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Sonochemical Assisted Synthesis of Cr-PTC Metal Organic Framework, ZnO, and Fe3O4 Composite and Their Photocatalytic Activity in Methylene Blue Degradation Nurbayti, Siti; Adawiah, Adawiah; Bale, Uly Fitria; Fadhilla, Rizka; Ramadhan, Fitri Nur; Zulys, Agustino; Sukandar, Dede; Saridewi, Nanda; Tulhusna, Latifah
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 2 Year 2024 (August 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20156

Methylene blue pollutants can be treated by photocatalytic methods using metal oxide-based semiconductor materials and metal organic framework (MOF). These two materials are often coupled into a composite to improve their physicochemical properties and catalytic activity. This research focuses on the synthesis of composites based on Cr-PTC MOF, ZnO, and Fe3O4 by the sonochemical method. The obtained composites were characterized and tested for catalytic activity in methylene blue pollutant degradation in an aqueous system under acidic conditions (pH = 5). Our investigation shows that the Cr-PTC@Fe3O4 composite possesses the lowest band gap energy of 1.86 eV and achieves the highest photocatalytic activity in methylene blue degradation at solution pH = 5, with a percent degradation of 84.36%. The sonochemical incorporation of Fe3O4 and Cr-PTC MOF is able to fabricate materials in a short time with better photocatalytic activity in degrading methylene blue than the single materials. 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).

Synthesis of Metal-Organic Framework (MOF) Cr-PTC-HIna for Heavy Metal Ion Adsorption Nurhasni, Nurhasni; Adawiah, Adawiah; Wahyudin, Wahyudin; Hadriyani, Rizka; Andriyani, Leni; Fadhilla, Rizkha; Zulys, Agustino; Sukandar, Dede
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 1 Year 2024 (April 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20069

As an adsorbent material, Metal-Organic Framework (MOF) provides several advantages, such as large surface area and pore volume, as well as stability in aqueous systems both in acidic, basic, and neutral conditions. The research successfully made a metal organic framework (MOF) from chromium and perylene that was modulated by isonicotinic acid. This was done using three different methods: hydrothermal (Cr-PTC-HIna-HT), solvothermal (Cr-PTC-HIna-ST), and sonochemical (Cr-PTC-HIna-SC). The Cr-PTC-HIna-SC showed the greatest Pb2+ ion adsorption capacity. The optimum adsorption of Pb2+ ions occurred at 150 ppm Pb2+ ion concentration, pH 5, 90 minutes of contact time, and an adsorption capacity of 149.95 mg/g at 35 °C. The dominant adsorption isotherm model is the Langmuir isotherm model with R2 = 0.9867 and follows the pseudo-second-order. The selectivity test showed that Cr-PTC-HIna-SC MOF could adsorb more Cd2+ ions than Pb2+ ions, with 250 mg/g being the best amount.

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

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.

Green Synthesis of Cu-BDC Nanosheets for Methylene Blue Degradation Saridewi, Nanda; Zulys, Agustino; Bakri, Ridla
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 4 Year 2025 (December 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20458

Metal Organic Frameworks (MOFs) with two-dimensional (2D) nanosheet morphology possess unique surface characteristics, making them highly favourable for photocatalytic applications. This study synthesised Cu²⁺-based MOF nanosheets using a modified three-layer method. This approach is relatively simple, energy-efficient, and qualifies as a green synthesis method. The MOFs were prepared from copper(II) nitrate trihydrate (Cu(NO₃)₂·3H₂O) as the metal precursor and 1,4-benzenedicarboxylic acid (H₂BDC) as the organic linker, aiming to evaluate their photocatalytic activity for methylene blue degradation. The resulting Cu-BDC nanosheets displayed characteristic FTIR absorption bands at 1501 and 1547 cm⁻¹ corresponding to symmetric and asymmetric C=O stretching, 1394 cm⁻¹ for C–O stretching, and peaks at 751 and 569 cm⁻¹ associated with Cu–O vibrations. The XRD analysis revealed four sharp peaks at 2θ values of 8.2°, 10.2°, 16.1°, and 34.1°, indicating good crystallinity with a calculated crystallite size of 22.03 nm, and the bandgap energy is 3.89 eV. Cu-BDC nanosheets exhibit a thin sheet morphology with elemental compositions of carbon 73.08%, oxygen 11.19%, and copper 15.73%. Cu-BDC nanosheets exhibit optimal degradation activity at pH 13, with an optimal catalyst dose of 5 mg and an initial dye concentration of 20 ppm, achieving a degradation capacity of 98.62 mg/g after 120 minutes of reaction. Copyright © 2025 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).

Air Quality Improvement Strategy in One of Jakarta’s Transit-Oriented Development Areas Ginting, Grace Gardenia; Hasibuan, Hayati Sari; Zulys, Agustino
Jurnal Kesehatan Lingkungan Indonesia Vol 24, No 3 (2025): Oktober 2025
Publisher : Master Program of Environmental Health, Faculty of Public Health, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkli.74608

Latar belakang: Polusi udara masih menjadi tantangan yang terus berlanjut di Jakarta, meskipun berbagai intervensi dan kebijakan telah dilakukan oleh pemerintah, termasuk penerapan kawasan Transit Oriented Development (TOD). Secara ideal, kawasan TOD seharusnya memberikan dampak positif terhadap lingkungan, khususnya melalui peningkatan kualitas udara dengan cara mengurangi penggunaan kendaraan pribadi, yang merupakan salah satu sumber utama polusi udara di kota ini. Penelitian ini bertujuan untuk merumuskan strategi peningkatan kualitas udara di kawasan TOD Dukuh Atas.Metode: Pengumpulan data dilakukan melalui observasi langsung serta wawancara dengan para ahli yang memiliki pemahaman mendalam mengenai kebijakan peningkatan kualitas udara. Metodologi penelitian mencakup penyebaran kuesioner kepada masyarakat, wawancara dengan informan kunci, dan analisis SWOT (Strengths, Weaknesses, Opportunities, Threats).Hasil: Hasil analisis SWOT menunjukkan bahwa strategi diversifikasi—dengan memanfaatkan kekuatan untuk mengurangi risiko yang ditimbulkan oleh ancaman—merupakan pendekatan yang paling efektif untuk peningkatan kualitas udara. Dari empat alternatif strategi yang dirumuskan, pendekatan S-T (Strength-Threat) diidentifikasi sebagai prioritas utama, diikuti oleh strategi W-O (Weakness-Opportunity), S-O (Strength-Opportunity), dan W-T (Weakness-Threat).Simpulan: Strategi yang direkomendasikan meliputi perluasan area dengan akses terbatas untuk kendaraan bermotor di zona transit serta penetapannya sebagai Kawasan Emisi Rendah (Low Emission Zone/LEZ), peningkatan kapasitas dan jumlah moda transportasi umum, pengembangan stasiun pemantauan kualitas udara di kawasan TOD, serta penerapan solusi ruang hijau vertikal.ABSTRACT Background: Air pollution remains a persistent challenge in Jakarta, despite various government interventions and policies, including the implementation of Transit Oriented Development (TOD) areas. Ideally, Transit Oriented Development areas should positively impact the environment, particularly by improving air quality through reducing private vehicle usage, which is a primary source of air pollution in the city. This study aims to formulate strategies for enhancing air quality within the Dukuh Atas Transit Oriented Development area.Method: Data were collected through direct observation, interviews with experts possessing in-depth knowledge of air quality improvement policies. The research methodology involved community questionnaires, key informant interviews, and a SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis.Result: The results of the SWOT analysis indicate that a diversification strategy-leveraging strengths to mitigate risks posed by threats-is most effective for air quality improvement. Among the four alternative strategies formulated, the S-T (Strength-Threat) approach was identified as the top priority, followed by W-O (Weakness-Opportunity), S-O (Strength-Opportunity), and W-T (Weakness-Threat) strategies.Conclusion: The recommended strategies include expanding the area of restricted access for motorized vehicles within the transit zone and designating it as a Low Emission Zone (LEZ), increasing the capacity and number of public transportation options, developing air quality monitoring stations in the Transit Oriented Development area, and implementing vertical green space solutions.

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 : 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.v10i1.37621

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.

Community Empowerment in Sajang Village Through Coffee Soap Making and Entrepreneurship Training Zulys, Agustino; Syauqi, Muhammad Iqbal; Adriana, Elva Dissa; Istiqomah, Muhsinatul; Susanto, Bambang Heru; Haidir, Banu Muhammad
ASEAN Journal of Community Engagement Vol. 7, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Rural entrepreneurship is believed to be one of the most strategic ways to advance community empowerment that can directly lead to national economic development, by optimizing local resources, technology, and digitalization. This article elaborates on the program conducted to support the community’s economy and increase business and digital marketing literacy in Sajang Village, Sembalun, East Lombok. The program consists of bar soap products making workshop that optimizes coffee and copra as the local potential, targeted for people of productive age who are interested in establishing a home-based business. The soap manufacturing process is informed by laboratory research formulas that have been tested and are safe, and the produced soap offers advantages over ordinary soap for both aromatherapy and skin care capacities to overcome acne and remove dead skin cells. The program’s objective is to stimulate the growth of local entrepreneurship and advance the development of authentic regional products as a sustainable income source that will strengthen the local economy. The analysis of the program’s pre- and post-tests and questionnaires indicates that such programs have enhanced participants’ literacy, skills, and motivation. A small business group was founded in subsequent to the program to launch the business; however, additional support from the local government and company is still required to maintain a supportive atmosphere for new entrepreneurs. Such entrepreneurship training could be an effective way to empower a community and open further opportunities for people in other rural areas.

Synthesis of Cu-PTC (Perylene 3,4,9,10-tetracarboxylate) Metal-Organic Framework (MOF) for Methylene Blue Photodegradation Mala, Farhah Syahidatul; Saridewi, Nanda; Nurbayti, Siti; Adawiah, Adawiah; Zulys, Agustino
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 2 Year 2026 (August 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20525

Disposal of synthetic dye waste, including methylene blue, has been increasing in recent years. The photocatalytic method is an effective approach for degrading dyes, using Metal–Organic Frameworks (MOFs) as catalysts and light as the energy source. This study aims to synthesize Cu-PTC MOF as a photocatalyst and evaluate its performance in degrading methylene blue dye. Cu-PTC was synthesized using Cu(NO3)2.3H2O and perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) via a solvothermal method. The resulting MOF was characterized using X-ray Diffraction (XRD), Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV-Vis DRS), Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Electron Microscopy (SEM). Cu-PTC exhibits a bandgap energy of 1.72 eV and characteristic functional groups at wavenumbers 1689 cm-1 (C=O), 1590 cm-1 and 1360 cm-1 (-COO), 3450 cm-1 (O-H), and 738 cm-1 and 654 cm-1 (Cu-O). The Cu-PTC MOF has a crystallinity degree of 85.35%, a crystal size of 35.33 nm, and a rod-like surface morphology. Under visible light irradiation, it achieves an optimum degradation efficiency of 71.45%, with an adsorption capacity of 73.28 mg/g for methylene blue dye at a concentration of 50 ppm, using 25 mg of Cu-PTC MOF at pH of 7 over a period of 60 minutes. 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).

Density and Tensile Properties Analysis of Biocomposite from Lid Film Waste and Oil Palm Empty Fruit Bunch Fiber Farishi, Salman; Mawaddah, Siti Mutia; Chalid, Mochamad; Zulys, Agustino; Ghozali, Muhammad
Jurnal Sains Materi Indonesia Vol. 27 No. 2 (2026): Jurnal Sains Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2026.14209

Multilayer plastic waste, particularly from the bottled water industry, represents a persistent challenge in current plastic waste management strategies. Simultaneously, oil palm empty fruit bunch (OPEFB) waste, though often discarded, possesses significant potential for sustainable material development. This study explores the utilization of both waste streams as raw materials for biocomposite fabrication, thereby addressing environmental concerns while reducing dependence on virgin polymer resources. The multilayer lid film waste (comprising PET, LDPE, and LLDPE) and OPEFB fibers were processed through crushing, sieving, and extrusion to form pellets with varying OPEFB fiber loadings (30%, 50%, and 70% by weight). The resulting biocomposite was characterized using FTIR, XRD, SEM, density measurements, and tensile testing. The biocomposite containing 70% OPEFB exhibited the slowest degradation but also the lowest crystallinity (10.84%). In contrast, the 30% OPEFB composite showed the highest tensile strength (16.86 MPa) and elongation at break (3.23 MPa). SEM analysis revealed that a higher fiber content increased the porosity within the composite matrix. These findings demonstrate the potential of combining multilayer plastic and OPEFB waste for biocomposite applications, contributing to both material innovation and environmental sustainability.

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