Article Per Year (5 Year)
p-Index From 2019 - 2024
0.444
P-Index
This Author published in this journals
All Journal Edumatsains Jurnal Riset Fisika Indonesia
Evi J
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Astronomy Chemistry Computer Science & IT Earth & Planetary Sciences Education Materials Science & Nanotechnology Mathematics Physics

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

Found 2 Documents
Search

 1 
Green-Synthesis Nanopartikel SnO2 Termediasi Ekstrak Daun Pelawan (Tristaniopsis merguensis Griff.) Mustari Mustari; Evi J; Aliefia Noor; Rifqi Almusawi Rafsanjani; Yuant Tiandho
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 1 (2019): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i1.1043

Abstract

SnO2 nanoparticles are materials that have great potential in gas sensor devices. In this article, the synthesis of SnO2 nanoparticles is carried out through the mediation of pelawan (Tristaniopsis merguensis Griff.) leaf extract. The use of mediators of natural materials in this synthesis aims to make the synthesis process more environmentally friendly and lower in cost compared to conventional chemical and physical methods. Pelawan extract contains high antioxidant compounds. Thus, it can inhibit the agglomeration of SnO2 particles. Based on the variation of pH synthesis, it is known that the highest purity of SnO2 phase occurs at pH 7 while for alkaline conditions, there is an impurity, i.e., Sn6O4(OH)4. Calcination temperature has a very significant effect on the growth of SnO2 nanoparticle crystals. High temperatures will increase the size of the crystallite and the crystallinity. Keywords: green-synthesis, pelawan, tin oxide
Analisis Hubungan antara Kemurnian Madu dengan Sifat Fisisnya Yuant Tiandho; Evi J; Deden Nurdandi; Fenni Vavionita; Eri Gusnia; Umi Awaliyah
Jurnal Riset Fisika Indonesia Vol 1 No 2 (2021): Juni 2021
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.78 KB) | DOI: 10.33019/jrfi.v1i2.2010

Abstract

Public awareness of the benefits of honey has increased the amount of honey consumption. This encourages the circulation of impure honey in the market by irresponsible traders. Therefore, characteristic information of honey is needed as a basis for honey purity testing methods. Physical characteristics analyzed in this study are the refractive index, permittivity, density and color quantization of honey. In general, it can be seen that the higher the concentration of honey, the higher the refractive index and its density and inversely proportional to the permittivity. Color analysis also shows that concentration is inversely proportional to the color intensity level.
Co-Authors Aliefia Noor Deden Nurdandi Eri Gusnia Fenni Vavionita Mustari Mustari Rifqi Almusawi Rafsanjani Umi Awaliyah Yuant Tiandho