Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Crystina Simanjuntak"'
Autor:
Suci Aisyah Amaturrahim, Indah Revita Saragi, Crystina Simanjuntak, Saharman Gea, Boy Attaurrazaq
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100846- (2024)
Photocatalysis has attracted attention, utilizing solar energy directly to catalyze chemical reactions. This research synthesized Fe2TiO5/Ag/C nanocomposites as photocatalyst material using a wet milling process and confirmed with comprehensive chara
Externí odkaz:
https://doaj.org/article/4d4faf2d4cd64a73b863a01f9e55c3c6
Autor:
Muhammadin Hamid, Syahrul Humaidi, Hadi Wijoyo, Isnaeni Isnaeni, Indah Revita Saragi, Crystina Simanjuntak, Noor Haida Mohd Kaus, M.M.A. Kechik, Agus Nurbillah, Yazid Yaakob, Tulus Ikhsan Nasution
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100832- (2024)
The synthesis of NS-CDs was carried out using precursors from Cavendish Banana Peel and l-Cysteine as a dopant with the solvothermal method. The characteristics of NS-CDs were analyzed through High-resolution transmission electron microscopy (HR-TEM)
Externí odkaz:
https://doaj.org/article/e54d2295dfe743bdb2377652ac7ab950
Autor:
Muhammadin Hamid, Syahrul Humaidi, Indah Revita Saragi, Crystina Simanjuntak, Isnaeni Isnaeni, Azizah, Hadi Wijoyo
Publikováno v:
Carbon Trends, Vol 14, Iss , Pp 100324- (2024)
Ammonia (NH3) is one of the compounds found in water, and when it exceeds the threshold, it can become toxic, posing a problem for fish farmers. This research aims to reduce the ammonia (NH3) levels using activated carbon adsorbents based on nutmeg s
Externí odkaz:
https://doaj.org/article/d976ed38c5e849aa808062c333a23d25
Autor:
Rikson Siburian, Ab Malik Marwan Ali, Kerista Sebayang, Minto Supeno, Kerista Tarigan, Crystina Simanjuntak, Sri Pratiwi Aritonang, Fajar Hutagalung
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract In this paper, we report about chemically interaction between Pt Subnano-Clusters on Graphene Nano Sheets (GNS). The aim of this research is to clarify the size effect of Pt clusters on Pt 1–7 wt.%/GNS. This research is an experimental lab
Externí odkaz:
https://doaj.org/article/71d02cd72a6146fe9fbe87dbfeee1f57
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 39, Iss 6, Pp 211-214 (2020)
The large scale production of Graphene Nano Sheets (GNS) has fascinated many researchers. GNS was produced base on a sustainable raw material namely coconut fruit. Coconut fruit was converted directly to be GNS with ethanol assisted. Then, it was cha
Externí odkaz:
https://doaj.org/article/210b4717e7524a798f4fc560d3f05d5c
Autor:
Rikson Siburian, Fajar Hutagalung, Oktavian Silitonga, Suriati Paiman, Lisnawaty Simatupang, Crystina Simanjuntak, Sri Pratiwi Aritonang, Yatimah Alias, Lin Jing, Ronn Goei, Alfred Iing Yoong Tok
Publikováno v:
Materials, Vol 16, Iss 2, p 555 (2023)
In this article, we present the performance of Copper (Cu)/Graphene Nano Sheets (GNS) and C—π (Graphite, GNS, and Nitrogen-doped Graphene Nano Sheets (N—GNS)) as a new battery electrode prototype. The objectives of this research are to develop a
Externí odkaz:
https://doaj.org/article/8e88f470ca0245c6af33e6c41f808f4a
Autor:
Ab Malik Marwan Ali, Kerista Sebayang, Minto Supeno, Rikson Siburian, Sri Pratiwi Aritonang, Fajar Hutagalung, Crystina Simanjuntak, Kerista Tarigan
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Scientific Reports
Scientific Reports
In this paper, we report about chemically interaction between Pt Subnano-Clusters on Graphene Nano Sheets (GNS). The aim of this research is to clarify the size effect of Pt clusters on Pt 1–7 wt.%/GNS. This research is an experimental laboratory r
Application of coconut battery waste to graphic as an alternative electrode on primary battery cells
Publikováno v:
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat. 4:668-673
Coconut shell is one of the potential biomass as carbon sources. Coconut shell is converted to charcoal through the carbonization process. The potential of charcoal from coconut shells can be synthesized into graphene. Graphene is a derivative of one
Publikováno v:
THE INTERNATIONAL CONFERENCE ON CHEMICAL SCIENCE AND TECHNOLOGY (ICCST – 2020): Chemical Science and Technology Innovation for a Better Future.
Analysis of activity concentration of natural radioactive elements in volcanic ashes, cold lava and river waters has been carried out due to volcanic eruption of mount Sinabung. It was found the activity concentration of U-238, Ra-226, Th-228, Th-232
Publikováno v:
Agrintech: Jurnal Teknologi Pangan dan Hasil Pertanian. 1:123-126
This Research has been done in one of Junior and Senior High Schools of Dr. Wahidin Sudirohusodo by using water samples at the site for iron absorption by electrolysis method using aluminum electrode. By using visible spectrophotometer and standard s