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Enhanced Photocatalytic Performance and Kinetic Improvement of Reusable W-based POM Composite for Produced Water Treatment

Bulletin of Chemical Reaction Engineering & Catalysis · Vol. ume (2026) · hlm. 370–384

DOI
10.9767/bcrec.20616
ISSN
1978-2993
Terbit
2026-08-30
Penerbit
Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Produced water treatment remains a major challenge due to its complex contaminant composition and the limited efficiency and reusability of conventional photocatalysts. Polyoxometalate (POM)-based materials offer high redox activity and structural tunability. This study presents a novel tungsten-based polyoxometalate (W-based POM) composite with enhanced photocatalytic performance and kinetic superiority for produced water treatment. The objective of this work was to synthesize a reusable W-based POM composite and systematically evaluate its photocatalytic activity, adsorption behavior, kinetics, and stability. The composite was synthesized via a solvothermal method using Na₂WO₄·2H₂O and DMF. Photocatalytic experiments were performed by varying catalyst dosage (0.1–0.5 g), irradiation time (30-180 min), and reusability cycles. The W-based POM composite exhibited a rhombic polyhedral morphology with a well-organized three-dimensional POM framework, reduced crystallite size (14.8 nm), and compressive lattice strain, contributing to improved charge mobility. Optical analysis revealed a red-shift in the absorption edge, reducing the band gap from 2.80 eV to 2.25 eV and enhancing visible-light utilization. Photocatalytic experiments demonstrated high treatment efficiency, achieving 90% NH₃–N and 84% total dissolved solids (TDS) removal under UV irradiation within 180 minutes at an optimal dosage of 0.3 g. Adsorption behavior followed the Dubinin–Radushkevich and Temkin isotherm models, indicating an ion-exchange-dominated mechanism, while kinetic analysis revealed a multi-step process governed by intraparticle diffusion. The composite maintained stable performance over three consecutive cycles without significant activity loss. Overall, the results highlight the strong potential of W-based POM composites as efficient, reusable, and scalable photocatalysts for advanced produced water treatment. Copyright © 2026 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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  • Diponegoro University
  • Universiti Teknologi MARA
  • State University of Semarang
  • Graz University of Technology
  • Universitas Gadjah Mada
  • Universitas Wahid Hasyim
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Rekan penulisOrganisasiArtikel bersama
Muhammad Haqqiyuddin RobbaniAfiliasi tidak diketahui2
Hadiyanto HadiyantoDiponegoro University2
Dhoni HartantoState University of Semarang1
Ratna Dewi KusumaningtyasState University of Semarang1
Haniif PrasetiawanState University of Semarang1
Miradatul Najwa Muhd RodhiUniversiti Teknologi MARA1
Fazlena HamzahUniversiti Teknologi MARA1
Muhammad Zarin Amin ZainalUniversiti Teknologi MARA1
Harumi VenyUniversiti Teknologi MARA1
Rizka AmaliaDiponegoro University1
Ratnawati RatnawatiDiponegoro University1
Diah Susetyo RetnowatiDiponegoro University1
Moh DjaeniAfiliasi tidak diketahui1
Fransisca Widhi MahatmantiState University of Semarang1
Devi Yuni SusantiUniversitas Gadjah Mada1
Setia Budi SasongkoDiponegoro University1
Laeli KurniasariUniversitas Wahid Hasyim1
Didi Dwi AnggoroDiponegoro University1
Nur RokhatiDiponegoro University1
Nor Basid Adiwibawa PrasetyaDiponegoro University1
Asep Muhamad SamsudinDiponegoro University1
Kharissa NasherDiponegoro University1
Dhiky WahyudiDiponegoro University1
Michaela RoschgerGraz University of Technology1
Viktor HackerGraz University of Technology1
Muhammad Fahmi HakimDiponegoro University1
Bakti JosDiponegoro University1
Hargono HargonoDiponegoro University1
Bambang PramudonoDiponegoro University1
Harsa PawignyaDiponegoro University1
Widayat WidayatDiponegoro University1
Etika Ratna NoerDiponegoro University1
Rinta AmaliaDiponegoro University1

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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">Enhanced Photocatalytic Performance and Kinetic Improvement of Reusable W-based POM Composite for Produced Water Treatment</dc:title>
	<dc:creator>Kusworo, Tutuk Djoko</dc:creator>
	<dc:creator>Kumoro, Andri Cahyo</dc:creator>
	<dc:creator>Veda, Adalia</dc:creator>
	<dc:creator>Mafazan, Rafi</dc:creator>
	<dc:creator>Puspa, Meitri Bella</dc:creator>
	<dc:creator>Azizah, Dita Aulia</dc:creator>
	<dc:creator>Utomo, Dani Puji</dc:creator>
	<dc:subject xml:lang="en-US">Polyoxometalate (POM); photocatalysis; produced water treatment; adsorption isotherms;  band-gap engineering</dc:subject>
	<dc:description xml:lang="en-US">Produced water treatment remains a major challenge due to its complex contaminant composition and the limited efficiency and reusability of conventional photocatalysts. Polyoxometalate (POM)-based materials offer high redox activity and structural tunability. This study presents a novel tungsten-based polyoxometalate (W-based POM) composite with enhanced photocatalytic performance and kinetic superiority for produced water treatment. The objective of this work was to synthesize a reusable W-based POM composite and systematically evaluate its photocatalytic activity, adsorption behavior, kinetics, and stability. The composite was synthesized via a solvothermal method using Na₂WO₄·2H₂O and DMF. Photocatalytic experiments were performed by varying catalyst dosage (0.1–0.5 g), irradiation time (30-180 min), and reusability cycles. The W-based POM composite exhibited a rhombic polyhedral morphology with a well-organized three-dimensional POM framework, reduced crystallite size (14.8 nm), and compressive lattice strain, contributing to improved charge mobility. Optical analysis revealed a red-shift in the absorption edge, reducing the band gap from 2.80 eV to 2.25 eV and enhancing visible-light utilization. Photocatalytic experiments demonstrated high treatment efficiency, achieving 90% NH₃–N and 84% total dissolved solids (TDS) removal under UV irradiation within 180 minutes at an optimal dosage of 0.3 g. Adsorption behavior followed the Dubinin–Radushkevich and Temkin isotherm models, indicating an ion-exchange-dominated mechanism, while kinetic analysis revealed a multi-step process governed by intraparticle diffusion. The composite maintained stable performance over three consecutive cycles without significant activity loss. Overall, the results highlight the strong potential of W-based POM composites as efficient, reusable, and scalable photocatalysts for advanced produced water treatment. Copyright © 2026 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>2026-08-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
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	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.bcrec.id/index.php/bcrec/article/view/20616</dc:identifier>
	<dc:identifier>10.9767/bcrec.20616</dc:identifier>
	<dc:source xml:lang="en-US">Bulletin of Chemical Reaction Engineering &amp; Catalysis; 2026: BCREC Volume 21 Issue 2 Year 2026 (August 2026); 370-384</dc:source>
	<dc:source>1978-2993</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/view/20616/9933</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20616/6167</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2026 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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