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All Journal VALENSI Jurnal Kesehatan Lingkungan indonesia AL KAUNIYAH FLYWHEEL : Jurnal Teknik Mesin Untirta Indonesian Journal of Chemistry Jurnal Kartika Kimia Molekul: Jurnal Ilmiah Kimia Jurnal Riset Teknologi Industri ASEAN Journal of Community Engagement Journal of Community Service Makara Journal of Science Molekul: Jurnal Ilmiah Kimia Bulletin of Chemical Reaction Engineering & Catalysis LIMNOTEK Jurnal Sains Materi Indonesia Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Agustino Zulys
Departement Of Chemistry, Faculty Of Mathematics And Natural Science, Universitas Indonesia, Depok, West Java 1624, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Photocatalytic Degradation of Methylene Blue and Methyl Orange by Y-PTC Metal-Organic Framework Adawiah Adawiah; Muhammad Derry Luthfi Yudhi; Agustino Zulys
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 7, No. 2, November 2021
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v7i2.22267

Abstract

The yttrium based metal-organic framework (MOF) Y-PTC was synthesized by the solvothermal method using perylene as the linker and yttrium as metal ion. This study aims to assess the photocatalytic activity of yttrium-perylenetetracarboxylate (Y-PTC) metal-organic framework (MOF) toward methylene blue and methyl orange under visible light irradiation. The results of the FTIR analysis showed that Y-PTC MOF had a different structure and composition from its precursor (Na4PTC). The Y-PTC MOF has a bandgap energy value of 2.20 eV with a surface area of 47.7487 m2/g. The SEM-EDS analysis showed an elemental composition of yttrium, carbon, and oxygen, were 6.9%, 72.1% and 20.7%, respectively. Furthermore, Y-PTC MOF was able to adsorb dyes at the optimum by 78.10% and 35.57% toward methylene blue (MB) and methyl orange (MO) at the dispersion period of 60 mins. Y-PTC MOF exhibited photocatalytic activity towards the degradation of methylene blue and methyl orange under visible light irradiation. The addition of H2O2 inhibited Y-PTC photocatalytic activity towards MO degradation from 50.89% to 26.38%. In contrast to MO, the addition of H2O2 had a positive effect on MB, which increased the degradation from 87.56% to 91.65%. Therefore, Y-PTC MOF possessed the potential of a photocatalyst material in dyes degradation under visible light irradiation.
Synthesis of Zr/La-BTC Bimetallic Metal-Organic Framework (MOF) for Oleic Acid Esterification Zulys, Agustino; Adawiah, Adawiah; Suminta, Tiara Amalia; Abdullah, Iman; Fadhilla, Rizkha; Nasruddin, Nasruddin; Mabuchi, Takuya
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.37621

Abstract

Biodiesel plays an essential role in renewable energy as an alternative fuel to tackle the challenges of global warming, environmental degradation, and alternative fossil fuels. Oleic acid can be converted into biodiesel by the esterification process, which employs heterogeneous catalysts such as metal-organic frameworks (MOF). In this study, Zr/La-BTC MOFs were used as different kinds of catalysts to change oleic acid into biodiesel. The characterization results of Zr-BTC, La-BTC, and Zr/La-BTC using FTIR and XRD show that the MOF has been successfully formed. The crystallite sizes for La-BTC, and Zr/La-BTC MOFs are 15.7407 nm and 39.0392 nm, respectively. The surface area of Zr-BTC, La-BTC, and Zr/La-BTC MOFs are 167.101 m2/g, 12.328 m2/g, and 4.764 m2/g. The morphology of Zr-BTC MOF using SEM is irregular, La-BTC is rod-shaped crystal, and Zr/La-BTC is like a knot bond with a narrow waist. The most optimal reaction was obtained at a 5% (w/w) catalyst dosage of total oleic acid and methanol (1:60 mol), 65 °C, and a reaction time of 4 hours, producing 78.11% oleic acid conversion. GC-MS analysis identified that the biodiesel contains oleic acid, palmitic acid, methyl oleate, and methyl palmitate.
Lanthanum Metal-Organic Frameworks as Binding Agent in Diffusive Gradients in Thin Films (DGT) for Phosphate Monitoring: Influence of pH and Competing Anions Citra Santikasari; Asep Saefumillah; Agustino Zulys; Meyliana Wulandari
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 12, No. 1, May 2026
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v12i1.50201

Abstract

Phosphate mobility and bioavailability play critical roles in aquatic ecosystems, yet conventional monitoring methods are limited by sample disturbance and poor representation of in-situ conditions. The Diffusive Gradients in Thin Films (DGT) technique overcomes these limitations by enabling passive, in-situ measurement that accurately reflects natural solute diffusion and sediment resupply dynamics. This study introduces lanthanum metal-organic frameworks (La-MOF) as a novel selective binding agent in a DGT for in situ phosphate monitoring. La-MOF was synthesized via solvothermal using DMF (La-MOF 1) and mixed DMF/water (La-MOF 2), then characterized by XRD, FTIR, SEM-EDX, and BET analysis. Structural characterization confirmed successful framework formation for both materials. La-MOF 2 exhibited improved crystallinity, more homogeneous morphology, higher specific surface area (84.96 m2 g-1) and larger pore volume (0.090 cc g-1) compared to La-MOF 1. The selectivity performance of La-MOF DGT was evaluated across pH 2-11 and in the presence of competing anions (NO3-, SO42-, and CO32-). Optimal phosphate uptake occurred at pH 4-7, corresponding to the predominance of H2PO4- species. The inhibitory effect on phosphate uptake followed the order: NO3⁻ > CO3²⁻ > SO4²⁻. These findings demonstrate the potential applicability of La-MOF as a selective binding agent for DGT-based phosphate monitoring in aquatic environments.
Co-Authors Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah adawiah adawiah, adawiah Ade Mulyawan Adriana, Elva Dissa Aisyah Safrina Amelia Rosvita Andriyani, Leni Ary Maulana Asep Mohamad Noor Asep Saefumillah Awalina Satya Bale, Uly Fitria Bambang Heru Susanto, Bambang Heru Chalid, Mochamad Citra Santikasari Dede Sukandar Defania, Mella Didin Sahidin Winatapura Dini Rahma Bintari Ely Setiawan Fadhilla, Rizka Fadhilla, Rizkha Fajar Sumi Lestari Farhah Syahidatul Mala Farhan Maulana Azhar Ginting, Grace Gardenia Hadriyani, Rizka Haidir, Banu Muhammad Harahap, Lina Yuliana Hayati Sari Hasibuan Iman Abdullah Isalmi Aziz Istiqomah, Muhsinatul Iwan Susanto Jan Setiawan Jarnuzi Gunlazuardi Kurnia Trinopiawan Latifah Tulhusna Lina Yuliana Harahap Mabuchi, Takuya Mai Saroh Ambar Pramukti Masripah Masripah Meyliana Wulandari Muhammad Derry Luthfi Yudhi Muhammad Derry Luthfi Yudhi Muhammad Fathurrahman Muhammad Ghozali Muhammad Shofyan Gunawan Nanda Saridewi Nanda Saridewi Nanda Saridewi, Nanda Nasruddin Nasruddin Nasruddin Nova Anita Nur Mahrunnisa Nurhasni Nurhasni Permana, Sulaksana Pramukti, Mai Saroh Ambar Ramadhan, Fitri Nur Ridla Bakri Riesna Prassanti Rika Tri Yunarti Risma Nur Fitria Salman Farishi Sari Hasnah Dewi Selviana Rustanti Siti Mutia Mawaddah Siti Nurbayti Siti Nurbayti Siti Nurbayti Siti Nurbayti Soedarsono, Johny W. Sri Komala Sri Komala Suminta, Tiara Amalia Syauqi, Muhammad Iqbal Takhwifa, Famila Tulhusna, Latifah Wahyudin Wahyudin Widiantari Nofriandani Wisnu Ari Adi Wulandari Oktavia Yani, Sela Vivi