Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR)

This research aimed to prepare and study the controlled release of agrochemical herbicide based on new nanocomposites, namely zinc layered hydroxide-3-(4- methoxyphenyl)propionate (ZLH-MPP) and layered double hydroxide-3-(4- methoxyphenyl)propionate (LDH-MPP). This research is divided into three par...

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Main Author:	Zuhailimuna Muda
Format:	thesis
Language:	eng
Published:	2015
Subjects:	QD Chemistry
Online Access:	https://ir.upsi.edu.my/detailsg.php?det=1666
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spelling	oai:ir.upsi.edu.my:16662020-02-27 Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR) 2015 Zuhailimuna Muda QD Chemistry This research aimed to prepare and study the controlled release of agrochemical herbicide based on new nanocomposites, namely zinc layered hydroxide-3-(4- methoxyphenyl)propionate (ZLH-MPP) and layered double hydroxide-3-(4- methoxyphenyl)propionate (LDH-MPP). This research is divided into three parts which are synthesis of nanocomposites, characterization and controlled release. ZLHMPP nanocomposite was synthesized using direct reaction of an aqueous suspension of zinc oxide with MPP solution. Whereas, LDH-MPP nanocomposite was synthesized using an ion exchange method between nitrate ion and MPP anion. The physiochemical properties of ZLH-MPP and LDH-MPP nanocomposites were characterized using powder x-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), carbon, hydrogen, nitrogen, oxygen and sulphur analysis (CHNO-S), inductive coupled plasma optical emission spectrometry (ICP-OES), thermogravimetric analysis and derivative thermogravimetry (TGA/DTG), and field emission scanning electron microscope (FESEM). Based on the results, PXRD patterns of ZLH-MPP and LDH-MPP nanocomposites showed the expansion of interlayer of layered material with the values of 27.3 and in the range of 18.7 to 20.5 respectively. FTIR spectra for both nanocomposites revealed the presence of MPP in the interlayer of ZLH-MPP and LDH-MPP nanocomposites. The controlled release of MPP from ZLH-MPP and LDH-MPP nanocomposite was found that phosphate solution yielded the highest percentage release compared to sulphate and chloride solutions. The kinetics data for MPP herbicide release from ZLH interlayer were best fitted to the pseudo-second order for phosphate solution and first order for both sulphate and chloride solutions. While, LDH-MPP nanocomposite governed by pseudo second order for all three solutions. The conclusions of this study are, ZLHMPP and LDH-MPP nanocomposites were successfully synthesized and the intercalation was confirmed by characterization data. Besides that, the release behavior of herbicide was also according to one of the models that have been proposed. Implication of this research is to boost the agrochemical activity leading to safer herbicide for environment. 2015 thesis https://ir.upsi.edu.my/detailsg.php?det=1666 https://ir.upsi.edu.my/detailsg.php?det=1666 text eng closedAccess Masters Universiti Pendidikan Sultan Idris Fakulti Sains dan Matematik N/A
institution	Universiti Pendidikan Sultan Idris
collection	UPSI Digital Repository
language	eng
topic	QD Chemistry
spellingShingle	QD Chemistry Zuhailimuna Muda Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR)
description	This research aimed to prepare and study the controlled release of agrochemical herbicide based on new nanocomposites, namely zinc layered hydroxide-3-(4- methoxyphenyl)propionate (ZLH-MPP) and layered double hydroxide-3-(4- methoxyphenyl)propionate (LDH-MPP). This research is divided into three parts which are synthesis of nanocomposites, characterization and controlled release. ZLHMPP nanocomposite was synthesized using direct reaction of an aqueous suspension of zinc oxide with MPP solution. Whereas, LDH-MPP nanocomposite was synthesized using an ion exchange method between nitrate ion and MPP anion. The physiochemical properties of ZLH-MPP and LDH-MPP nanocomposites were characterized using powder x-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), carbon, hydrogen, nitrogen, oxygen and sulphur analysis (CHNO-S), inductive coupled plasma optical emission spectrometry (ICP-OES), thermogravimetric analysis and derivative thermogravimetry (TGA/DTG), and field emission scanning electron microscope (FESEM). Based on the results, PXRD patterns of ZLH-MPP and LDH-MPP nanocomposites showed the expansion of interlayer of layered material with the values of 27.3 and in the range of 18.7 to 20.5 respectively. FTIR spectra for both nanocomposites revealed the presence of MPP in the interlayer of ZLH-MPP and LDH-MPP nanocomposites. The controlled release of MPP from ZLH-MPP and LDH-MPP nanocomposite was found that phosphate solution yielded the highest percentage release compared to sulphate and chloride solutions. The kinetics data for MPP herbicide release from ZLH interlayer were best fitted to the pseudo-second order for phosphate solution and first order for both sulphate and chloride solutions. While, LDH-MPP nanocomposite governed by pseudo second order for all three solutions. The conclusions of this study are, ZLHMPP and LDH-MPP nanocomposites were successfully synthesized and the intercalation was confirmed by characterization data. Besides that, the release behavior of herbicide was also according to one of the models that have been proposed. Implication of this research is to boost the agrochemical activity leading to safer herbicide for environment.
format	thesis
qualification_name
qualification_level	Master's degree
author	Zuhailimuna Muda
author_facet	Zuhailimuna Muda
author_sort	Zuhailimuna Muda
title	Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR)
title_short	Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR)
title_full	Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR)
title_fullStr	Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR)
title_full_unstemmed	Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR)
title_sort	preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (ir)
granting_institution	Universiti Pendidikan Sultan Idris
granting_department	Fakulti Sains dan Matematik
publishDate	2015
url	https://ir.upsi.edu.my/detailsg.php?det=1666
_version_	1747832986811760640

Preparation and controlled release of agrochemical herbicide zinc layered hydroxide-3-(4- methoxyphenyl)propionate and layered double hydroxide-3-(4-methoxyphenyl)propionate nanocomposites (IR)

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