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All Journal Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) Indonesian Physical Review Online Learning in Educational Research Jurnal Matematika dan Sains (JMS)
Ardimas, Ardimas
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Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Mathematics Physics

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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%.
SINTESIS KOMPOSIT NANO PANI/Fe3O4 KONDUKTIF BERBASIS PASIR ALAM Hamid, Abd Basith; Sholichah, Nikmatin; Rahayu, Vira; Ardimas, Ardimas; Fadhli, Ulfa Mahfudli
Indonesian Physical Review Vol. 4 No. 2 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i2.94

Abstract

Polyaniline is a polymer material that has unique physical and even chemical properties, especially in its electrical properties. PANi synthesis can be carried out by chemical and electrochemical oxide reaction methods. The purposes of this study are to synthesize PANi and PANi / Fe3O4 composites by chemical oxide reactions and measure their conductivity. This research begins with the synthesis of iron oxide (Fe3O4) from natural iron sand and then followed by the synthesis of PANi / Fe3O4 composites using copreticipitation method. The Fe3O4 crystal phase was determined by using XRD, while the vibrational mode and morphology of the PANi / Fe3O4 nanocomposite was observed using FTIR and SEM. The conductivity properties were measured using a LCR meter. Furthermore, the conductivity properties were measured using a LCR meter and the result reveals a greater conductivity value as increasing the concentration of Fe3O4, the highest conductivity value of 3.1 mS/cm is known by the sample with an iron oxide concentration of 1 %. While the samples with a concentration of 0.5 % of iron oxide has conductivity values  of 2.8 mS/cm and pure PANi of 2.1 mS/cm. Due to its properties such  to inert to the environment and having conductive properties, the obtained PANI / Fe3O4 composite can be employed as a super capacitor electrode.
Dynamic Electrical Subject for Senior High School: Developing Interactive Tutorial Method Animation Ardimas Ardimas; Abd Basith; Rendy Priyasmika; Jhelang Annovasho; Norma Sidik Risdianto
Online Learning In Educational Research (OLER) Vol. 1 No. 2 (2021): Online Learning in Educational Research
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1043.633 KB) | DOI: 10.58524/oler.v1i2.72

Abstract

In recent years the need for digital technology in various fields is in great demand, including in education fields. This is due to digital technology which makes it easier for students to understand the material and increase learning interest. To increase students' understanding and interest in learning about dynamic electrical material, the Interactive Tutorial Method Animation (ITMA) was developed using Adobe Flash Professional CS6. This research was conducted at the SMA (Senior High School) Laboratory at Islamic University Sunan Kalijaga, Yogyakarta. This model refers to the elaboration research procedure by Borg and Gall. Data were collected using a questionnaire instrument which contained: validation, response, and assessment sheets. Qualitative assessment data from 7 experts on ITMA quality were used as a reference for initial product revisions. Then the qualitative data of student responses were determined using the Guttman statement scale. Ideal percentage and agreement were used to analyze the data of preliminary and main fields, respectively. The results of the experts' evaluation showed very good results, each of which was 92.8% for the material aspect, 91.6% for the media aspect, and 95.2% for the learning aspect. The final product of ITMA received a good response from students with a 96% approval rate. Therefore, it is suggested that the development of ITMA has increased students interest in dynamic electricity subject.
Studi Kelistrikan dari Tanah dalam Pot Tanaman sebagai Bahan Elektrolit Sel Galvani Fadli, Ulfa Mahfudli; Ardimas, Ardimas; Basith, Abd.; Rahayu, Vira; Rahayu, Irasani
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.
Co-Authors Abd Basith Abd Basith, Abd Agus Supriyanto Ashari Bayu Prasada Cari Hamid, Abd Basith JHELANG ANNOVASHO Norma Sidik Risdianto Priyasmika, Rendy Rahayu, Irasani Rahayu, Vira Sholichah, Nikmatin Ulfa Mahfudli Fadli