Sintesis Mno2 nanobunga poros menggunakan templat silika-APTES

Translated title of the contribution: Synthesis of porous MnO2 nanoflower using silica-APTES template

Research output: Contribution to journalArticle

Abstract

The aim of this study is to prepare porous MnO2 nanoflower to be used as an adsorbent for commercial synthetic dyes (remazol red, eriochrome black and methylene blue). The modified surface of the silica with 3-aminopropyl triethoxysilane (APTES) was used in sonochemical process at room temperature in the presence of 0.1M KMnO4 to produce composite silica-MnO2 and later nano-MnO2 after removal of the template. FTIR spectra indicate the presence of MnO2vibration in the range of 400-600 cm-1. N2 sorption-desorption analysis showed pure MnO2 is mesopores with the value of 51.9 Å (± 1.4), while the MnO2 surface area is 123.6 m2/g. MnO2nanoflower adsorbent obtained demonstrate the ability to adsorb dye eriochrome black and methylene blue only. Both adsorption isotherms of eriochrome black and methylene blue by MnO2 meet the characteristics of Langmuir model.

Original languageMalay
Pages (from-to)1276-1288
Number of pages13
JournalMalaysian Journal of Analytical Sciences
Volume21
Issue number6
DOIs
Publication statusPublished - 1 Dec 2017

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Nanoflowers
Methylene Blue
Silicon Dioxide
Adsorbents
Coloring Agents
Adsorption isotherms
Sorption
Desorption
Composite materials
triethoxysilane
Temperature

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Sintesis Mno2 nanobunga poros menggunakan templat silika-APTES. / Hasan, Siti Zubaidah; Othman, Mohamed Rozali; Usop, Muhammad Rahimi.

In: Malaysian Journal of Analytical Sciences, Vol. 21, No. 6, 01.12.2017, p. 1276-1288.

Research output: Contribution to journalArticle

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abstract = "The aim of this study is to prepare porous MnO2 nanoflower to be used as an adsorbent for commercial synthetic dyes (remazol red, eriochrome black and methylene blue). The modified surface of the silica with 3-aminopropyl triethoxysilane (APTES) was used in sonochemical process at room temperature in the presence of 0.1M KMnO4 to produce composite silica-MnO2 and later nano-MnO2 after removal of the template. FTIR spectra indicate the presence of MnO2vibration in the range of 400-600 cm-1. N2 sorption-desorption analysis showed pure MnO2 is mesopores with the value of 51.9 {\AA} (± 1.4), while the MnO2 surface area is 123.6 m2/g. MnO2nanoflower adsorbent obtained demonstrate the ability to adsorb dye eriochrome black and methylene blue only. Both adsorption isotherms of eriochrome black and methylene blue by MnO2 meet the characteristics of Langmuir model.",
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AB - The aim of this study is to prepare porous MnO2 nanoflower to be used as an adsorbent for commercial synthetic dyes (remazol red, eriochrome black and methylene blue). The modified surface of the silica with 3-aminopropyl triethoxysilane (APTES) was used in sonochemical process at room temperature in the presence of 0.1M KMnO4 to produce composite silica-MnO2 and later nano-MnO2 after removal of the template. FTIR spectra indicate the presence of MnO2vibration in the range of 400-600 cm-1. N2 sorption-desorption analysis showed pure MnO2 is mesopores with the value of 51.9 Å (± 1.4), while the MnO2 surface area is 123.6 m2/g. MnO2nanoflower adsorbent obtained demonstrate the ability to adsorb dye eriochrome black and methylene blue only. Both adsorption isotherms of eriochrome black and methylene blue by MnO2 meet the characteristics of Langmuir model.

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