kebolehserapan metilena biru oleh hidrogel selulosa bakteria teradiasi gamma menggunakan isoterma Langmuir dan Freundlich

Translated title of the contribution: Absorption ability of gamma irridiated bacterial cellulose hydrogel using Langmuir and Freundlich isotherme

Mohamad Azwani Shah Mat Lazim, Adil Hakam Osman, Maryam Mokhtarom

Research output: Contribution to journalArticle

Abstract

This study aimed to produce a responsive hydrogel based on bacterial cellulose obtained from Nata de Coco (NDC) and acrylic acid (AA). Three samples were prepared by ratio of NDC:AA and labelled as hydrogel A [1:1], B [2:1] and C [3:1]. The grafting of AA onto NDC molecules using gamma radiation polymerisation (GRP) method resulting in the formation of NDC-AA hydrogel (source: 60Co). The high energy used in this method produced free radicals such as OH•, H•, H2O2 and H2. These free radicals attacked the functional groups of NDC and AA, allowing AA to be grafted onto NDC. Hydrogel B [2:1] was selected for further test in methylene blue (MB) adsorption using UV-VIS spectrophotometer. All data were analyzed and adjusted according to Langmuir and Freundlich isotherm model. The comparison of constant in both samples were analyzed and found that hydrogel B [2:1] data has fitted both models. Therefore, the results obtained supported the ability of hydrogel B [2:1] as an alternative MB adsorbent.

Original languageMalay
Pages (from-to)715-723
Number of pages9
JournalSains Malaysiana
Volume47
Issue number4
DOIs
Publication statusPublished - 1 Apr 2018

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Hydrogel
Cellulose
Methylene Blue
Free Radicals
Ultraviolet spectrophotometers
Gamma rays
Adsorbents
Functional groups
Isotherms
acrylic acid
Polymerization
Adsorption
Molecules

ASJC Scopus subject areas

  • General

Cite this

kebolehserapan metilena biru oleh hidrogel selulosa bakteria teradiasi gamma menggunakan isoterma Langmuir dan Freundlich. / Mat Lazim, Mohamad Azwani Shah; Osman, Adil Hakam; Mokhtarom, Maryam.

In: Sains Malaysiana, Vol. 47, No. 4, 01.04.2018, p. 715-723.

Research output: Contribution to journalArticle

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abstract = "This study aimed to produce a responsive hydrogel based on bacterial cellulose obtained from Nata de Coco (NDC) and acrylic acid (AA). Three samples were prepared by ratio of NDC:AA and labelled as hydrogel A [1:1], B [2:1] and C [3:1]. The grafting of AA onto NDC molecules using gamma radiation polymerisation (GRP) method resulting in the formation of NDC-AA hydrogel (source: 60Co). The high energy used in this method produced free radicals such as OH•, H•, H2O2 and H2. These free radicals attacked the functional groups of NDC and AA, allowing AA to be grafted onto NDC. Hydrogel B [2:1] was selected for further test in methylene blue (MB) adsorption using UV-VIS spectrophotometer. All data were analyzed and adjusted according to Langmuir and Freundlich isotherm model. The comparison of constant in both samples were analyzed and found that hydrogel B [2:1] data has fitted both models. Therefore, the results obtained supported the ability of hydrogel B [2:1] as an alternative MB adsorbent.",
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AB - This study aimed to produce a responsive hydrogel based on bacterial cellulose obtained from Nata de Coco (NDC) and acrylic acid (AA). Three samples were prepared by ratio of NDC:AA and labelled as hydrogel A [1:1], B [2:1] and C [3:1]. The grafting of AA onto NDC molecules using gamma radiation polymerisation (GRP) method resulting in the formation of NDC-AA hydrogel (source: 60Co). The high energy used in this method produced free radicals such as OH•, H•, H2O2 and H2. These free radicals attacked the functional groups of NDC and AA, allowing AA to be grafted onto NDC. Hydrogel B [2:1] was selected for further test in methylene blue (MB) adsorption using UV-VIS spectrophotometer. All data were analyzed and adjusted according to Langmuir and Freundlich isotherm model. The comparison of constant in both samples were analyzed and found that hydrogel B [2:1] data has fitted both models. Therefore, the results obtained supported the ability of hydrogel B [2:1] as an alternative MB adsorbent.

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KW - Gamma radiation technique

KW - Hydrogel

KW - Methylene blue

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