (AAm) of CYZ, MIP (MAA) of AME and MIP (2VP) of ATZ were successfully applied to remove CYZ, AME and ATZ from different water samples (distilled water, tap water and river water) with removal efficiencies between ~84% to ~95%. UNIMAS Institutional Repository 2024-02-06 Thesis NonPeerReviewed text en http://ir.unimas.my/id/eprint/44337/3/Thesis%20PhD_%20RACHEL%20MARCELLA%20-%2024%20pages.pdf text en http://ir.unimas.my/id/eprint/44337/9/Thesis%20PhD_%20RACHEL%20MARCELLA.dsva.pdf text en http://ir.unimas.my/id/eprint/44337/10/Thesis%20PhD_%20RACHEL%20MARCELLA.ftext.pdf Rachel Marcella, Roland (2024) Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples. PhD thesis, Universiti Malaysia Sarawak (UNIMAS).
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
English
English
topic QD Chemistry
S Agriculture (General)
TP Chemical technology
spellingShingle QD Chemistry
S Agriculture (General)
TP Chemical technology
Rachel Marcella, Roland
Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples
description Cyanazine (CYZ), Ametryn (AME) and Atrazine (ATZ) are mostly utilized 1, 3, 5-triazine herbicides to control the growth of broadleaf grasses and weeds, however, their extensive usage has adverse effects on the environment, non-target organisms, and human health. Therefore, molecularly imprinted polymers (MIPs) were applied to remove triazine herbicides in the environment. In this study, MIPs of triazine herbicides were synthesized by precipitation polymerization in the presence of template molecules (CYZ, AME and ATZ), functional monomers (methacrylic acid, acrylamide, 2-vinylpyirdine, and 4-vinylpyridine), cross-linker (ethylene glycol dimethacrylate), initiator (azo-bis-isobutyronitrile), and solvent (toluene and acetonitrile). For comparison study, the non-imprinted polymers (NIPs) were synthesized without the addition of template molecule. The Fourier Transform Infra-Red (FTIR) analysis of MIPs of triazine herbicides indicated the presence of CYZ, AME and ATZ were observed at ~756 cm–1, ~1450 cm–1, and ~1389 cm–1, respectively. MIP (AAm) of CYZ had its maximum adsorption efficiency in 6 ppm CYZ solution at pH 7, 0.1 g of polymer and 240 mins of contact time. MIP (MAA) of AME had its highest adsorption efficiency in 7 ppm AME solution at pH 7, 0.1 g of polymer and 210 mins of contact time. MIP (2VP) of ATZ exhibited its maximum adsorption efficiency in 8 ppm of ATZ solution at pH 7, 0.3 g of polymer and 15 mins of contact time. The thermogravimetric analysis (TGA) of MIPs of triazine herbicides depicted that the decomposition of polymers was between ~320 °C to ~500 °C. MIP (AAm) of CYZ, MIP (MAA) of AME and MIP (2VP) of ATZ were more selective towards their target compounds with relative selectivity coefficients of 2.36, 2.66 and 2.77, respectively. The synthesized MIP (AAm) of CYZ, MIP (MAA) of AME and MIP (2VP) of ATZ were successfully applied to remove CYZ, AME and ATZ from different water samples (distilled water, tap water and river water) with removal efficiencies between ~84% to ~95%.
format Thesis
author Rachel Marcella, Roland
author_facet Rachel Marcella, Roland
author_sort Rachel Marcella, Roland
title Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples
title_short Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples
title_full Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples
title_fullStr Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples
title_full_unstemmed Synthesis and Characterization of Molecularly Imprinted Polymer for the Removal of Triazine Herbicides in Water Samples
title_sort synthesis and characterization of molecularly imprinted polymer for the removal of triazine herbicides in water samples
publisher UNIMAS Institutional Repository
publishDate 2024
url http://ir.unimas.my/id/eprint/44337/3/Thesis%20PhD_%20RACHEL%20MARCELLA%20-%2024%20pages.pdf
http://ir.unimas.my/id/eprint/44337/9/Thesis%20PhD_%20RACHEL%20MARCELLA.dsva.pdf
http://ir.unimas.my/id/eprint/44337/10/Thesis%20PhD_%20RACHEL%20MARCELLA.ftext.pdf
http://ir.unimas.my/id/eprint/44337/
_version_ 1800728050939199488
score 13.211869

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