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All Journal Jurnal Geliga Sains: Jurnal Pendidikan Fisika Jurnal Sains dan Teknologi Jurnal Neutrino : jurnal fisika dan aplikasinya Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI JOURNAL ONLINE OF PHYSICS Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Jurnal Fisika FLUX Edumatsains Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) Spektra: Jurnal Fisika dan Aplikasinya KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA Gorontalo Agriculture Technology Journal Kumawula: Jurnal Pengabdian Kepada Masyarakat Journal of Engineering and Scientific Research (JESR) Journal of Appropriate Technology for Community Services Indonesian Review of Physics (IRiP) Jurnal Pendidikan Fisika dan Sains (JPFS) Journal of Innovation and Technology Jurnal Riset Fisika Indonesia Indonesian Journal of Community Empowerment Newton-Maxwell Journal of Physics Dharma Pengabdian Perguruan Tinggi (DEPATI) Science Technology and Management Journal (STMJ)

Fitri Afriani

Department Of Physics, Universitas Bangka Belitung

Author-ID : 220826

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

Published : 28 Documents Claim Missing Document

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Pengaruh Pelapisan Silika Terhadap Sifat Fisikokimia Buah Pisang pada Suhu Ruang Lizia Miratsi; Nur Hamrin; Rena Aprilianti; Yunita Febriani; Fitri Afriani
Gorontalo Agriculture Technology Journal Volume 4 Nomor 2 Oktober 2021
Publisher : Universitas Gorontalo

Pisang (Musa sp.) merupakan komoditas buah yang rasanya enak, kaya akan kandungan gizi, dan harganya yang relatif terjangkau, tetapi pisang cepat mengalami pembusukan. Pada penelitian ini digunakanlah silika sebagai bahan yang dapat memperpanjang masa simpan buah pisang. Silika merupakan bahan yang memenuhi standar keamanan pangan dan juga dapat digunakan sebagai bahan tambahan pangan, dan silika tentunya tidak memiliki sifat toksik. Metode pelapisan silika pada pisang yang dikembangkan yaitu silika dicampur dengan akuades dan dilapiskan pada pisang yang telah dibersihkan. Berdasarkan parameter yaitu indeks skala warna kulit, rasio daging terhadap berat buah, kekerasan buah pisang, dan asam tertitrasi total (ATT), diketahui bahwa pisang dengan pelapisan silika menunjukkan nilai yang lebih rendah pada setiap pengujian dibandingkan kontrol. Hal ini menunjukkan bahwa pisang dengan silika memiliki tingkat kematangan yang lebih rendah daripada pisang kontrol, dan silika dapat menjadi alternatif yang menarik untuk meningkatkan kualitas pengawetan buah pisang segar untuk penyimpanan yang lebih lama.

Efforts to Prevent COVID-19 in Penyak Village: Implementation of KKN-Thematic during the COVID-19 Pandemic Fitri Afriani
Indonesian Journal of Community Empowerment (IJCE) Vol 1 No 02 (2020): Indonesian Journal of Community Empowerment (November)
Publisher : Fakultas Kewirausahaan Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35899/ijce.v1i02.167

COVID-19 pandemic is a global problem that affects various sectors of life and the Republic of Indonesia's Government has implemented a New Habit Adaptation program. Penyak Village is one of the villages in the Bangka Belitung Islands Province, where most people work as fishermen and farmers. It causes the majority of the community to work from outside the home. One of the activity programs of Universitas Bangka Belitung in response to COVID-19 is the implementation of KKN-Thematic to focus on efforts to prevent COVID-19. For Penyak Village, the KKN-Thematic program is carried out in several stages such as (i) preparation, (ii) preparing equipment to be given to the community, (iii) making video tutorials for making hand-sanitizers and masks, (iv) distributing health protocol equipment and counseling, and (v) evaluation. From the results, most community and village officials respond well to the activities that have been carried out.

Studi Kinetika Pada Proses Elektrokoagulasi Zat Warna Metilen Biru Andrian Saputra; Yuant Tiandho; Fitri Afriani
Jurnal Riset Fisika Indonesia Vol 3 No 1 (2022): Desember 2022
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v3i1.3230

Permasalahan utama yang umumnya dihadapi para pelaku industri tekstil yaitu berkaitan dengan banyaknya jumlah limbah cair yang dihasilkan. Limbah cair pewarna metilen biru tidak dapat dibuang secara langsung ke perairan karena memiliki tingkat kelarutan yang tinggi dan bersifat non-biodegradable. Oleh karena itu, dalam penelitian ini dilakukan pengolahan limbah cair pewarna metilen biru dengan menggunakan metode elektrokoagulasi yang mudah diterapkan dengan tingkat efisiensi pemisahan kadar polutan dalam air limbah yang tinggi. Tahapan selanjutnya dilakukan dekolorisasi pada limbah pewarna metilen biru dengan variasi tegangan yang diberikan sebesar 20,25, dan 30 volt serta variasi waktu yang digunakan selama 1,3,5,10,15,20,25, dan 30 menit. Berdasarkan hasil penelitian menunjukkan bahwa semakin besar tegangan listrik dan semakin lama proses elektrokoagulasi dilakukan maka semakin tinggi pula nilai dekolorisasi yang dihasilkan limbah pewarna metilen biru tersebut. Hasil dekoloriasasi yang diperoleh kemudian dilanjutkan dengan melakukan analisis laju reaksi yang menunjukkan perubahan konsentrasi metilen biru yang berbanding lurus dengan waktu yang diberikan. Analisis laju reaksi dilakukan dengan menggunakan model kinetika reaksi yaitu orde satu, orde dua, dan BMG. Berdasarkan nilai yang dihasilkan dari ketiga model kinetika reaksi, model kinetika BMG merupakan model kinetika reaksi yang terbaik dikarenakan memiliki nilai koefisien determinasi (R2) yang tinggi yaitu sebesar 0,999.

Sintesis dan Karakterisasi Hidrogel PVA/Alginat Mengandung Ekstrak Lada sebagai Pembalut Luka Antibakteri Fadillah Ramadhani; Lizia Miratsi; Zalva Humaeroh; Fitri Afriani
Newton-Maxwell Journal of Physics Vol. 2 No. 2: Oktober 2021
Publisher : UNIB Press

Wound dressings act as wound protectors as well as drug delivery for wound healing. This article develops a PVA/alginate-based wound dressing material added with pepper extract to obtain its antibacterial properties. The sample preparation process consisted of several stages: the preparation of pepper extract by maceration method with ethanol solvent, preparation of PVA/Alginate hydrogel and addition of pepper extract, and testing. Antibacterial test using the paper disc method with the pathogen Staphyloccocus aureus showed that the extract had powerful antibacterial properties with an inhibition zone of about 22 m. Based on the FTIR analysis, it is known that the FTIR transmittance pattern of the PVA/alginate composite added with pepper is related to its constituent functional groups. The highest degree of swelling of the hydrogels prepared in this study was 188%.

Edukasi Masyarakat Mengenai Adaptasi Kebiasaan Baru Guna Mencegah Penyebaran Virus COVID-19 Di Desa Penyak Fitri Afriani; Yuant Tiandho
Dharma Pengabdian Perguruan Tinggi (DEPATI) Vol 1 No 1 (2021): Mei 2021
Publisher : Fakultas Teknik, Universitas Bangka Belitung

The COVID-19 pandemic that has spread to all countries has changed various human activities in the world. The new habitual adaptation policy is a policy taken by the Government of the Republic of Indonesia to prevent the spread of COVID-19 while still paying attention to the economic sector. Penyak Village is located in Koba District, Central Bangka Regency. As a village located adjacent to the sea, many residents in this village work as fishermen. Therefore, the new habit adaptation policy was welcomed by the community. To increase public understanding, the community service team provides education regarding the adaptation of new habits. The educational program is carried out through direct socialization and media such as posters and pocketbooks. Also, the educational program was followed by several activities such as spraying disinfectants, making handwashing facilities, blood donation, providing necessities to the community, and submitting educational media at the Penyak Village. Based on the evaluation using a questionnaire, more than 50% of the public stated that the educational media provided was of excellent quality and was influential in increasing understanding regarding the adaptation of new habits

GREEN SYTHESIS OF CUO USING Citrus x microcarpa BUNGE PEEL EXTRACT AND ANTIBACTERIAL ACTIVITY EVALUATION Afriani, Fitri; Lingga, Rahmad; Rafsanjani, Rifqi Almusawi; Tiandho, Yuant
Science Technology and Management Journal Vol. 5 No. 1 (2025): Januari 2025
Publisher : Fakultas Sains dan Teknologi, Universitas Nasional Karangturi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53416/stmj.v5i1.327

This article aims to synthesize CuO nanoparticles using the green synthesis method using Citrus x microcarpa Bunge peel extract, analyze their characteristics, and evaluate their antibacterial activity against the S. aureus. We investigated the role of the accelerator agent NaOH in the green synthesis of CuO nanoparticles. The presence of green synthesized CuO nanoparticles was confirmed by UV-Vis spectrophotometer and XRD. The use of NaOH in the green synthesis of nanoparticles accelerates the emergence of absorbance peaks around 400 nm, related to CuO's surface plasmon frequency. Calculation of crystallite size based on XRD diffractogram shows that NaOH can also act as a reducing agent. The smaller size of CuO nanoparticles will increase their stability when heated. In addition, green synthesized CuO nanoparticles showed high antimicrobial activity against S. aureus pathogens. These results indicate that CuO nanoparticles with antibacterial activity can be synthesized using an environmentally friendly and simple method.

Removing BOD, COD, and Decolorization of Batik Cual Wastewater using Fenton Mechanism Gusa, Rika Favoria; Sari, Diana Novita; Afriani, Fitri; Sunanda, Wahri; Tiandho, Yuant
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 10 No 1 (2021): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v10i1.8079

During the production of batik cual, thick-colored wastewater is produced. Unfortunately, the wastewater could damage the environment if it is disposed of without specific processing. The Fenton method is an advanced oxidation process (AOPs) that can degrade organic dyes found in liquid waste. In this research, the researchers studied the Fenton mechanism's application to the batik cual wastewater treatment. The Fenton's reagent used was H2O2 with FeSO4.7H2O. Some of the experimental wastewater treatment parameters were the values of biological oxygen demand (BOD), chemical oxygen demand (COD), the degradation efficiency of difficult to decompose organic materials, and the color degradation efficiency in batik cual wastewater. The results show that the Fenton mechanism’s efficiency of removing color from batik cual wastewater is up to 97.8%, COD and BOD removal efficiencies are 76.3% and 75.2%, and the degradation efficiency of difficult to decompose organic matter is 76.8%. Also, the researchers found that the higher amounts of FeSO4.7H2O increase the removal parameters effectiveness. Therefore, the Fenton mechanism can effectively improve the quality of wastewater in batik cual production.

MODIFIKASI DISTRIBUSI MUATAN BERDASARKAN DISTRIBUSI FERMI-DIRAC DAN APLIKASINYA PADA HUKUM GAUSS Tiandho, Yuant; Maryana, Okky; Afriani, Fitri; Saefullah, Asep; Pardede, Indra
JST (Jurnal Sains dan Teknologi) Vol. 9 No. 2 (2020)
Publisher : Universitas Pendidikan Ganesha

Hukum Gauss merupakan salah satu hukum fundamental fisika, khususnya dalam kajian listrik. Salah satu variabel penting untuk dapat menggunakan hukum Gauss adalah kemampuan menentukan muatan yang terlingkupi permukaan Gauss. Umumnya, definisi distribusi muatan suatu objek didefinisikan oleh fungsi sepenggal (piecewise continuous function). Pada makalah ini diajukan suatu model distribusi muatan yang berlaku untuk di seluruh lokasi. Model tersebut disusun berdasarkan analogi dengan fungsi distribusi Fermi-Dirac. Model yang diajukan mengandung fungsi eksponensial yang terkait dengan radius benda dan dilengkapi dengan suatu parameter untuk menghindari munculnya lekukan kurva yang bersifat tidak fisis. Distribusi muatan tersebut dapat digunakan untuk simulasi menghitung muatan yang terlingkupi oleh permukaan Gauss dan menentukan medan listriknya. Beberapa kasus yang ditinjau adalah objek bola padat serta bola konsentris. Jika dibandingkan dengan distribusi muatan konvensional, distribusi muatan termodifikasi lebih sederhana dan dapat mereduksi algoritma proses komputasi. Oleh karena itu hal ini dapat dimanfaatkan dalam pembuatan media pembelajaran berbasis komputer yang ringkas dan sederhana.

Co-Authors Andrian Saputra Anisa Indriawati Asep Saefullah Diana Novita Sari Diana Novita Sari, Diana Novita Evi . J Evi J Evi J Evi.J Evi.J Evi.J Evi.J Fadillah Ramadhani Herman Aldila Indra Pardede Jefri Akbar Kumalasari Kumalasari Kumalasari Kumalasari Lingga, Rahmad Lizia Miratsi Lizia Miratsi Mahjur Mahjur Mahjur Mahjur Maryana, Okky Megiyo Megiyo Megiyo Megiyo Muntaz Soraya Mustari Mustari Nur Hamrin Rafsanjani, Rifqi Almusawi Rahmad Lingga Ramli Ramli Rena Aprilianti Rifqi Almusawi Rafsanjani Rifqi Almusawi Rafsanjani Rika Favoria Gusa Robby Gus Mahardika Rospita Sari Sandi Sandi Sari Wulan Siska Oktaviyani Siska Oktaviyani Siswoyo Siswoyo Sito Enggiwanto Susanti Susanti Tri Kusmita Wahri Sunanda Widodo Budi Kurniawan Yekti Widyaningrum Yekti Widyaningrum Yohandri Yuant Tiandho Yulkifli Yulkifli Yunita Febriani Zaitun Zalva Humaeroh

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