Sintesis MnO2 lapisan nipis poros menggunakan templat silika alumina-Aptes

Aplikasi penjerapan pewarna

Translated title of the contribution: Synthesis of porous thin layer MnO2 using silica alumina - Aptes template: Application of dyes adsorption

Siti Zubaidah Hasan, Zuhailie Zakaria, Mohamed Rozali Othman, Muhammad Rahimi Usop

Research output: Contribution to journalArticle

Abstract

Nanoporous manganese oxide (MnO2) with thin layer morphology has been synthesized and applied as commercial synthetic dye absorbent (remazol red, eriochrome black and methylene blue). The modified surface alumina silica with 3-aminopropyltriethoxysilane (APTES) is used in the sonochemical process at room temperature with the presence of 0.1 M potassium permanganate (KMnO4) to produce alumina silica-MnO2 composite. Template removal is performed to get pure nanosized MnO2. The FTIR spectrum shows the presence of MnO2 vibrations in the range of 400 - 600 cm-1 and XRD pattern shows the presence of MnO2-birnessite. The N2 adsorption-desorption isotherm shows that pure MnO2 has a mesoporous pore of 34.8 Å (± 0.4), while the surface area is 252.8 m2/g. The nanosized MnO2 with thin layer morphology obtained shows the ability to absorb eriochrome black and methylene blue dyes with the value of 54% and 99% and adsorption capacity of 0.0024 and 0.0077 mmol/g, respectively. Both the adsorption isotherm of eriochrome black and methylene blue by MnO2 meets the characteristics of Langmuir and Temkin, respectively. Meanwhile, kinetic adsorption of both eriochrom black and methylene blue meets the characteristics of pseudo first order.

Original languageMalay
Pages (from-to)1547-1556
Number of pages10
JournalSains Malaysiana
Volume47
Issue number7
DOIs
Publication statusPublished - 1 Jul 2018

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Aluminum Oxide
Methylene Blue
Silicon Dioxide
Coloring Agents
Adsorption
Potassium Permanganate
Adsorption isotherms
Isotherms
Desorption
Kinetics
Composite materials
Temperature

ASJC Scopus subject areas

  • General

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Sintesis MnO2 lapisan nipis poros menggunakan templat silika alumina-Aptes : Aplikasi penjerapan pewarna. / Hasan, Siti Zubaidah; Zakaria, Zuhailie; Othman, Mohamed Rozali; Usop, Muhammad Rahimi.

In: Sains Malaysiana, Vol. 47, No. 7, 01.07.2018, p. 1547-1556.

Research output: Contribution to journalArticle

Hasan, Siti Zubaidah ; Zakaria, Zuhailie ; Othman, Mohamed Rozali ; Usop, Muhammad Rahimi. / Sintesis MnO2 lapisan nipis poros menggunakan templat silika alumina-Aptes : Aplikasi penjerapan pewarna. In: Sains Malaysiana. 2018 ; Vol. 47, No. 7. pp. 1547-1556.
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abstract = "Nanoporous manganese oxide (MnO2) with thin layer morphology has been synthesized and applied as commercial synthetic dye absorbent (remazol red, eriochrome black and methylene blue). The modified surface alumina silica with 3-aminopropyltriethoxysilane (APTES) is used in the sonochemical process at room temperature with the presence of 0.1 M potassium permanganate (KMnO4) to produce alumina silica-MnO2 composite. Template removal is performed to get pure nanosized MnO2. The FTIR spectrum shows the presence of MnO2 vibrations in the range of 400 - 600 cm-1 and XRD pattern shows the presence of MnO2-birnessite. The N2 adsorption-desorption isotherm shows that pure MnO2 has a mesoporous pore of 34.8 {\AA} (± 0.4), while the surface area is 252.8 m2/g. The nanosized MnO2 with thin layer morphology obtained shows the ability to absorb eriochrome black and methylene blue dyes with the value of 54{\%} and 99{\%} and adsorption capacity of 0.0024 and 0.0077 mmol/g, respectively. Both the adsorption isotherm of eriochrome black and methylene blue by MnO2 meets the characteristics of Langmuir and Temkin, respectively. Meanwhile, kinetic adsorption of both eriochrom black and methylene blue meets the characteristics of pseudo first order.",
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AB - Nanoporous manganese oxide (MnO2) with thin layer morphology has been synthesized and applied as commercial synthetic dye absorbent (remazol red, eriochrome black and methylene blue). The modified surface alumina silica with 3-aminopropyltriethoxysilane (APTES) is used in the sonochemical process at room temperature with the presence of 0.1 M potassium permanganate (KMnO4) to produce alumina silica-MnO2 composite. Template removal is performed to get pure nanosized MnO2. The FTIR spectrum shows the presence of MnO2 vibrations in the range of 400 - 600 cm-1 and XRD pattern shows the presence of MnO2-birnessite. The N2 adsorption-desorption isotherm shows that pure MnO2 has a mesoporous pore of 34.8 Å (± 0.4), while the surface area is 252.8 m2/g. The nanosized MnO2 with thin layer morphology obtained shows the ability to absorb eriochrome black and methylene blue dyes with the value of 54% and 99% and adsorption capacity of 0.0024 and 0.0077 mmol/g, respectively. Both the adsorption isotherm of eriochrome black and methylene blue by MnO2 meets the characteristics of Langmuir and Temkin, respectively. Meanwhile, kinetic adsorption of both eriochrom black and methylene blue meets the characteristics of pseudo first order.

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