Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
R. Farma
Jurusan fisika, Universitas Riau, Simpang baru, Pekanbaru, 28293
Electrical & Electronics Engineering Energy Physics Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
KARAKTERISASI PARTIKEL PRA-KARBON DARI BUNGA RUMPUT GAJAH (PENNISETUM POLYSTACHYON) DENGAN CAMPURAN SURFAKTAN ANIONIK SODIUM DODESIL SULFAT SEBAGAI BAHAN DASAR SUPERKAPASITOR E. Taer; H. Halim; R. Farma; R. Taslim
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 4 (2015): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2015
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (533.687 KB)

Abstract

A research on the manufacture of pre-carbonized particles (PCP) in nano-meter size from elephant grass flower has been studied. The process of making (PCP) using a combination of ballmilling methods and the addition of the anionic surfactant sodium dodecyl sulfate and followed by chemical activation using KOH. Pre-carbonization processes carried out at a temperature of 280 °C and then followed by milling and sieving process to obtain the particle size smaller than 38 μm. The next stages of the sample (PCP) is mixed with a two concentrations of surfactant are 0.5 M and 1.5 M. The final stages to produce the (PCP) using a process of ballmilling with milling time of 80 hours and was closed by chemical activation using KOH activator with a concentration of 0.7 M. Scanning Electron Microscope (SEM) images showed the (PCP) in the particle size range of 100 - 200 nm. Analysis with energy dispersiv X-rays showed the carbon contentin in the sample of 52%. Results of X-ray data diffraction found that the carbon peak at 2θ angles, namely 26,2690 and 45,3470 that describes the elements carbon with a crystal orientation (002) and (100). Keywords:Elephant Grass, surfactants, Ballmilling, Partikel Pre-carbon.
KARAKTERISASI SIFAT FISIKA KARBON AKTIF TEMPURUNG KELAPA DENGAN VARIASI KONSENTRASI AKTIVATOR SEBAGAI KONTROL KELEMBABAN E. Taer; T. Oktaviani; R. Taslim; R. Farma
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 4 (2015): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2015
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (341.786 KB)

Abstract

Has successfully carried out a study of the effect of different concentrations of KOH activator in coconut shell charcoal as a humidity control. KOH concentration on the activation process of coconut shell charcoal varied as much as 1 M, 2 M and 3 M. The activation process is done for two hours at room temperature. The activated carbon is washed using distilled water until the pH of the washing water became neutral and then followed by drying for 24 hours at a temperature of 100ËšC. Physical properties was studiod suchasi, surface morphology, element content and degree of cristalinity using a Scanning Electron Microscope, Energy Dispersive X-Ray and X-Ray Diffraction instrumen. Coconut shell activated carbon used as the coating material for tosting chamber. The study of humidity charavationtic with time priode of 15 minutes for 2 hours. Humidity value at the end of 2 hours of testing for concentration of carbon with 1, 2 and 3 M KOH is 89%, 88% and 85% respectively. This study shows the activation of KOH concentration depending on coconut shell carbon effect on humidity test chamber. Keywords: coconut shell, potassium hydroxide, Humidity.
Co-Authors E. Taer Erman Taer H. Halim R. Taslim R. Taslim T. Oktaviani