Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions

Sago starch (AGU, anhydro glucose unit) was used to prepared a poly(hydroxamic acid-amidoxime) chelating resin. Methyl acrylate (MA) and acrylonitrile (AN) were firstly graft copolymerized onto sago starch by using a free radical initiating process in which ceric ammonium nitrate was used as an init...

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Main Author:	Tan, Boon Teong
Format:	Thesis
Language:	English English
Published:	2010
Subjects:	QD241-441 Organic chemistry QD415-436 Biochemistry
Online Access:	https://eprints.ums.edu.my/id/eprint/30644/1/Synthesis%20And%20Characterisation%20Of%20Poly%28Hydroxamic%20Acid%20And%20Amidoxime%29%20Grafted%20Sago%20Starch%20Cheating%20Resin%20For%20Extraction%20Of%20Some%20Metal%20Ions%2024pages.pdf https://eprints.ums.edu.my/id/eprint/30644/2/Synthesis%20And%20Characterisation%20Of%20Poly%28Hydroxamic%20Acid%20And%20Amidoxime%29%20Grafted%20Sago%20Starch%20Cheating%20Resin%20For%20Extraction%20Of%20Some%20Metal%20Ions.pdf
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spelling	my-ums-ep.306442021-09-06T07:35:20Z Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions 2010 Tan, Boon Teong QD241-441 Organic chemistry QD415-436 Biochemistry Sago starch (AGU, anhydro glucose unit) was used to prepared a poly(hydroxamic acid-amidoxime) chelating resin. Methyl acrylate (MA) and acrylonitrile (AN) were firstly graft copolymerized onto sago starch by using a free radical initiating process in which ceric ammonium nitrate was used as an initiator. The percentage of grafting was significantly dependent upon the concentration of mineral acid (H2SO4), ceric ammonium nitrate (CAN), MA, AN, as well as the reaction temperature and period. The highest yield was obtained when the concentrations of H2SO4, CAN, AN and MA were used at 0.7090 mol/L, 4 × 10-3 mol/L, 0.6016 mol/L and 0.4392 mol/L, respectively. The optimum temperature and reaction period were 50 ºC and 90 min, respectively. The conversion of ester and nitrile groups of the poly(methyl acrylate-co-acrylonitrile) (PMA-co-AN) grafted AGU into hydroxamic acid and amidoxime functional groups was then prepared via treatment of hydroxylamine under alkaline solution. The optimum poly(hydroxamic acid-amidoxime) (PHA-PA) chelating resin was obtained when concentration of hydroxylamine hydrochloride was used at 0.8634 mol/L; reaction temperature at 75 ºC; 2 hours of reaction period; while the varying pH value was pH 13. The optimization of the PHA-PA chelating resin was evaluated by measured the sorption capacity of the resin towards copper metal ion with batch method. The PMA-co-AN grafted AGU and PHA-PA were characterized by FT-IR spectroscopy. The chelating behavior of the prepared resin towards cadmium, chromium, copper and zinc metal ions were investigated by using batch method. The binding capacities of the optimum chelating resin towards these metal ions were observed and it exhibited high sorption capacity for copper which observed at 3.576 mmol/g, at pH 6 after 24 hours of reaction period. The maximum binding capacities of the optimum chelating resin towards cadmium, chromium and zinc metal ions were observed at 1.585 mmol/g, 1.658 mmol/g and 1.817 mmol/g, respectively; at pH 6 after 24 hours of reaction period. The optimum resin obtained also showed that it was capable to form a chelate complex when reacted with metal ions in trace level. 2010 Thesis https://eprints.ums.edu.my/id/eprint/30644/ https://eprints.ums.edu.my/id/eprint/30644/1/Synthesis%20And%20Characterisation%20Of%20Poly%28Hydroxamic%20Acid%20And%20Amidoxime%29%20Grafted%20Sago%20Starch%20Cheating%20Resin%20For%20Extraction%20Of%20Some%20Metal%20Ions%2024pages.pdf text en public https://eprints.ums.edu.my/id/eprint/30644/2/Synthesis%20And%20Characterisation%20Of%20Poly%28Hydroxamic%20Acid%20And%20Amidoxime%29%20Grafted%20Sago%20Starch%20Cheating%20Resin%20For%20Extraction%20Of%20Some%20Metal%20Ions.pdf text en validuser mphil masters Universiti Malaysia Sabah Faculty of Science and Natural Resources
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English English
topic	QD241-441 Organic chemistry QD415-436 Biochemistry
spellingShingle	QD241-441 Organic chemistry QD415-436 Biochemistry Tan, Boon Teong Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions
description	Sago starch (AGU, anhydro glucose unit) was used to prepared a poly(hydroxamic acid-amidoxime) chelating resin. Methyl acrylate (MA) and acrylonitrile (AN) were firstly graft copolymerized onto sago starch by using a free radical initiating process in which ceric ammonium nitrate was used as an initiator. The percentage of grafting was significantly dependent upon the concentration of mineral acid (H2SO4), ceric ammonium nitrate (CAN), MA, AN, as well as the reaction temperature and period. The highest yield was obtained when the concentrations of H2SO4, CAN, AN and MA were used at 0.7090 mol/L, 4 × 10-3 mol/L, 0.6016 mol/L and 0.4392 mol/L, respectively. The optimum temperature and reaction period were 50 ºC and 90 min, respectively. The conversion of ester and nitrile groups of the poly(methyl acrylate-co-acrylonitrile) (PMA-co-AN) grafted AGU into hydroxamic acid and amidoxime functional groups was then prepared via treatment of hydroxylamine under alkaline solution. The optimum poly(hydroxamic acid-amidoxime) (PHA-PA) chelating resin was obtained when concentration of hydroxylamine hydrochloride was used at 0.8634 mol/L; reaction temperature at 75 ºC; 2 hours of reaction period; while the varying pH value was pH 13. The optimization of the PHA-PA chelating resin was evaluated by measured the sorption capacity of the resin towards copper metal ion with batch method. The PMA-co-AN grafted AGU and PHA-PA were characterized by FT-IR spectroscopy. The chelating behavior of the prepared resin towards cadmium, chromium, copper and zinc metal ions were investigated by using batch method. The binding capacities of the optimum chelating resin towards these metal ions were observed and it exhibited high sorption capacity for copper which observed at 3.576 mmol/g, at pH 6 after 24 hours of reaction period. The maximum binding capacities of the optimum chelating resin towards cadmium, chromium and zinc metal ions were observed at 1.585 mmol/g, 1.658 mmol/g and 1.817 mmol/g, respectively; at pH 6 after 24 hours of reaction period. The optimum resin obtained also showed that it was capable to form a chelate complex when reacted with metal ions in trace level.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Tan, Boon Teong
author_facet	Tan, Boon Teong
author_sort	Tan, Boon Teong
title	Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions
title_short	Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions
title_full	Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions
title_fullStr	Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions
title_full_unstemmed	Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions
title_sort	synthesis and characterisation of poly(hydroxamic acid and amidoxime) grafted sago starch cheating resin for extraction of some metal ions
granting_institution	Universiti Malaysia Sabah
granting_department	Faculty of Science and Natural Resources
publishDate	2010
url	https://eprints.ums.edu.my/id/eprint/30644/1/Synthesis%20And%20Characterisation%20Of%20Poly%28Hydroxamic%20Acid%20And%20Amidoxime%29%20Grafted%20Sago%20Starch%20Cheating%20Resin%20For%20Extraction%20Of%20Some%20Metal%20Ions%2024pages.pdf https://eprints.ums.edu.my/id/eprint/30644/2/Synthesis%20And%20Characterisation%20Of%20Poly%28Hydroxamic%20Acid%20And%20Amidoxime%29%20Grafted%20Sago%20Starch%20Cheating%20Resin%20For%20Extraction%20Of%20Some%20Metal%20Ions.pdf
_version_	1747836566465675264

Synthesis And Characterisation Of Poly(Hydroxamic Acid And Amidoxime) Grafted Sago Starch Cheating Resin For Extraction Of Some Metal Ions

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