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All Journal Jurnal Ilmu Dasar Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) Jurnal Rekayasa Energi Jurnal Matematika dan Sains (JMS) Taawun: Jurnal Pengabdian kepada Masyarakat
Ulfa Mahfudli Fadli
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Religion Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Physics Other

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Identification and Characterisation of “Black Sticky Rice” (Oriza Sativa Glutinosa) as Photosensitizer in Development of Dye Sensitized Solar Cells (DSSC) Agus Supriyanto; Ashari Bayu Prasada; Cari Cari; Ulfa Mahfudli Fadli
Jurnal ILMU DASAR Vol 17 No 1 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.254 KB) | DOI: 10.19184/jid.v17i1.2662

Abstract

It has successfully conducted a research to identify and characterize extract of black sticky rice  (Oryza Sativa Glutinosa) as photosensitizers in making of Dye Sensitized Solar Cells (DSSC). Samples were made in the sandwich structure of couple of working electrode and counter electrode. The extraction process of dye in the black sticky rice was stirred for 1 hour and then allowed to stand for 24 hours. Identification of samples using FTIR (Fourier Transform Infra-Red) to determine the chemical bond formed in the sample. Test the absorbance of the sample using UV-Visible Spectrophotometer Lambda 25 test and characterization of current and voltage (I-V) using a Keithley 2602A. The results showed maximum absorbance black rice extract appears in two peaks namely at = 324 nm and = 477 nm. While the I-V curve measurements indicate the efficiency of the resulting large black rice extract was 0.028% on a 12-hour soaking period and 0,032% in 24 hours soaking time. These results indicate that longer soaking could increase the efficiency of the resulting value.Keywords: Ketan Hitam (Oriza Sativa Glutinosa), DSSC,FTIR, UV-Vis, Keithley
Studi Kelistrikan dari Tanah dalam Pot Tanaman sebagai Bahan Elektrolit Sel Galvani Ulfa Mahfudli Fadli; Ardimas Ardimas; Abd. Basith; Vira Rahayu; Irasani Rahayu
Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2022: Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2022
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/prosidingsnfa.v7i0.71961

Abstract

Abstract: The use of conventional batteries can have negative impact on the environment. Galvanic cells as natural batteries are solution by utilizing electrolytes from nature. When two conductors namely Cu and Zn are connected through an electrolyte solution it will form a galvanic cell circuit so that a potential difference arises as a result of chemical reactions from electrodes. This study will examine the performance of soil in plant pots as an electrolyte. Galvanic cell performance is done by measuring voltage and current using voltmeter and ammeter. The independent variables are the humidity and acidity, which are measured with a pH-moisture meter. The tested soil showed an acidity value of around 7. This acidity result could mean that the soil sample containing plants was in normal condition, not acidic and not alkaline. As for the value of soil moisture, which is moist, with a value between 3 to 7. The resulting current and voltage tend to increase with the increase in the value of humidity. the average voltage value is 0.635 Volts and the average current is 0.185 mA, so it can be concluded that the soil containing plants on it can be recommended as an electrolyte in galvanic cell.Abstrak: Pemakaian baterai konvensional dapat berdampak buruk bagi lingkungan. Sel galvani sebagai baterai alami menjadi solusi dengan memanfaatkan elektrolit dari alam. Ketika dua konduktor yakni Cu dan Zn terhubung melalui larutan elektrolit maka akan membentuk rangkaian sel galvani sehingga beda potensial muncul sebagai akibat reaksi kimia di kedua elektrodanya. Penelitian ini akan mengkaji kinerja tanah dalam pot tumbuhan sebagai bahan elektrolit. Kinerja sel galvani dilakukan dengan mengukur tegangan dan arus menggunakan voltmeter dan amperemeter. Untuk variabel bebasnya adalah nilai kelembapan dan nilai keasaman, yang diukur dengan alat pH-moisture meter. Tanah yang diuji menunjukkan nilai keasaman (pH) disekitar 7. Hasil keasaman (pH) ini dapat diartikan bahwa sampel tanah yang terdapat tumbuhannya berada dalam keadaan normal, tidak asam dan tidak basa. Sedangkan untuk nilai kelembaban tanahnya yaitu bersifat lembab, dengan nilai diantara 3 sampai 7. Arus dan tegangan yang dihasilkan cenderung mengalami kenaikan terhadap kenaikan nilai kelembaban. nilai tegangan rata-rata sebesar 0,635 Volt dan arus rata-rata sebesar 0,185 mA, sehingga dapat disimpulkan bahwa tanah yang berisi tumbuhan diatasnya dapat direkomendasikan sebagai elektrolit pada sebuah sel galvani.
ANALISIS KONDUKTIVITAS LISTRIK PADA KITOSAN DARI LIMBAH RAJUNGAN DI PACIRAN SEBAGAI BAHAN ELEKTROLIT PADA BIO-BATERAI Trisna jaya Saputra; Ulfa Mahfudli Fadli; Abdul Basith
JURNAL REKAYASA ENERGI Vol. 2 No. 1 (2023): Jurnal Rekayasa Energi
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (287.906 KB) | DOI: 10.31884/jre.v2i1.29

Abstract

Baterai merupakan alat elektrokimia yang dibuat untuk mensuplai energi listrik ke sistem starter mesin, lampu-lampu, sistem pengapian dan komponen kelistrikan lainnya. Baterai merupakan sebuah media yang dapat mengubah energi kimia yang terkandung dalam bahan aktif secara langsung menjadi energi listrik. Elektroda dan elektrolit merupakan komponen utama pada baterai. Prinsip kerja pada baterai menggunakan prinsip elektrokimia dengan memanfaatkan proses reduksi-oksidasi. Elektroda positif (+) disebut anoda sedangkan elektroda negative (-) disebut katoda. Bio-Baterai adalah perangkat penyimpanan energi listrik yang elektrolitnya menggunakan bahan organik, Penggunaan polimer sintesis sebagai bahan elektrolit ternyata masih memiliki beberapa kekurangan. Selain harganya yang mahal, dampak lingkungan akibat menumpuknya sampah kimia juga menjadi salah satu permasalahan berbagai jenis material terus dikembangkan dalam pembuatan elektrolit pada bio-baterai. Kitosan mempunyai sifat pengikat ion, tidak beracun, biodegradable (dapat terurai) dan memiliki gugus pasangan elektron bebas yang bisa dijadikan elektrolit dengan nilai konduktivitas yang baik. Kitosan disintesis melalui tahap demineralisasi, deproteinasi dan deasetilasi kemudian dikarakterisasi menggunakan FTIR untuk memastikan bahwa gugus fungsi kitosan telah terbentuk. Pada pengujian konduktivitas, aquades yang ditambahkan kitosan terjadi peningkatan nilai konduktivitas.
EFEK PENYISIPAN Cu KE DALAM DYE BERAS HITAM DENGAN LUASAN 0,5 cm2 PADA DYE SENSITIZED SOLAR CELL (DSSC) Ulfa Mahfudli Fadli; Ardimas; Agus Supriyanto; Cari; Ashari Bayu Prasada
Jurnal Matematika dan Sains (JMS) Vol. 1 No. 1 (2021): Jurnal Matematika dan Sains (JMS)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55273/jms.v1i1.80

Abstract

Thanks to the addition of copper (Cu) metal into black rice (Oryza sativa L. indica) dye as an active material, It has been successfully developed Dye-Sensitized Solar Cells (DSSC). The structure of the sample as a sandwich consisting of the working electrode (TiO2), dye, electrode of platinum (Pt) and the electrolyte sandwiched between two electrodes. Extraction process of black rice Dye was stirred for 30 minutes, then mixed with copper metal (Cu) and be waited for 24 hours. Cu metal was obtained by stirring Copper Sulfate Pentahydrate for 2 hours. The Current and voltage (I-V) of the sample was characterized by using Keithley 2602A. The measurement results showed that the inserting Cu metal of 2 g (0.36 M) was reached the highest efficiency of 0.0217%.
Innovation in The Use of Organic Waste for Biobattery and Biogas Production at TPS3R Lamongan Ulfa Mahfudli Fadli; Rahmah Arfiah Ula; Fatayah; Achsani Ira Samsiyah; Aprielia Inzal Fillah Addurrotul Efendi
TAAWUN Vol. 5 No. 01 (2025): TA'AWUN FEBRUARY 2025
Publisher : Pusat Penelitian Pengabdian Pada Masyarakat Sekolah Tinggi Ilmu Tarbiyah Al-Fattah Siman Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37850/taawun.v5i01.871

Abstract

Organic waste that accumulates in the 3R Waste Processing Site (TPS3R) environment needs to be utilized as well as possible. The purpose of this community service activity is to utilize energy from organic waste as the main raw material for making biobattery and biogas. The final result of this community service is a tool that can convert energy from organic waste to electricity (biobattery) and produce gas (biogas). The community service method uses socialization and technology application workshops by assembling tools and materials. Biobattery and biogas equipment, if operated every day, can increase the utilization of organic waste by 17 kg, with 5 kg for biobattery and 12 kg for biogas. Biobattery cells containing around 100 mL of organic waste can produce a maximum voltage of 0.9 Volts and a maximum electric current of 6 mA. Biogas itself requires a sorting process and a fermentation process whose time is adjusted to the presence or absence of organic waste stock at TPS3R. The initial Biogas Place (Digester) requires 600 kg of organic waste. This community service work is expected to inspire the community, especially the Sekar Manfaat Sekaran Lamongan TPS3R Team, to better manage the waste in their surroundings.
Co-Authors Abd. Basith Abdul Basith Achsani Ira Samsiyah Agus Supriyanto Agus Supriyanto Aprielia Inzal Fillah Addurrotul Efendi Ardimas Ardimas Ardimas Ashari Bayu Prasada Ashari Bayu Prasada Cari Cari Cari Fatayah Irasani Rahayu Rahmah Arfiah Ula Trisna jaya Saputra Vira Rahayu