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All Journal CHEMICA Jurnal Teknik Kimia SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System Teknologika Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Endah Purwanti
Universitas Singaperbangsa Karawang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : teknologika

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SYNTHESIS AND CHARACTERIZATION ACTIVATED CARBON FROM FISH BONE BY USING ACTIVATOR CaCl2 Endah Purwanti; Reni Rahmadewi; Vita Efelina; Iwan Sugihartono
Jurnal Teknologika Vol 10 No 1 (2020): Jurnal teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

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Abstract

Activated carbon is a porous solid containing 85-95% carbon, produced from carbonaceous materials by heating at high temperatures. Activated carbon has a very large surface area so it is suitable for applications requiring large contact areas such as in the adsorption field. Activated carbon can be made from fish bones because fish bones are removed as a waste containing carbon elements that can be used as raw material for making activated carbon. In the manufacture of activated carbon, not only raw materials that need to be considered, but also the process of activation. Activation of the charcoal can be carried out using CaCl2. For charcoal base material from fish bones containing lots of Ca and Mg elements, in addition to using the activator, also the activation process needs to be immersed in H2SO4. Characterization of activated carbons of synthesis include water content test, ash content test, and functional group analysis using FTIR spectroscopy. Based on the results FTIR shows specific peaks for as charcoal activated charcoal based on the literature. Based on the determination of the test water content and ash content obtained by activated charcoal from fish bones has a water content of 4,1% and ash content of 28,1%.
Pengendali Wiper dan Washer Otomatis Menggunakan Sensor Hujan dan Sensor Debu Berbasis Arduino Reni Rahmadewi; Wilma Nurrul Adzillah; Endah Purwanti; Vita Efelina; Raka Wahyu Utama
Jurnal Teknologika Vol 10 No 1 (2020): Jurnal teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

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Abstract

Safety in driving is an important thing that must be considered to avoid traffic accidents. One of the factors causing the accident is the weather with a percentage reaching 13%, the driver will not focus on driving the car. Wiper control technology and automatic washer are applied to facilitate humans in driving. This system reads the intensity of rain and dust with a sensor then automatically the data is processed with a microcontroller. The output used in this system uses a stepper motor and Washer pump motor. Uses Arduino Uno and Fuzzy logic to make it easy as an automatic control system. The experimental results obtained are the speed of movement of the Wiper adjusts to the amount of water and dust input intensity received by the sensor. The success value of the Matlab output with the manual count output value is 98.26%, between the value of the manual count output with the actual output value of 96.83% and between the Matlab output value with the actual LCD output value of 96.95%
KARAKTERISASI OPTIK EKSTRAK BAYAM MERAH (RED AMARANTH) UNTUK APLIKASI DYE SENSITIZED SOLAR CELL (DSSC) Vita Efelina; Endah Purwanti; Farradina Choria Suci; Arnisa Stefanie; Reni Rahmadewi
Jurnal Teknologika Vol 10 No 1 (2020): Jurnal teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

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Abstract

We report how the prepare red amaranth extract. In this study, red amaranth extract was made using the maceration method. Energy is one of the basic needs for human life. One alternative to overcome the electricity crisis is the use of solar energy. Development of solar cells continues, until now many researchers are modifying basic materials using dyes commonly called Dye Sensitized Solar Cells (DSSC). This DSSC has great potential to be developed. Dyes commonly used as doping are synthetic and natural dyes. In this study using red spinach or red amaranth because red spinach has a pigment that can be used to substitute for synthetic colors. So far there has been no in-depth study examining the optical properties of the dye red amaranth extract material. Therefore, this research has carried out a study of the fundamental optical properties of the dye red amaranth extract material. Red amaranth extract caracterized by UV Vis and FTIR spectroscopy. Red amaranth absorbance occurs at wavelength of 432 nm and 663 nm.
Co-Authors Arnisa Stefanie Asep Maulana Azafilmi Hakiim Billy Nugraha Danny Ramdani Eri Widianto Farradina Choria Suci Ibrahim Ibrahim Iqbal Maulana Iwan Sugihartono Jojo Sumarjo Najmudin Fauji Raka Wahyu Utama Reni Rahmadewi Riza Ibnu Adam Rizal Hanifi Sarah Dampang Sulistyo Sidik Purnomo Tesa Nur Padilah Vita Efelina Wilma Nurrul Adzilla