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Study on the Phosphate Compound Adsorption onto MgO-KOH/Biochar Adsorbent as Binding Agent in Diffusive Gradient in Thin Film (DGT) Technique for Bioavailable Phosphate Detection

Bulletin of Chemical Reaction Engineering & Catalysis · Vol. ume (2024) · hlm. 521–538

DOI
10.9767/bcrec.20178
ISSN
1978-2993
Terbit
2024-10-30
Penerbit
Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Phosphate compounds, particularly bioavailable forms like PO₄³⁻, are critical contributors to eutrophication. In this study, MgO-KOH/biochar was used as a binding agent in the Diffusive Gradient in Thin Films (DGT) technique to enhance phosphate detection. The adsorbent was synthesized from biochar derived from palm oil waste, activated with KOH to increase surface area, and combined with MgO for enhanced adsorption efficiency. The adsorption process followed a pseudo-second-order kinetic model, indicating that chemical interactions dominated the adsorption mechanism. Under different pH levels and phosphate concentrations, the material showed a good selectivity for orthophosphate, achieving an adsorption capacity of approximately 100 mg/g. Characterization via FTIR, XRD, and SAA confirmed the successful synthesis of MgO-KOH/biochar and its structural properties, which contributed to its performance. Additionally, the MgO-KOH/biochar DGT device demonstrated better efficiency in adsorbing PO₄³⁻ compared to conventional ferrihydrite-based DGT systems, positioning it as a highly effective tool for monitoring bioavailable phosphates in aquatic environments. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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  • University of Indonesia
  • Sriwijaya University
  • National Nuclear Energy Agency of Indonesia
  • National Research and Innovation Agency
  • State University of Jakarta
  • State University of Semarang
  • Indonesia University of Education
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Rekan penulisOrganisasiArtikel bersama
Indah Purnama SariSriwijaya University1
Yustini ArdillahSriwijaya University1
Mohamad Ikhwan RosyidiState University of Semarang1
S. AnwarIndonesia University of Education1
Meri SuhartiniNational Nuclear Energy Agency of Indonesia1
S SudirmanNational Nuclear Energy Agency of Indonesia1
Santoso PrayitnoNational Nuclear Energy Agency of Indonesia1
Budi Indra SetiawanIPB University1
U. ZhafirahUniversity of Indonesia1
Amalia Ekaputri HidayatNational Research and Innovation Agency1
Ridla BakriUniversity of Indonesia1
Mu’izzah Irsyadi PutriUniversity of Indonesia1
Rika Tri YunartiUniversity of Indonesia1
Hanna ShafiraUniversity of Indonesia1
Diana Vanda WelliaAndalas University1
Kiki Adi KurniaBandung Institute of Technology1
Bella Sukma MahadikaUniversity of Indonesia1
Saepurahman SaepurahmanNational Research and Innovation Agency1
Meyliana WulandariState University of Jakarta1
Citra SantikasariState University of Jakarta1
Agustino ZulysUniversity of Indonesia1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.bcrec.id/index.php/bcrec/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Study on the Phosphate Compound Adsorption onto MgO-KOH/Biochar Adsorbent as Binding Agent in Diffusive Gradient in Thin Film (DGT) Technique for Bioavailable Phosphate Detection</dc:title>
	<dc:creator>Permatasari, Indah</dc:creator>
	<dc:creator>Saefumillah, Asep</dc:creator>
	<dc:subject xml:lang="en-US">DGT; Bioavailable Phosphate; MgO-KOH/biochar; Empty Fruit Bunches (EFB) of Palm Tree</dc:subject>
	<dc:description xml:lang="en-US">Phosphate compounds, particularly bioavailable forms like PO₄³⁻, are critical contributors to eutrophication. In this study, MgO-KOH/biochar was used as a binding agent in the Diffusive Gradient in Thin Films (DGT) technique to enhance phosphate detection. The adsorbent was synthesized from biochar derived from palm oil waste, activated with KOH to increase surface area, and combined with MgO for enhanced adsorption efficiency. The adsorption process followed a pseudo-second-order kinetic model, indicating that chemical interactions dominated the adsorption mechanism. Under different pH levels and phosphate concentrations, the material showed a good selectivity for orthophosphate, achieving an adsorption capacity of approximately 100 mg/g. Characterization via FTIR, XRD, and SAA confirmed the successful synthesis of MgO-KOH/biochar and its structural properties, which contributed to its performance. Additionally, the MgO-KOH/biochar DGT device demonstrated better efficiency in adsorbing PO₄³⁻ compared to conventional ferrihydrite-based DGT systems, positioning it as a highly effective tool for monitoring bioavailable phosphates in aquatic environments. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).</dc:description>
	<dc:publisher xml:lang="en-US">Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)</dc:publisher>
	<dc:date>2024-10-30</dc:date>
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	<dc:identifier>https://journal.bcrec.id/index.php/bcrec/article/view/20178</dc:identifier>
	<dc:identifier>10.9767/bcrec.20178</dc:identifier>
	<dc:source xml:lang="en-US">Bulletin of Chemical Reaction Engineering &amp; Catalysis; 2024: BCREC Volume 19 Issue 3 Year 2024 (October 2024); 521-538</dc:source>
	<dc:source>1978-2993</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/view/20178/9731</dc:relation>
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	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20178/5319</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20178/5321</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2024 by Authors, Published by BCREC Publishing Group</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-sa/4.0</dc:rights>
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