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All Journal Program Kreativitas Mahasiswa - Penelitian Jurnal Fisika Unand Jurnal Riset Kimia Jurnal Litbang Industri Indonesian Journal of Chemistry Proceedings of the 1st UR International Conference on Educational Sciences JOPS (Journal Of Pharmacy and Science) Jurnal Hilirisasi IPTEKS (JHI) Eksakta : Berkala Ilmiah Bidang MIPA Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Hydrogen: Jurnal Kependidikan Kimia Jurnal Litbang Industri Journal of Educational Sciences Jurnal Katalisator Jurnal Kimia Unand Journal of Science and Clinical Pharmacy Research
Deswati Deswati
Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Andalas
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Veterinary Other

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Sintesis Karbon Aktif Dari Batang Jagung(Zea mays L.) dengan Metoda Dehidrasi Asam Untuk Aplikasi Elektroda Superkapasitor Tetra, Olly Norita; Syukri, Syukri; Santoni, Adlis; Deswati, Deswati; Fajarandi, Nabiel; Emriadi, Emriadi
Jurnal Fisika Unand Vol 13 No 6 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.6.834-842.2024

Abstract

Activated carbon from corn stalks (Zea mays L.) has been successfully synthesized by the dehydration method and used as a supercapacitor electrode. Corn stalk powder was dehydrated with 1 MH2SO4 and activated with 5 M NaOH at a carbon and activator mass ratio of 1:4 with a heating temperature of 800°C and an N2 gas heating rate of 10°C/minute for 1 hour. SEM characterization results show that heterogeneous pores have formed on the surface of corn stalk-activated carbon. EDX results showed a carbon percentage of 54.82%; this data is supported by FTIR results, which show several functional groups containing C and O atoms on the surface of activated carbon. Based on desorption adsorption isotherm analysis, the activated carbon shows H4 type with a specific surface area of 117.973m2/g, average pore diameter of 1.730 nm and total pore volume of 0.1021 cm3/g. Measurement of the electrochemical properties of corn stalk activated carbon with a three-electrode system and 3 M KOH electrolyte showed a specific capacitance value of 133.9 F/g, power density 225.2 W/kg and energy density 0.863 Wh/kg. The synthesis of activated carbon through the dehydration method offers advantages in terms of simplicity in preparation, low cost, shorter synthesis time and being environmentally friendly.
The Presence of Microplastics in Shellfish: A Review Aura, Selfi Monica; Deswati, Deswati; Emriadi, Emriadi
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 1 (2024): February 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i1.10820

Abstract

This study aims to find the presence of microplastics in Shellfish through the literature review method of several studies conducted. The increase in plastic pollution in water systems since the 1950s has become a significant problem worldwide due to the slow decomposition rate. Microplastics, mainly primary and secondary, can accumulate in marine organisms such as Shellfish and enter the food chain, which is a concern for humans. Shellfish, especially M. galloprovincialis, can be used as bioindicators and bioremediation tools to tackle microplastic pollution. Microplastics are a severe problem in the world's oceans, especially in marginal and densely populated coastal areas. Marine organisms like Shellfish contain microplastics, which can cause physical damage and disrupt the immune system. Mytilus edulis clams and Crassostrea gigas oysters are the most consumed species with significant microplastic content. Research has also shown the presence of microplastics in Mytilus chilensis in the Gulf of Ushuaia, South America, with fibers and fragments being the most common types. Microplastics are also found in wild mussels in Tunisia, with the estimated annual dietary intake of microplastics by Tunisians through wild mussel consumption amounting to 4.2 particles per capita per year. Mussels of the genus Mytilus were proposed as guardian organisms to monitor microplastic pollution.
Co-Authors A.A. Ketut Agung Cahyawan W Adewirli Putra Adlis Santoni Agustiva Agustiva Anthoni Agustien Arnentis Arnentis, Arnentis Aura, Selfi Monica Azimatur Rahmi Bustanul Arifin Bustanul Arifin BUSTANUL ARIFIN Buty Kurnia Hamzani Chairul Chairul Chessia Nodifa Putri Citra Buhatika Devahimer Harsep Rosi Efmisa, Ariesta Kirana Efrizal Efrizal Efrizal Efrizal Elma Fadrita Rahman Emriadi - Evi Suryawati Fajarandi, Nabiel Farnandi, Rido Hamdhan Fathony Hamzar Suyani Hilfi Pardi Imelda - Khairil Armal Kiki Fatmala, Kiki L.N. Firdaus, L.N. Firdaus Mai Efdi Mai Efdi Mariani Natalina Matlal Fajri Alif Murdiman, Imelda Nabiel Fajarandi Nadia Nadia Nilam Sari Novesar Jamarun Novesar Jamarun Novsimapera, Gatri Nurmiati Nurmiati Nurmiati Nurmiati Olly Norita Tetra Putri Ramadhani Putri, Anggi Nabila Raesa Pratiwi Putri Rahmiana Zein Rido Farnandi Rosi, Devahimer Harsep Rusnam Rusnam Safni Safni Safni Salmariza Sy Sofyan Sofyan Suci Wulandari Suryani, Hamzar Suryati Suryati Suryati Suwirmen, Suwirmen Suwondo Suwondo Syukri Arief Syukri Arief Syukri Syukri Syukri Syukri Umiati Loekman Umiati Loekman Umiati Loekman Vanella Indah Pratiwi Yetria Rilda Yulia - Yulizar Yusuf Yulizar Yusuf Yunita Salamah Zakaria, Indra Junadi Zeni, Izza Fildza Zilfa Zilfa Zuhri Syam Zuhri Syam