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Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate.

Researchers worldwide have extensively studied metal organic framework (MOF) for its adsorption capabilities. Despite its potential, challenges such as particle agglomeration, low porosity and low surface area persist. This study aims to enhance the performance of MIL-100(Fe) for As(V) adsorption us...

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Main Authors: Chia, Rickson Jun Jay, Lau, Woei Jye, Yusof, Norhaniza, Ismail, Ahmad Fauzi
Format: Article
Published: Elsevier Ltd. 2023
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/106613/
http://dx.doi.org/10.1016/j.jece.2023.110688
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spelling my.utm.1066132024-07-09T08:03:03Z http://eprints.utm.my/106613/ Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate. Chia, Rickson Jun Jay Lau, Woei Jye Yusof, Norhaniza Ismail, Ahmad Fauzi TP Chemical technology Researchers worldwide have extensively studied metal organic framework (MOF) for its adsorption capabilities. Despite its potential, challenges such as particle agglomeration, low porosity and low surface area persist. This study aims to enhance the performance of MIL-100(Fe) for As(V) adsorption using a feasible and straightforward technique. To achieve this, benzoic acid was introduced as a modulator for ligand exchange, creating vacancy defects within the MIL-100(Fe) structure, resulting in defective MIL-100(Fe)-BA1. Through TEM imaging, visible deformations were observed on the surface of the adsorbent, with an average particle size of approximately 200 nm. XRD spectrum analysis revealed a reduction in peak intensity at 2–5°, indicating reduced crystallinity in the MIL-100(Fe) due to the presence of defects. Meanwhile, BET analysis demonstrated a significantly larger surface area for defective MIL-100(Fe) at 1081.09 m2/g, compared to the pristine MIL-100(Fe) with a surface area of 844.00 m2/g. Regarding adsorptive performance, the defective MIL-100(Fe) exhibited higher As(V) adsorption capacity (173.82 mg/g at pH8) than the pristine form (70 mg/g). This improvement can be attributed to the larger pore size of the particles and the exceptional affinity of As(V) anions towards the bulk Lewis Acid sites present on the surface of defective MIL-100(Fe). However, it is important to note that for effective As(V) adsorption by defective MIL-100(Fe)-BA1, it is crucial to eliminate competing compounds such as carbonate and phosphate anions from the water sources. Elsevier Ltd. 2023-10 Article PeerReviewed Chia, Rickson Jun Jay and Lau, Woei Jye and Yusof, Norhaniza and Ismail, Ahmad Fauzi (2023) Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate. Journal of Environmental Chemical Engineering, 11 (5). NA-NA. ISSN 2213-3437 http://dx.doi.org/10.1016/j.jece.2023.110688 DOI:10.1016/j.jece.2023.110688
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Chia, Rickson Jun Jay
Lau, Woei Jye
Yusof, Norhaniza
Ismail, Ahmad Fauzi
Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate.
description Researchers worldwide have extensively studied metal organic framework (MOF) for its adsorption capabilities. Despite its potential, challenges such as particle agglomeration, low porosity and low surface area persist. This study aims to enhance the performance of MIL-100(Fe) for As(V) adsorption using a feasible and straightforward technique. To achieve this, benzoic acid was introduced as a modulator for ligand exchange, creating vacancy defects within the MIL-100(Fe) structure, resulting in defective MIL-100(Fe)-BA1. Through TEM imaging, visible deformations were observed on the surface of the adsorbent, with an average particle size of approximately 200 nm. XRD spectrum analysis revealed a reduction in peak intensity at 2–5°, indicating reduced crystallinity in the MIL-100(Fe) due to the presence of defects. Meanwhile, BET analysis demonstrated a significantly larger surface area for defective MIL-100(Fe) at 1081.09 m2/g, compared to the pristine MIL-100(Fe) with a surface area of 844.00 m2/g. Regarding adsorptive performance, the defective MIL-100(Fe) exhibited higher As(V) adsorption capacity (173.82 mg/g at pH8) than the pristine form (70 mg/g). This improvement can be attributed to the larger pore size of the particles and the exceptional affinity of As(V) anions towards the bulk Lewis Acid sites present on the surface of defective MIL-100(Fe). However, it is important to note that for effective As(V) adsorption by defective MIL-100(Fe)-BA1, it is crucial to eliminate competing compounds such as carbonate and phosphate anions from the water sources.
format Article
author Chia, Rickson Jun Jay
Lau, Woei Jye
Yusof, Norhaniza
Ismail, Ahmad Fauzi
author_facet Chia, Rickson Jun Jay
Lau, Woei Jye
Yusof, Norhaniza
Ismail, Ahmad Fauzi
author_sort Chia, Rickson Jun Jay
title Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate.
title_short Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate.
title_full Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate.
title_fullStr Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate.
title_full_unstemmed Synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate.
title_sort synthesis of novel benzoic acid modified metal organic framework for adsorptive removal of arsenate.
publisher Elsevier Ltd.
publishDate 2023
url http://eprints.utm.my/106613/
http://dx.doi.org/10.1016/j.jece.2023.110688
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score 13.251813

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