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Sosialisasi Aplikasi Pupuk Nanomagnetik Pasir Besi Pada Tanaman Jagung di Desa Pulau Semambu Ogan Ilir Sumatera Selatan Sebagai Integrasi Penelitian dan Perkuliahan Arsyad, Fitri Suryani; Setiabudidaya, Dedi; Ariani, Menik; Royani, Idha; Supu, Amiruddin; Mohadi, Risfidian; Lesbani, Aldes; Farma, Rakhmawati; Soerya, Balada; Nur’aini, Siti; Liasari, Beta Riana
Riau Journal of Empowerment Vol 7 No 2 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/raje.7.2.156-167

Abstract

Socialization activities have been carried out regarding the application of iron sand nanomagnetic fertilizer (Fe3O4) on corn plants to the villagers of Pulau Semambu Ogan Ilir, South Sumatra. This community service activity is part of the integration of the research results that have been carried out. From the results of the study, it was found that at the same growing age, corn added with nano-magnetic iron sand, both simaxx + nanomagnetic iron sand and silica + nanomagnetic iron sand, had a faster growth of about 100 cm compared to corn that was only given simaxx fertilizer. which is about 45-50 cm. Research results and observational data were then collected and analyzed to evaluate the effectiveness of using Fe3O4 nanomagnetic fertilizer on corn plants. Apart from being disseminated to corn farmers, research results are also used as teaching material to be conveyed to students in material physics courses. Integrating research results with community service activities and material physics lectures has increased the practical use of research results and provided wider benefits for society and students.
Removal of Methyl Orange in Aqueous Medium using ZnO/Bentonite as Semiconductor by Photocatalytic Process Priatna, Satria Jaya; Yuliana, Ayu; Zulkarnain; Melwita, Elda; Arsyad, Fitri Suryani; Mohadi, Risfidian
Science and Technology Indonesia Vol. 9 No. 3 (2024): 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.2024.9.3.539-545

Abstract

Pillarization of bentonites (from East Java) with ZnO semiconductors has been synthesized using co-precipitation methods into a ZnO/Bentonite composite and applied as a catalyst in a photocatalytic process to remove Methyl Orange (MO) dyes. The optimum pH condition of MO dyes is at pH 2 with a degradation rate of 22.91% (from 15 mg/L to 11.523 mg/L). The optimum ZnO/Bentonite catalyst weight condition is 200 mg, with a degradation rate of 29.11% (from 15 mg/L to 10.596 mg/L). The optimum time condition for UV lamp irradiation is 60 minutes, with a degradation rate of 64.92% (from 15 mg/L to 5.244 mg/L). The kinetics of MO photocatalytic reaction using ZnO/Bentonite catalyst follows the pseudo-first-order Langmuir Hinshelwood-Santosa kinetic model with photocatalytic reaction rate constant (k1) of 0.014 and photocatalytic equilibrium constant (K) of 0.012.
Hydrothermal Carbonization of Eucheuma cottonii for Selective Adsorption of Anionic Dyes Putri, Bunga Indah; Arsyad, Fitri Suryani; Lesbani, Aldes
Indonesian Journal of Environmental Management and Sustainability Vol. 8 No. 4 (2024): December
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2024.8.4.154-165

Abstract

The contamination of wastewater with synthetic dyes, particularly anionic dyes, poses a significant environmental challenge due to their persistence and difficulty in removal. Traditional adsorbents are often expensive or inefficient, driving the need for sustainable, eco-friendly alternatives. In response to this problem, this study explores the use of Eucheuma cottonii, a fast-growing and widely available macroalgae, as a raw material for producing hydrochar through hydrothermal carbonization (HTC). The goal is to develop a renewable and effective adsorbent capable of selectively removing anionic dyes from contaminated water. Hydrochar was synthesized at two different HTC temperatures, 150°C and 250°C, and its surface properties were characterized using FT-IR and BET analyses. Adsorption experiments were conducted on four anionic dyes-Congo Red (CR), Direct Yellow (DY), Methyl Orange (MO), and Direct Green (DG)-under varying pH, contact time, dye concentration, and temperature conditions. The hydrochar produced at 250°C (HC-250) demonstrated the highest surface area and pore volume, leading to superior adsorption performance, particularly for DY. Kinetic studies revealed a chemisorption-driven mechanism, while thermodynamic analysis confirmed the adsorption process to be spontaneous and endothermic, with both chemisorption and physisorption contributing to dye removal. The adsorption behavior followed the Langmuir isotherm model, indicating monolayer adsorption, with minimal interaction between adsorbed molecules. Regeneration tests confirmed that Eucheuma cottonii hydrochar could be reused over multiple cycles with minimal efficiency loss. Future work could optimize the HTC process by adjusting pressure, heating rates, and pre-treatment methods to improve adsorption properties. Incorporating nanomaterials or metal oxides could enhance adsorption for a wider range of pollutants, while machine learning could predict adsorption behavior under different conditions. Additionally, exploring the hydrochar’s use in energy storage or as a catalyst offers promising applications. Life-cycle assessments (LCAs) and techno-economic analyses (TEAs) will be vital for assessing scalability and environmental impact, positioning Eucheuma cottonii hydrochar as a sustainable, multifunctional material for industrial applications.
Integrasi Hasil Riset Smart Garden dengan Perkuliahan dan Pembelajaran Fisika di MAN IC Kayu Agung Arsyad, Fitri Suryani; Ariani, Menik; Setiabudidaya, Dedi; Royani, Idha; Saleh, Khairul; Satya, Octavianus Cakra; Lebani, Aldes; Supu, Amiruddin; Weanda, W; Suryani, Irma; Alfahidayah, Arini; Ismail, Dede Ridwan; Husin, Sadam
Jurnal Pengabdian Masyarakat Teknik Vol 7, No 1 (2024): Jurnal Pengabdian Masyarakat Teknik (JPMT)
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jpmt.7.1.67-78

Abstract

Telah dilaksanakan kegiatan PPM yang merupakan integrasi  hasil penelitian smart garden berbasis IoT dengan perkuliahan mahasiswa Fisika dan pembelajaran Fisika pada siswa  MAN Insan Cendikia Ogan Komering Ilir Sumatera Selatan menggunakan metode pembelajaran case method. Dalam model pembelajaran ini mahasiswa diminta untuk menganalisis problem pertanian konvensional yaitu permasalahan kelembaban tanah, kelembaban udara, temperatur, pH tanah, dan cahaya, yang tidak dapat dikontrol kebutuhannya sehingga menghambat pertumbuhan dan perkembangan tanaman. Untuk mengatasi problem tersebut, siswa kemudian diberi pembelajaran cara merancang smart garden menggunakan sensor berbasis IoT yang dapat bekerja secara otomatis dalam mendeteksi dan mengontrol secara realtime kelembaban tanah, kelmbaban udara, temperatur, pH tanah, dan cahaya yang dibutuhkan tanaman hanya menggunakan smartphone.  Hasil penelitian menunjukkan bahwa aplikasi sensor dan penggunaan teknologi internet of thing (IoT) pada smart garden memberikan kemudahan dalam mengontrol semua kebutuhan tanaman. Dari hasil pembelajaran diperoleh 88% siswa memperoleh nilai rata-rata yang meningkat cukup siknifikan dari 81,1 pada saat pretest menjadi 86,7 pada saat posttest. Sementara itu 12% sisanya, nilai rata-rata siswa menunjukan hasil yang  cenderung konstan yaitu  sekitar 79. Dari kegiatan case method ini terlihat bahwa 80 – 90 % mahasiswa dan siswa memiliki pemahaman konsep yang baik tentang teknologi IoT pada pertanian modern. Oleh karena kontibusi penelitian ini mampu meningkatkan pemahaman siswa tentang konsep fisika elektronika dan instrumentasi,  pengukuran dan kalibrasi, serta keterampilan berbasis Teknologi. Selain itu penelitian ini juga dapat meningkatkan kemampua siswa dalam berpikir kritis, berkolaborasi, dan berkreasi
Antibacterial Properties of Taro: Extraction, Antibacterial Testing Method, Modification and Application Atina; Royani, Idha; Assa'idah; Arsyad, Fitri Suryani
Science and Technology Indonesia Vol. 10 No. 2 (2025): April
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.2025.10.2.374-401

Abstract

Taro plants (Colocasia esculenta) contain secondary metabolites identified as antibacterial, antioxidant, anti-inflammatory and anticancer such as alkaloids, glucosides, terpenoids, resins, flavonoids, saponins, phenols, tannins, amino acids. This article discusses various sources related to the potential of taro as an antibacterial, the discussion includes the content of secondary metabolites along with their properties and characteristics, medicinal plant extraction methods, antibacterial testing, applications and future challenges. This review research used data in the form of articles from Scopus, PubMed and Web of Science indexed sources, published between 2015-2024. Data were analyzed descriptively to summarize trends in antibacterial activity and variability across studies. Ethanol extract of taro was screened for secondary metabolite content, antibacterial activity was tested by Kirby Bauer method. Synthesis of antibacterial medicinal plant-based nanoparticles were successfully synthesized with size range between 10-120 nm, with inhibition zones between 11.9-37 mm against pathogens such as S. aureus, E. coli, and L. monocytogenes. Antibacterial nanofibers were synthesized by electrospinning, self-assembly, phase separation, template synthesis, coaxial electrospinning,electrospraying. Characterization used UV-Vis Spectroscopy, FTIR, TEM, XRD, SEM-EDX, HPLC to separate, identify, and quantify bioactive compounds. Common antibacterial mechanisms include inhibition of protein and nucleic acid synthesis, cell membrane damage, and cell structure modification. The application of taro as antibacterial is investigated in pharmaceutical field, industrial field, food field, waste treatment, dentistry field, biomedical field. The development of taro as an antibacterial has great prospects in the pharmaceutical industry, especially as a safe and effective alternative to conventional antibiotics.
Optimasi Esktraksi Polimer IIPs Bercetakan Ion Fe3+ terhadap Kapasitas Adsorpsi Menggunakan Metode Desain Faktorial Hijrah, Muhammad; Arsyad, Fitri Suryani; Satya, Octavianus Cakra; Jorena, Jorena; Virgo, Frinsyah; Royani, Idha
Jurnal Penelitian Sains Vol 26, No 1 (2024)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56064/jps.v26i1.912

Abstract

Adsorpsi merupakan salah satu metode yang banyak digunakan untuk mendegradasi logam berat dari lingkungan. Berbagai adsorben telah banyak digunakan dan sampai saat ini penelitian telah berhasil mengembangkan polimer bercetakan sebagai adsorben logam berat. Optimasi ekstraksi polimer  dalam menghasilkan IIPs bercetakan Ion Fe3+ dengan menggunakan desain faktorial diharapkan mampu menghasilkan polimer IIPs dengan waktu sintesis yang relatif singkat. Polimer Fe (III) yang telah disintesis dengan metode cooling-heating diekstraksi dengan larutan HCL. Proses ekstraksi dilakukan berdasarkan rancang eksperimen yang telah dilakukan dengan mengkombinasikan faktor dan level faktor ekstraksi. Selanjutnya hasil eskperimen dilakukan karakterisasi XRD, FTIR dan AAS untuk mengevaluasi hasil ekstraksi polimer Fe (III) dan sebagai data respon yang akan dianalisis pada software DX. Hasil optimum terjadi pada eksperimen dengan larutan ekstraksi 6 M dan waktu ekstraksi selama 8 Jam. Model matematika yang dihasilkan pada kapasitas adsorpsi yaitu, Y= 1,65112 + 0,165875A dan pada ukuran kristal yaitu, Y= 1,62998-0,392975A. Penelitian ini mendapatkan korelasi bahwasannya semakin besar nilai konsentrasi pelarut pada proses ekstrasi mempengaruhi peningkatan kapasitas adsorpsi dan penurunan  ukuran kristal material IIPs-Fe3+.
Rancang Bangun Otomasi Kelembaban Tanah pada Tanaman Anggrek menggunakan ESP32 Berbasis IoT Yoanda, Alya Putri; Komaria, Putri Nur Hidayah; Margareta, Regi Tia; Ayu, Jutira; Rahma, Diana Mauli; Saleh, Khairul; Assa'idah, Assa'idah; Arsyad, Fitri Suryani
Jurnal Penelitian Sains Vol 26, No 2 (2024)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56064/jps.v26i2.969

Abstract

Pada proses pertumbuhan dan perkembangan tanaman dibutuhkan kelembaban tanah yang optimal. Jika tanah kelebihan kadar air akan menyebabkan pembusukan akar, sedangkan jika kekurangan kadar air tanaman tidak dapat berbunga mengalami dehidrasi. Salah satu tanaman yang memerlukan kelembaban tanah yang optimal yaitu tanaman anggrek Cymbidium. Menurut balai penelitian tanaman hias, anggrek dapat tumbuh dengan baik, jika kelembaban tanah berkisar antara 60%-80%. Oleh karena itu, penelitian ini dilakukan untuk merancang bangun otomasi kelembaban tanah untuk tanaman anggrek Cymbidium menggunakan sensor capacitive soil moisture SKU:SEN0193 untuk mendeteksi kelembaban tanah, nodeMCU ESP32 sebagai mikrokontroler berbasis IoT, pompa air mini dc 12 volt sebagai aktuator penyiraman tanaman dan aplikasi blynk untuk memonitoring kelembaban tanah dari jarak jauh. Metode perancangan perangkat keras dan perangkat lunak berhasil dilakukan berjalan sesuai dengan program yang telah dibuat, dibuktikan pada pengujian kinerja alat pompa hidup jika kelembaban tanah <60% dan mati jika kelembaban tanah >80%. Penelitian ini berhasil mengembangkan rancang bangun otomasi kelembaban tanah dengan memperoleh hasil pengujian alat menggunakan sensor capacitive soil moisture SKU:SEN0193 yang memenuhi standar validitas instrument dengan nilai rata-rata akurasi 98,76%, presisi 99,22%, dan error sebesar 0,45 % serta aplikasi blynk dapat menampilkan nlai output secara realtime.
Eucheuma Cottonii Hydrochar: A Promising Adsorbent for Congo Red Dye Putri, Bunga Indah; Arsyad, Fitri Suryani; Hanifah, Yulizah; Ahmad, Nur
Indonesian Journal of Material Research Vol. 3 No. 2 (2025): July
Publisher : Magister Program of Material Science Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijmr.20253264

Abstract

This study investigates the transformation of Eucheuma cottonii (EC) into a highly efficient adsorbent through hydrothermal carbonization at 200°C, resulting in hydrochar (HC-200). The FT-IR analysis reveals significant structural changes, including reduced intensity of oxygenated functional groups such as carbonyl and hydroxyl, alongside increased aromaticity, contributing to enhanced hydrophobicity and structural stability. These alterations render HC-200 well-suited for adsorption applications. BET analysis highlights a marked increase in the specific surface area and mesoporosity of HC-200 compared to EC, with hysteresis loops confirming enhanced adsorption capacity. SEM imaging shows substantial morphological changes, including rougher surfaces, increased porosity, and the presence of spheroidal structures, indicative of successful carbonization and improved diffusivity. Adsorption studies underline HC-200's superior performance in anionic dye removal, with a maximum adsorption capacity 37.894 mg/g. pHpzc analysis demonstrates more acidic surface characteristics, which favor adsorption in acidic conditions. Adsorption kinetics align predominantly with the pseudo-second-order model, indicating chemisorption as the dominant mechanism. The regeneration study shows HC-200's excellent reusability, maintaining significant adsorption efficiency over seven cycles, whereas EC experiences a steep decline in performance.
REVIEW OF CHARACTERISTICS AND PROPERTIES OF FE2O3/SIO2 AS WATER POLLUTION PREVENTION Soerya, Balada; Edianta, Jaya; Lailaturofi'ah, Siti; Ningtyas, Aniendita; Arsyad, Fitri Suryani; Setiabudidaya, Dedi; Sailah, Siti
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.131

Abstract

The existence of water on earth is very abundant and has a vital role in the source of life for every living creature. In managing water resources, pollution is one of the issues world researchers face. This article reviews the characteristics and methods of synthesizing Fe2O3 and SiO2 materials to prevent water pollution. The strategies administrated antecedently square measure vapor deposition, microemulsion, solvothermal, coprecipitation, sol-gel, and hydrothermal. The formation of fine quality nanoparticles with controlled size associate degreed size distribution square measure typically achieved by selecting an applicable solvent mixture and varied parameters like temperature, pressure, and time interval.
EFFECT OF FE3O4/SIO2/TIO2 PHOTOCATALYST ON POLLUTANT MANAGEMENT IN SWAMP WATER Liasari, Beta Riana; Arsyad, Fitri Suryani; Assaidah, Assaidah; Ramlan, Ramlan; Nur’aini, Siti; Soerya, Balada
Indonesian Physical Review Vol. 7 No. 1 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i1.271

Abstract

Water is an essential source of life, thus regulating its purity is critical in daily living. Water has a high acid content (pH) and contains a variety of harmful chemical elements such as iron (Fe), copper (Cu), sulphate (SO4), nitrate (NO3), chloride (Cl), and other dangerous bacteria. The goal of this research is to create wastewater management such that it can be used by the community. The process involves creating Fe3O4 catalysts that have been modified using SiO2 and TiO2. The application of dirty water employs Fe3O4/SiO2/TiO2 to bind contaminants in polluted water. The results of the photocatalyst process carried out by Fe3O4/SiO2/TiO2 reach 90% in 180 minutes of UV light irritation so that it can degrade water pollutants such as methylene orange.