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Sains Malaysiana 52(8)(2023): 2353-2375
http://doi.org/10.17576/jsm-2023-5208-14
Enhancing
Arsenate Removal Efficiency using Seawater Bittern-Derived MgO Nanoparticles/PVDF-HFP Electrospun Nanofibre
Composites
(Meningkatkan Kecekapan Penyingkiran Arsenat menggunakan Nanopartikel Air Laut Terbitan-Bittern MgO/Komposit Nanozarah Elektroputaran PVDF-HFP)
ASNAN RINOVIAN1,5,*,
MUHAMAD NASIR2, MUHAMMAD ALI ZULFIKAR3, SWASMI PURWAJANTI2,
NUGRAHA1,4, NURRAHMI HANDAYANI2,3, I GUSTI AGUNG
SURADHARMIKA6 & FITRI DARA2
1Master Program in Nanotechnology, Institut Teknologi Bandung,
40132, Bandung, Indonesia
2Research Center for Environmental and Clean Technology,
National Research and Innovation Agency (BRIN), 40135, Bandung, Indonesia
3Department of Chemistry, Institut Teknologi Bandung, 40132,
Bandung, Indonesia
4Department of Engineering Physics, Institut Teknologi
Bandung, 40132, Bandung, Indonesia
5Research Center for Mining Technology, National Research and
Innovation Agency (BRIN), 35361, Lampung, Indonesia
6Research Center for Advanced Materials, National Research and
Innovation Agency (BRIN), 15314, Banten, Indonesia
Received: 30 May
2023/Accepted: 13 July 2023
Abstract
MgO
nanoparticles (MgO NPs) incorporated PVDF-HFP nanofibers have been
synthesized using the electrospinning method to remove arsenic from polluted
water. MgO nanoparticles were synthesized from seawater bitterns and used as
magnesium precursors. The synthesized materials were characterized using
various techniques, and their adsorption capacities were evaluated against
arsenic under different conditions. The results showed that the maximum
adsorption for As(V) adsorption was 41.47 mg g-1 for PVDF-HFP/MgO
30% (w/w), which equals 179.69 mg g-1 based on the weight of bare
MgO NPs and achieved at pH 11, a contact time of 420 minutes, and an adsorbent
weight of 0.0125 g. Incorporating MgO NPs into the nanofiber matrix can enhance
its stability, further increase the adsorption capacity. This study
demonstrates the potential of using PVDF-HFP/MgO nanofiber composites to treat
arsenic-containing wastewater and further provide
commercial benefits for seawater bitterns by serving as a precursor for
producing functional nanomaterials.
Keywords: Arsenic removal; MgO nanoparticles; nanofiber
composites; PVDF-HFP nanofibers; seawater bittern
Abstrak
Nanozarah MgO (MgO NPs) yang tergabung PVDF-HFP nanozarah telah disintesis menggunakan kaedah pemintalan elektrik untuk mengeluarkan arsenik daripada air tercemar.Nanozarah MgO telah disintesis daripada bittern air laut dan digunakan sebagai prekursor magnesium. Bahan yang disintesis telah dicirikan menggunakan pelbagai teknik dan kapasiti penjerapannya dinilai terhadap arsenik di bawah keadaan yang berbeza.Hasil menunjukkan bahawa penjerapan maksimum bagi penjerapan As(V) ialah 41.47 mg g-1 untuk PVDF-HFP/MgO 30%
(w/w) yang bersamaan dengan 179.69 mg g-1 berdasarkan berat NP MgO kosong dan dicapai pada pH 11, masa sentuhan 420 minit dan berat penjerap 0.0125 g. Mencampurkan NP MgO ke dalam matriks nanozarah boleh meningkatkan kestabilannya, seterusnya meningkatkan kemampuan penjerapan. Kajian ini menunjukkan potensi penggunaan komposit nanozarah PVDF-HFP/MgO untuk merawat air sisa yang mengandungi arsenik dan seterusnya memberikan faedah komersial untuk bittern air laut dengan berfungsi sebagai pendahulu untuk menghasilkan bahan nano berfungsi.
Kata kunci:
Bittern air laut; komposit nanozarah; nanopartikel MgO; penyingkiran arsenik; PVDF-HFP nanozarah
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*Corresponding
author; email: asna002@brin.go.id
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