Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad

Chemically modified silica gel with amidoxime group was synthesized by silanization with 3-aminopropyltriethoxysilane (APTES) followed by an addition of acrylonitrile (AN) monomer to produce acrylonitrile modified silica (AN-SiO2). The product undergoes amidoximation reaction after being treated wi...

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Main Authors:	Mohd Yusslee, Eddy Mohd Farid, Rahman, Md. Lutfor, Arshad, Sazmal Effendi
Format:	Article
Language:	English
Published:	Universiti Teknologi MARA, Pulau Pinang 2015
Subjects:	Physical and theoretical chemistry Chemicals
Online Access:	http://ir.uitm.edu.my/id/eprint/11987/ http://ir.uitm.edu.my/id/eprint/11987/1/AJ_EDDY%20MOHD%20FARID%20MOHD%20YUSSLEE%20EAJ%2015.pdf

id	uitm-11987
recordtype	eprints
spelling	uitm-119872016-07-20T03:05:16Z http://ir.uitm.edu.my/id/eprint/11987/ Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad Mohd Yusslee, Eddy Mohd Farid Rahman, Md. Lutfor Arshad, Sazmal Effendi Physical and theoretical chemistry Chemicals Chemically modified silica gel with amidoxime group was synthesized by silanization with 3-aminopropyltriethoxysilane (APTES) followed by an addition of acrylonitrile (AN) monomer to produce acrylonitrile modified silica (AN-SiO2). The product undergoes amidoximation reaction after being treated with alkaline hydroxylamine hydrochloride solution to produce amidoxime modified silica (Ami-SiO2). The final product was used as an adsorbent for copper(II) and lead(II) metal ions removal. All the structures of adsorbent and intermediate were characterized by FT-IR, SEM and elemental analysis to justify the presence of organic groups during and after modification. The optimum conditions for the removal of both metals at an initial concentration of 50 mg/L were 2 g/L of dose, pH6 and 2 hours of contact time. The removal of Cu2+ and Pb2+ by Ami-SiO2 was substantially higher compared to its unmodified form. A significant binding property of metal ions by the adsorbent at the optimum conditions was observed and the maximum adsorption capacities for Cu2+ and Pb2+ were 24.88 mg/g and 23.87 mg/g, respectively. The sorption capacities of metal ions by Ami-SiO2 were pH-dependent, and the selectivity of the adsorbent towards Cu2+ was higher compared to Pb2+. The rate of exchange was rapid, which was t1/2 < 10 min for both of Cu2+ and Pb2. Universiti Teknologi MARA, Pulau Pinang 2015 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/11987/1/AJ_EDDY%20MOHD%20FARID%20MOHD%20YUSSLEE%20EAJ%2015.pdf Mohd Yusslee, Eddy Mohd Farid and Rahman, Md. Lutfor and Arshad, Sazmal Effendi (2015) Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad. Esteem Academic Journal, 11 (1). pp. 17-25. ISSN 1675-7939
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Physical and theoretical chemistry Chemicals
spellingShingle	Physical and theoretical chemistry Chemicals Mohd Yusslee, Eddy Mohd Farid Rahman, Md. Lutfor Arshad, Sazmal Effendi Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad
description	Chemically modified silica gel with amidoxime group was synthesized by silanization with 3-aminopropyltriethoxysilane (APTES) followed by an addition of acrylonitrile (AN) monomer to produce acrylonitrile modified silica (AN-SiO2). The product undergoes amidoximation reaction after being treated with alkaline hydroxylamine hydrochloride solution to produce amidoxime modified silica (Ami-SiO2). The final product was used as an adsorbent for copper(II) and lead(II) metal ions removal. All the structures of adsorbent and intermediate were characterized by FT-IR, SEM and elemental analysis to justify the presence of organic groups during and after modification. The optimum conditions for the removal of both metals at an initial concentration of 50 mg/L were 2 g/L of dose, pH6 and 2 hours of contact time. The removal of Cu2+ and Pb2+ by Ami-SiO2 was substantially higher compared to its unmodified form. A significant binding property of metal ions by the adsorbent at the optimum conditions was observed and the maximum adsorption capacities for Cu2+ and Pb2+ were 24.88 mg/g and 23.87 mg/g, respectively. The sorption capacities of metal ions by Ami-SiO2 were pH-dependent, and the selectivity of the adsorbent towards Cu2+ was higher compared to Pb2+. The rate of exchange was rapid, which was t1/2 < 10 min for both of Cu2+ and Pb2.
format	Article
author	Mohd Yusslee, Eddy Mohd Farid Rahman, Md. Lutfor Arshad, Sazmal Effendi
author_facet	Mohd Yusslee, Eddy Mohd Farid Rahman, Md. Lutfor Arshad, Sazmal Effendi
author_sort	Mohd Yusslee, Eddy Mohd Farid
title	Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad
title_short	Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad
title_full	Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad
title_fullStr	Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad
title_full_unstemmed	Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad
title_sort	cu2+ & pb2+ removal by chemically modified silica gel with amidoxime / eddy mohd farid mohd yusslee, md. lutfor rahman and sazmal effendi arshad
publisher	Universiti Teknologi MARA, Pulau Pinang
publishDate	2015
url	http://ir.uitm.edu.my/id/eprint/11987/ http://ir.uitm.edu.my/id/eprint/11987/1/AJ_EDDY%20MOHD%20FARID%20MOHD%20YUSSLEE%20EAJ%2015.pdf
first_indexed	2023-09-18T22:48:48Z
last_indexed	2023-09-18T22:48:48Z
_version_	1777417404783001600

Cu2+ & Pb2+ removal by chemically modified silica gel with amidoxime / Eddy Mohd Farid Mohd Yusslee, Md. Lutfor Rahman and Sazmal Effendi Arshad

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