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Journal : Jurnal Pendidikan Fisika dan Sains (JPFS)

Pengembangan Media Animation Series Terintegrasi Education for Sustainable Development Untuk Memfasilitasi Visualization Learning Pada Materi Energi Terbarukan Yusifa, Agni; Saefullah, Asep; Septiyanto, Rahmat Firman
Jurnal Pendidikan Fisika dan Sains (JPFS) Vol 7 No 2 (2024): September
Publisher : Pendidikan Fisika, FKIP, Universitas Nahdlatul Ulama Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52188/jpfs.v7i2.754

Abstract

This research was conducted against the backdrop of the emergence of problems in the use of fossil energy which caused Indonesia to have an energy crisis. Education is one of the efforts to prevent the energy crisis. Therefore, research on the development of teaching media integrated with Education for Sustainable Development (ESD) was conducted. The purpose of this study was to determine the results of material and media validation and students' responses to the acceptance of teaching media. This research has developed ESD integrated animated video teaching media to facilitate visualisation learning on renewable energy material. This research method uses R&D with Thiagarajan's modified 4-D research model with stages namely define, design and development. This research. The results of material expert validation obtained a percentage of 83.7% which was categorised as very feasible and media validation obtained a percentage of 85.4%. Student response to teaching media obtained a percentage of 87.7% which is categorised as very good.
Pengaruh Carbon Dots Dari Kulit Kentang Dengan Teknik Iradiasi Gelombang Mikro Terhadap Pertumbuhan Tanaman Cabai Kurnia, Selvi; Septiyanto, Rahmat Firman; M, Yus Rama Denny; Affifah, Isriyanti
Jurnal Pendidikan Fisika dan Sains (JPFS) Vol 8 No 1 (2025): Maret
Publisher : Pendidikan Fisika, FKIP, Universitas Nahdlatul Ulama Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52188/jpfs.v8i1.1111

Abstract

Carbon Dots (C-dots) are carbon-based nanomaterials that have fluorescent properties, are environmentally friendly, and are easily synthesized from organic waste materials. This research aims to synthesize C-dots from potato skins using the microwave irradiation method as an environmentally friendly and economical alternative to increase the growth of chili plants. Application tests on chili plants were carried out by adding C-dots solution to the growing medium in various concentrations (control, 50 mg/L, 60 mg/L, and 70 mg/L). Observation results showed that chili plants watered with C-Dots showed optimum growth rates found to occur with 50 mg/L carbon dots, compared to the control study, which shows a balance between growth stimulation and effective nutrient absorption without causing toxicity effects on the plants. Then, the resulting C-Dots samples were characterized using a UV-Vis Spectrophotometer using a wavelength range of 200-800 nm. The results of measurements with a UV-Vis spectrophotometer showed absorption at a wavelength of 251 nm and showed an absorbance peak of 4.379.