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All Journal Humano: Research Journal Journal of Energy, Material, and Instrumentation Technology
Mega Pertiwi, Mega
Universitas Diponegoro
Arts Humanities Control & Systems Engineering Education Electrical & Electronics Engineering Energy Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Effect of Variation H2SO4 on the Manufacture of Nanocellulose from Corn Cobs Pertiwi, Mega; Manurung, Posman; Suciyati, Sri Wahyu; Karo, Pulung Karo
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 3 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i3.173

Abstract

The acid hydrolysis method has been used to manufacture nanocellulose from corn cobs. This study aims to determine the effect of variations in the concentration of H2SO4 on the characteristics of nanocellulose produced from corn cobs and their surface morphology. The variations of H2SO4 used were 5, 10, 15, and 20%. X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) are characterizations used. The results of XRD characterization showed that the crystallite size obtained followed the nanocellulose crystallite size, which was 1.79-2.59 nm. The SEM characterization showed that the resulting nanocellulose's surface morphology was lumpy and non-porous.
PENGARUH KEMUDAHAN BERTRANSAKSI TERHADAP KEPUTUSAN MENGUNAKAN AGEN BRILINK ALFIN DESA LILIRIAWANG KECAMATAN BENGO KABUPATEN BONE Pertiwi, Mega; Akib, Haedar; S., Muh Rizal; Niswaty, Risma; Aslinda, Andi
Humano: Jurnal Penelitian Vol 14, No 2 (2023): PERIODE NOVEMBER
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/humano.v14i2.6108

Abstract

This research examines the influence of ease of transacting on decisions using brilink agents. The purpose of this study was to determine the level ofease of transacting with brilink agents, to find out the level the decision to use a brilink agent, and to determine the effect of usage decisions on ease of transaction on the brilink agent. This research approach is quantitative. This research was carried outin Liliriawang Village, Bengo District, Bone Regency. Sources of data in the study areAlfin's Brilink Agent Customerin November 2021. Data collection techniques are in the form of observation, questionnaires, interviews, and literature studies. Data analysis techniques in the form of normality test, descriptive analysis, simple linear regression analysis, t test, correlation coefficient analysis, and analysis of the coefficient of determination. The results of the study indicate that the indicators used in each of these variables indicate where the ease of transactions is in the very good category. The indicators on the use decision variables are in the very good category. Based on the correlation test, there is a very high relationship between the two variables. It can be concluded that there is an influence between the ease of transactions on the decision to use a brilink agent.
Co-Authors Aslinda, Andi Haedar Akib Karo, Pulung Karo Posman Manurung Risma Niswaty S., Muh Rizal Sri Wahyu Suciyati