Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Aman Santoso"'
Autor:
Aman Santoso, Laili Ramadhan, Bambang Susilo, Sukarni Sukarni, Anugrah Wijaya, Sumari Sumari, Muntholib Muntholib, Indah Nur Pramesti, Muhammad Roy Asrori
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 16, Iss 3 (2024)
Waste cooking oil has the potential to be a raw material for biodiesel. The use of heterogeneous catalysts and ultrasonicator will optimize the transesterification and environmentally friendly. Transesterification study of waste cooking oil with SrO-
Externí odkaz:
https://doaj.org/article/85125418a4dd4d7bbbc58b67a6d738a2
Autor:
Eko. K. Sitepu, Reni P. A. Sinaga, Bryan E. N. Sitepu, Aman Santoso, Bambang Susilo, Binawati Ginting, Sabarmin Perangin-angin, Juliati Br. Tarigan
Publikováno v:
ACS Omega, Vol 9, Iss 13, Pp 15232-15238 (2024)
Externí odkaz:
https://doaj.org/article/8ca1695abd054806af97018213ea59f0
Autor:
Sumari Sumari, Sukrawati Arni, Aman Santoso, Liqanatul Putri Sholikah, Muhammad Roy Asrori, Agus Budianto
Publikováno v:
Heliyon, Vol 10, Iss 13, Pp e33563- (2024)
Malang quartzite contains a highly silica content. The silica changes the structural composition of Zeolite Y. Currently, a heterogeneous catalyst is developed to optimize transesterification of Off Grade CPO (Crude Palm Oil). The aims of this study
Externí odkaz:
https://doaj.org/article/d286439d0b06458ba8bf0a468da3f35c
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 9, Iss , Pp 100676- (2024)
Zeolite A is a zeolite with the smallest Si/Al ratio. The aim of this research is to characterize the synthesis of metal oxide/zeolite A through XRD and FTIR results, and to evaluate the treatment without calcination in the synthesis of metal oxide/z
Externí odkaz:
https://doaj.org/article/e81bef472eca439bb3e4ee9ef3da707d
Publikováno v:
Eclética Química, Vol 48, Iss 3, Pp 27-35 (2023)
The effect of the Cooperative Integrated Reading and Composition (CIRC) approach on scientific literacy and students’ regulated learning in colligative properties of solution was explored. The contribution of the CIRC approach was measured by inves
Externí odkaz:
https://doaj.org/article/eddfa4859790422eb1d31d19cb503bee
Publikováno v:
Indonesian Journal of Chemical Research, Vol 11, Iss 3 (2024)
This research evaluates refining waste cooking oil with active natural zeolite, utilizes it for biodiesel synthesis, and characterizes the synthesized methyl ester. This experimental laboratory research was carried out: (1) activation of natural zeol
Externí odkaz:
https://doaj.org/article/60282580cbda49e1ac8fc64b5f318be4
Publikováno v:
AIMS Materials Science, Vol 10, Iss 2, Pp 227-248 (2023)
In this work, the Fe3O4 nanoparticles from natural iron sand were doped with Mn and combined with reduced-graphene oxide (rGO) to obtain MnxFe3–xO4/rGO nanocomposites with mole fraction variations of the Mn of 0.25, 0.5, and 0.75. The crystalline p
Externí odkaz:
https://doaj.org/article/fe32dcf6287240b8ad326b0ed34e7463
Autor:
Yoto Yoto, Nurul Rahma Ulfatin, Azizatuz Zahro, Andika Bagus Putra, Mahfudi Sahly Subandi, Rochmawati Rochmawati, Aman Santoso
Publikováno v:
Jurnal Ilmu Pendidikan, Vol 28, Iss 2, Pp 98-104 (2022)
The digital technology-based heutagogy learning model characterizes the progress of implementing vocational education in a nation. This study aims to develop a heutagogy learning model for vocational students through mapping its components. The metho
Externí odkaz:
https://doaj.org/article/067305f28aef4f4bb25ed2737780b5b2
Autor:
Aman Santoso, Titania Nur Kusumah, Sumari Sumari, Anugrah Ricky Wijaya, Rini Retnosari, Ihsan Budi Rachman, Siti Marfuah, Muhammad Roy Asrori
Publikováno v:
AIMS Energy, Vol 10, Iss 5, Pp 1059-1073 (2022)
The synthesis of biodiesel via transesterification needs to be improved by the heterogeneous catalysts. So, the study aimed to determine the best conditions for the synthesis of biodiesel produced through a transesterification reaction using waste co
Externí odkaz:
https://doaj.org/article/cce9adaaf04b4be49f0262ded1520650
Autor:
Aman Santoso, Novita Agustin, Sumari Sumari, Siti Marfuah, Rini Retnosari, Ihsan Budi Rachman, Anugrah Ricky Wijaya, Muhammad Roy Asrori
Publikováno v:
AIMS Materials Science, Vol 9, Iss 5, Pp 719-732 (2022)
Biodiesel products show corrosive properties. Biodiesel contains components of saturated and unsaturated esters which tend to be unstable, sensitive to light, temperature, and metal ions. Thus, the study aims to synthesize biodiesel from various vege
Externí odkaz:
https://doaj.org/article/572a915da17342e390ee3ca3b8a94d30