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All Journal STUDIA ISLAMIKA Jurnal Inovasi Pendidikan Kimia Kreano, Jurnal Matematika Kreatif-Inovatif Bulletin of Chemical Reaction Engineering & Catalysis The Journal of Pure and Applied Chemistry Research Science and Technology Indonesia Indonesian Journal of Chemistry Communications in Science and Technology Molekul: Jurnal Ilmiah Kimia Jurnal Scientia Indonesia SRIWIJAYA JOURNAL OF ENVIRONMENT Jurnal Sylva Lestari Indonesian Journal of Environmental Law and Sustainable Development Bulletin of Chemical Reaction Engineering & Catalysis Greensusmater Studia Islamika
Tarmizi Taher
Department Of Environmental Engineering, Institut Teknologi Sumatera, Jl. Terusan Ryacudu, Way Hui, Kecamatan Jati Agung, Lampung Selatan 35365, Indonesia
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health

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Electrospun Rare-Earth Metal Oxide (CeO2 ) Nanofiber for the Degradation of Congo Red Aqueous Dyes Rianjanu, Aditya; Haloho, Trivendi; Pasaribu, Joshua Leonardo; Fahmi, Achmad Gus; Nurfani , Eka; Sipahutar, Wahyu Solafide; Yudistira, Hadi Teguh; Taher, Tarmizi
Science and Technology Indonesia Vol. 10 No. 1 (2025): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.1.123-130

Abstract

The persistent presence of organic dyes like Congo Red (CR) in wastewater poses a significant environmental challenge. In this study, CeO2 nanofibers (CeO2-NF) were successfully synthesized via electrospinning followed by calcination as potential photocatalysts for the degradation of CR pollutants in aqueous solutions. The synthesized nanofibers were characterized using field emission scanning electron microscopy coupled with energy dispersive X-Ray Spectroscopy (FESEM-EDS) for morphological and elemental analyses, X-Ray Diffraction (XRD) for crystalline structure, and Fourier transform infrared (FTIR) spectroscopy for molecular properties. Photocatalytic degradation experiments were conducted under UVC light irradiation, with the CeO2-NF1, CeO2-NF2, and CeO2-NF3 samples achieving CR degradation percentages of 95.6%, 96.9%, and 95.2%, respectively, after 130 minutes of reaction time. Kinetic analysis revealed that the photocatalytic degradation followed pseudo-first-order kinetics, with rate constants of 0.020 min-1, 0.024 min-1, and 0.025 min-1 for CeO2-NF1, CeO2-NF2, and CeO2-NF3, respectively, highlighting the superior performance of CeO2-NF3. These results indicate that CeO2NF could serve as an effective material for the photocatalytic degradation of organic dyes, offering a promising approach for wastewater treatment applications.
Hydrothermal synthesis of Nb2O5-natural zeolite composite for enhanced adsorptive removal of anionic and cationic dye Anastasya, Yohana; Muhtar, Sephia Amanda; Munandar, Andika; Rahayu Saraswati, Ayu; Taher, Tarmizi
Greensusmater Vol. 1 No. 2 (2024)
Publisher : Green and Sustainable Materials Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62755/greensusmater.2024.1.2.63-67

Abstract

The imperative to mitigate dye pollution from wastewater has propelled the exploration of efficient adsorbents. This study deals with the preparation and evaluation of Nb2O5-supported natural zeolite (NbX_NZ) for enhanced dye adsorption performance. A facile hydrothermal method was employed to prepare NbX_NZ with varying niobium precursor loadings. Comprehensive material characterization employing FESEM, EDX, TGA, XRD, and FTIR analyses elucidate the successful incorporation of Nb2O5, revealing altered morphological and thermal properties. The adsorption test exhibited a notable augmentation in adsorption capacity for Congo red dye, particularly with the Nb15_NZ sample, showcasing a nearly two-fold increase compared to the parent natural zeolite. The findings underscore the potential of NbX_NZ as promising materials for anionic dye adsorption, paving the way for advancing wastewater treatment solutions and further investigations into metal oxide-modified zeolites.
High Surface Area Ortho-Nb2O5 as Bifunctional Adsorbent and Photocatalyst for Efficient Removal of Tetracycline Antibiotics from Wastewater Taher, Tarmizi; Maharani, Putri; Muhtar, Sephia Amanda; Munandar, Andika; Sidiq, Ahmad Nur; Rianjanu, Aditya
Science and Technology Indonesia Vol. 10 No. 3 (2025): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.3.916-923

Abstract

The presence of antibiotics in aquatic environments poses significant environmental and health risks, requiring advanced treatment strategies for their removal. In this study, we report the straightforward hydrothermal synthesis of high surface area ortho-Nb2O5  and its dual role as both an adsorbent and photocatalyst for the removal of tetracycline (TC) from wastewater. The structural and  morphological properties of ortho-Nb2O5 were systematically investigated using XRD, FTIR, FESEM-EDS, and BET surface area analysis. The ortho-Nb2O5 synthesized at 72 hours (Nb2O5_72) exhibited a high BET surface area of 242.42 m2/g, mesoporosity, and a bandgap of 3.28 eV, enabling efficient UV-driven photocatalysis. Adsorption studies revealed a high TC removal capacity of 32 mg/g at equilibrium. Under UV irradiation, ortho-Nb2O5 achieved significant photocatalytic degradation of TC.
Changing the Image of Islam and Muslim World: Indonesian Exercise Taher, Tarmizi
Studia Islamika Vol. 3 No. 2 (1996): Studia Islamika
Publisher : Center for Study of Islam and Society (PPIM) Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/sdi.v3i2.805

Abstract

This paper was originally a public lecture text of former Minister of Religious Affairs. H. Tarmizi Taher, MD, at the Center for the Study of World Religions, Harvard University, USA., On 8 November 1995, discussed the Indonesian Muslim religious discourse in relation to inter-religious relations.DOI: 10.15408/sdi.v3i2.805
Durability to Natural Weathering of Methylene Diphenyl Diisocyanate-Bonded Bamboo Oriented Strand Board Lestari, Dini; Suwanda, Astri Aulia; Murda, Rio Ardiansyah; Maulana, Muhammad Iqbal; Augustina, Sarah; Rianjanu, Aditya; Taher, Tarmizi; Hidayat, Wahyu; Maulana, Sena; Lubis, Muhammad Adly Rahandi
Jurnal Sylva Lestari Vol. 12 No. 1 (2024): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i1.839

Abstract

This study aimed to examine the qualities of bamboo-oriented strand board (BOSB) made from Dendrocalamus asper bamboo strands, both with and without steam treatment. Furthermore, the effect of exposure length to natural weathering on the physical and mechanical characteristics of BOSB was examined. The steam treatment lasted one hour at 126°C and a pressure of 0.14 MPa. Methylene diphenyl diisocyanate (MDI) and paraffin were utilized as adhesives and additives, with concentrations of 5% and 1%, respectively, based on oven-dried weight. The BOSB was exposed to natural weathering in different exposure durations (0, 1, and 3 months) in Bukit Bogor Raya Pajajaran, West Java, Indonesia. Subsequently, the BOSB was tested for its physical and mechanical properties and retention value. The result showed that steam treatment improved the dimensional stability and mechanical properties of BOSB bonded with MDI adhesive more than untreated BOSB. However, steam treatment has a better protection level against natural degradation than untreated samples. These confirm that BOSB with steam treatment is a durable and sustainable construction material. Keywords: bamboo, methylene diphenyl diisocyanate, natural weathering, oriented strand board, steam treatment
Co-Authors Abelta, Gita Aldira Addy Rachmat Al Qadri, Latif Aldes Lesbani Aldes Lesbani Alfan Wijaya Alfan Wijaya Anastasya, Yohana Andika Arisetyawan, Andika Andreas, Roy Asagabaldan, Meezan Ardhanu Augustina, Sarah Badri, Arini Fousty Bakri Rio Rahayu Bakri Rio Rahayu Banna, Sabri Dedi Rohendi Dini Lestari, Dini Eka Nurfani Fahmi, Achmad Gus Febrina, Melany Ferlinahayati Ferlinahayati Hadi Teguh Yudistira, Hadi Teguh Haloho, Trivendi Irfan Fauzi Jeri Ramadhan Juleanti, Novie Lubis, Muhammad Adly Rahandi Mardiyanto Maulana, Muhammad Iqbal Maulana, Sena Mikha Meilinda Christina Muhammad Said Muhammad Said Muhtar, Sephia Amanda Munandar, Andika Normah Normah Normah Normah, Normah Novie Juleanti Novie Juleanti Nurlisa Hidayati Nurlisa Hidayati Nyanyu Ummu Hani Pasaribu, Joshua Leonardo Patimah Mega Syah Bahar Nur Siregar Pradana, Aditya Bagus Putri Maharani Rabelia Juladika Sayeri Rahayu Saraswati, Ayu Rajak, Abdul Ramadhan, Jeri Rianjanu, Aditya Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Roy Andreas Sidiq, Ahmad Nur Sipahutar, Wahyu Solafide Siregar, Patimah Mega Syah Bahar Nur Suwanda, Astri Aulia Suyatman Suyatman Wahyu Hidayat Wijaya, Alfan Yosi Saria Yunita Irianty