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All Journal POSITRON PRISMA FISIKA SEMIRATA 2015 Jurnal Fisika FLUX Jurnal Sinergitas PkM & CSR Community Empowerment

Irfana Diah Faryuni

Jurusan Fisika Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Tanjungpura

Author-ID : 264159

Arts Humanities Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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EFEK SUMBER KARBON PADA PROPERTI LUMINESENSI BCNO YANG DISINTESIS DENGAN METODE PEMANASAN GELOMBANG MIKRO Feri Ramdani; Irfana Diah Faryuni; Abdul Muid; Joko Sampurno; Bebeh Wahid Nuryadin; Fatimah Arofiati Noor
Jurnal Fisika FLUX Vol 13, No 2 (2016): Jurnal Fisika FLUX Edisi Agustus 2016
Publisher : Lambung Mangkurat University Press

ABSTRACT- A BCNO phosphor was successfully synthesized using a microwave method and atmospheric pressure. The phosphors were prepared from precursors containing boric acid as a boron source, urea as a nitrogen source and poly ethylene glycol (PEG) as a carbon source. The carbon sources were varied by PEG MW 1000, MW 6000 and MW 20000. The objective of this research is to study the effect of variations in the carbon source to the luminescence properties of BCNO that synthesized using microwave. The emission wavelength of the samples are in violet area (380-450 nm) and the highest emission intensity was 47 a.u. produced by BCNO which using PEG MW 20000 as the carbon source.

Analisis Pengaruh Ukuran Pori Terhadap Sifat Listrik Karbon Aktif Dari Limbah Tandan Sawit Pada Prototipe Baterai Handoyo Margi Waluyo; Irfana Diah Faryuni; Abdul Muid
Jurnal Fisika FLUX Vol 14, No 1 (2017): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

The prototype batteries was succesfully made by using activated carbon. This research aimed to examine the effect of pore size on the electrical properties of activated carbon which is used as a battery-making material. Activated carbon is synthesized using H3PO4 activator with concentration variations (mass/volume) of 5%, 10%, 15%, 20%, and 25%. The carbonization was carried out at 400 °C for 1 hour, while activation at 700 °C for 1 hour. The result showed, the pore size effect on the electrical properties of the activated carbon in the battery prototype, especially for the capacitance and internal resistance of the material which has a correlation of 90% and 90.2%, respectively. The sample with 25% H3PO4 has the best pore size of 5.43μm. As the pore size of the activated carbon increases, it has caused increased capacitance and decreased internal resistance of the material. With the pore size of 5.43μm, the capacitance is 5.88mF/g and the internal resistance of the material is 662.02Ω.

APLIKASI METODE PERTANIAN HIDROPONIK SEBAGAI TEKNOLOGI TEPAT GUNA DI KELURAHAN TAMBELAN SAMPIT [THE APPLICATION OF THE HYDROPONIC FARMING METHOD AS AN APPROPRIATE TECHNOLOGY IN KELURAHAN TAMBELAN SAMPIT] Irfana Diah Faryuni; Joko Sampurno
Jurnal Sinergitas PKM & CSR Vol 2, No 2 (2018): April
Publisher : Universitas Pelita Harapan

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

The resident of Kelurahan Tambelan Sampit consists of various segments of society. Most of the male work as laborers, only some people that work as government employees. Most of the female in Kelurahan Tambelan Sampit help her husband by being a laundry worker, selling cookies and domestic helpers. Many of them do not work. In terms of economic level, most of the population is in middle until lower economic levels. The Conditions was motivate the team of community service to add skills in entrepreneurship at Kelurahan Tambelan Sampit, one of them by developing entrepreneurial spirit in the plantation sector to some communities in Kelurahan Tambelan Sampit. The product of this plantation can be used for self-consumption, even for sale, considering the high price of hydroponic vegetables. Therefore, the team of community service is motivated to provide information on appropriate technology in the form of information delivery, training and skill enhancement in hydroponic gardening that is to grow plants with water as the media, to obtain new superior product from Kelurahan Tambelan Sampit, i.e. the hydroponic fresh vegetable product . In addition, the community will provide knowledge on the marketing strategies so that the vegetables can be marketed to consumers. Thus, community service activities can form a productive society, self-reliant, high performing, have strong economic strength and improving the welfare of people living standards.

Uji Kinerja Polipropilena Berfotokatalis Semikonduktor TiO2 pada Fotodegradasi Methylene Blue Asifa Asri; Ilham Lazuardy Arief; Hasanuddin Hasanuddin; Irfana Diah Faryuni; Mega Nurhanisa; Wahyu Hidayat
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 19, No 2 (2022): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Penelitian ini menyelidiki degradasi fotokalitik dari larutan Metilen Biru (MB) yang diberikan pra-perlakuan Polypropylene (PP)/TiO2. PP/TiO2 dibuat dengan proses thermal milling pada suhu 175°C selama 40 menit untuk melapisi permukaan PP dengan TiO2. Hal ini bertujuan untuk melapisi permukaan polipropilena (PP) dengan TiO2 sebagai upaya modifikasi material karena sukarnya pemisahan TiO2 dari limbah. UV-vis digunakan untuk mengkarakterisasi sifat fotokatalitik dari sampel. Sebanyak 84,70 g sampel digunakan untuk mendegradasi 3,12.10-6 M MB (250 ml limbah artifisial). Dengan tata eksperimen yang sama, sampel yang sama digunakan berulang sebanyak delapan kali untuk mempelajari efek penggunaan berulang pada aktvitas fotokatalitik material. Dari penelitian yang telah dilakukan, ditemukan bahwa hampir 90% (rata-rata) MB tereduksi oleh PP/TiO2 selama tiga hari percobaan dan 8 kali pengulangan. Yang lebih penting, komposit PP/TiO2 berpotensi untuk dapat digunakan berulang (lebih dari 8 kali) dengan sedikit penurunan kemampuan fotodegradasi.

Geophysical data acquisition education for high school students through field observation Muhardi, Muhardi; Putra, Yoga Satria; Perdhana, Radhitya; Jumarang, Muh Ishak; Sampurno, Joko; Muliadi, Muliadi; Ihwan, Andi; Adriat, Riza; Zulfian, Zulfian; Sutanto, Yuris; Faryuni, Irfana Diah
Community Empowerment Vol 10 No 3 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12423

Most high school students in Singkawang City and Bengkayang Regency still require a more comprehensive understanding regarding the application of geophysics, which can impact their skills in conducting field observations. This Community Service (PkM) aims to enhance students' skills in geophysical data acquisition through field observations at Karta Beach, Bengkayang Regency. The activity was carried out in three stages: preparation, implementation, and evaluation. During the implementation stage, participants were educated about geophysical data acquisition through field observations, including geoelectric, self-potential, meteorology, and geology practicums. Based on the evaluation results, a score of 87.31 (very good) was obtained, indicating an increase in students' skills in geophysical data acquisition through field observations.

Enhancing high school students’ understanding and skills in geophysical surveying and data processing: A service learning Jumarang, Muhammad Ishak; Putra, Yoga Satria; Muliadi, Muliadi; Ihwan, Andi; Sampurno, Joko; Faryuni, Irfana Diah; Zulfian, Zulfian; Adriat, Riza; Perdana, Radhitya; Muhardi, Muhardi
Community Empowerment Vol 10 No 6 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12716

Knowledge and skills in geophysical surveying and data processing are unique areas for high school students interested in environmental conditions. This community engagement activity aimed to enhance the understanding and skills of high school students in Pontianak City regarding geophysical surveying and data processing through direct field observations. The activity spanned five months, from June to October 2024, and included several stages: preparation, implementation, and evaluation. Evaluation was conducted with 41 participants, achieving a success index of 90.54%. These evaluation results indicate that the activity met the expectations of most participants. Key aspects such as participant satisfaction, program utility, material comprehension, presenter/facilitator delivery, and time allocation received very high appreciation from the participants.

Analisis Karakteristik dan Potensi Energi Angin Menggunakan Distribusi Weibull dan Windrose di Wilayah PLTB Sidrap Sinta, Sinta; PUTRA, Yoga Satria; Sampurno, Joko; Faryuni, Irfana Diah; Muliadi, Muliadi
POSITRON Vol. 16 No. 2 (2026): Vol. 16 No. 2 Edition (This issue was scheduled for publication on July 31, 20
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v16i2.106341

Indonesia memiliki potensi energi angin yang besar mencapai 155 GW, namun pemanfaatannya baru sekitar 0,10% dari total potensi tersebut. Salah satu tantangan utama dalam pengembangan energi angin di lokasi dengan topografi perbukitan kompleks, seperti PLTB Sidrap, adalah keterbatasan data pengukuran lapangan yang mencakup area luas secara kontinu pada skala lokal. Penelitian ini bertujuan mengevaluasi efektivitas Mean Bias Correction dalam meningkatkan kesesuaian data reanalisis ECMWF ERA5 terhadap observasi lokal serta mengevaluasi representativitas karakteristik angin regional hasil koreksi untuk analisis potensi energi angin. Data ERA5 periode 2005–2024 dikoreksi menggunakan data observasi BMKG periode 2022–2024, kemudian dianalisis menggunakan windrose dan distribusi Weibull. Hasil kalibrasi melalui metode mean bias correction terbukti efektif meningkatkan akurasi data dengan menurunkan nilai (RMSE) dari 1,09 m/s menjadi 0,47 m/s. Analisis windrose mengonfirmasi dominasi pola angin musiman, di mana musim timur (JJA) menunjukkan stabilitas aliran tertinggi dari arah tenggara dengan kecepatan dominan mencapai 3,53 m/s. Temuan utama penelitian ini mengungkapkan adanya kesenjangan signifikan antara estimasi daya teoritis skala regional (maksimum 4,92 MW pada musim JJA) dibandingkan dengan kapasitas terpasang aktual PLTB Sidrap sebesar 75 MW. Pendekatan ini memanfaatkan data observasi sebagai dasar koreksi data ECMWF ERA5 sebelum digunakan untuk menganalisis karakteristik dan potensi angin segional pada wilayah dengan topografi kompleks. Temuan menunjukkan bahwa meskipun koreksi bias meningkatkan kesesuaian ERA5 terhadap observasi, karakteristik angin regional belum sepenuhnya merepresentasikan kondisi aliran lokal. Hal ini mengimplikasikan perlunya pemodelan skala lokal, seperti Computational Fluid Dynamics (CFD), untuk merepresentasikan pengaruh topografi secara lebih presisi.

Co-Authors . Apriansyah Aang Kurniady Abdul Muid Abdul Muid Abdurrahman Bahtiar Andi Ihwan Antini, Oktari Apriani, Ririn Asifa Asri Bebeh Wahid Nuryadin Bintoro Siswo Nugroho Boni Pahlanop Lapanporo Dwiria Wahyuni Erwan Erwan, Erwan Evelin, Luluk Surya Fatimah Arofiati Noor Feri Ramdani Handoyo Margi Waluyo Haryanti, Nida Hasanuddin Hasanuddin Hendri Hendri Ilham Lazuardy Arief Joko Sampurno Joko Sampurno Jumarang, Muh Ishak Khaidar, Hafidh Rayana Kushadiwijayanto, Arie Antasari Lestari, Diyah Dwi Maysharoh, Siti Mega Nurhanisa Muh. Ishak Jumarang Muhardi Muliadi Nurhadiansyah, Alif Nurhasanah Nurhasanah Perdana, Radhitya Perdhana, Radhitya Pramushinta Arum Pynanjung Putri, Mentarie Resthu Ramadhani, Athaya Rana Ramdani, Feri Riza Adriat Sinta, Sinta Wafha Fardiah Wahyu Hidayat Wahyu Hidayat Waluyo, Handoyo Margi Wulandari, Tiwuk Yoga Satria Putra Yuris Sutanto Zulfian Zulfian

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