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Miratsi, Lizia
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Astronomy Computer Science & IT Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Journal : Jurnal Riset Fisika Indonesia

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Penerapan Metode Elektrokoagulasi Dalam Peningkatan Kualitas Larutan FeCl3.6H2O Miratsi, Lizia; Kurniawan, Widodo Budi; Indriawati, Anisa
Jurnal Riset Fisika Indonesia Vol 5 No 1 (2024): Desember 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i1.4415

Abstract

Electrocoagulation is a method that is often used to improve the quality of solutions. The electrocoagulation method has the advantages of not using chemical additives, easy and inexpensive operation, and having high efficiency in removing pollutants and contaminants. In this method, the pollutants obtained are easy to separate because of the floating surface of coagulated sediments called flocs. The solution used is FeCl3.6H2O solution as a source of iron content and a replacement medium for water or solutions containing iron. The iron content in water is more dominant than other heavy metals, whereas in excess it can cause health problems. In this study, a standard iron solution was used at 10 ppm variations using the electrocoagulation method using an aluminum plate at a voltage of 25 volts and a time of 60 minutes, and testing for pH, TDS, and UV-Vis was carried out. Obtained after the electrocoagulation process of the Fe standard solution, each concentration experienced an increase in quality, in the form of a significant decrease in Fe concentration (ppm), an increase in the pH value from 3 to 5, and a decrease in the TDS value of 80.69% -85.88%. So, the electrocoagulation method can be applied to improve the quality of a solution.
Sintesis dan Karakteristik CaCO3 dari Cangkang Kerang Kepah (Polymesoda erosa) sebagai Doping Anoda Baterai Lithium-Ion Trisakti, Yunior; Miratsi, Lizia; Kurniawan, Widodo Budi
Jurnal Riset Fisika Indonesia Vol 3 No 1 (2022): Desember 2022
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v3i1.3548

Abstract

Synthesis and Characteristics of CaCO3 from Kepah Clam Shells (Polymesoda erosa) as Anode Doping of Lithium-Ion Batteries LTO (Lithium Titanate Oxide) or Li4Ti5O12 is one of the candidates for graphite replacement anode material in the production of Lithium-ion batteries. However, LTO materials have the disadvantage of low electrical conductivity, which limits the working level of the battery. Kepah clam shells are one of the wastes that have not been widely used even though the amount is still very abundant, and is expected to have the potential to be in the source of CaCO3 because it contains high amounts of calcium. Therefore, this study aims to determine the content of CaCO3 in the shell of the kepah clam (Polymesoda erosa) and determine the conductivity value of the LTO anode doped with CaCO3 of the kepah clam shell. The synthesis method used is the solid state reaction method with variations in doping concentrations of 0.00 mol, 0.10 mol, 0.15 mol, and 0.20 mol. The results of XRF analysis on the shell powder showed that the most dominant element content was Ca which was 97.63%. So it shows that calcium carbonate (CaCO3) from the shells of kepah mussels was successfully prepared. Furthermore, the anode active material was obtained, which if obtained XRD results and analyzed would show the absence of the CaCO3 phase, and there was no doping influence, then the active material powder was synthesized Li4Ti5O12 anode sheet doped CaCO3 shell. As for knowing the conductivity value of the Li4Ti5O12 anode sheet doped by CaCO3 clam shells, it is further characterized using Electrochemical Impedance Spectroscopy (EIS).
Penerapan Metode Elektrokoagulasi Dalam Peningkatan Kualitas Larutan FeCl3.6H2O Miratsi, Lizia; Kurniawan, Widodo Budi; Indriawati, Anisa
Jurnal Riset Fisika Indonesia Vol 5 No 1 (2024): Desember 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i1.4415

Abstract

Electrocoagulation is a method that is often used to improve the quality of solutions. The electrocoagulation method has the advantages of not using chemical additives, easy and inexpensive operation, and having high efficiency in removing pollutants and contaminants. In this method, the pollutants obtained are easy to separate because of the floating surface of coagulated sediments called flocs. The solution used is FeCl3.6H2O solution as a source of iron content and a replacement medium for water or solutions containing iron. The iron content in water is more dominant than other heavy metals, whereas in excess it can cause health problems. In this study, a standard iron solution was used at 10 ppm variations using the electrocoagulation method using an aluminum plate at a voltage of 25 volts and a time of 60 minutes, and testing for pH, TDS, and UV-Vis was carried out. Obtained after the electrocoagulation process of the Fe standard solution, each concentration experienced an increase in quality, in the form of a significant decrease in Fe concentration (ppm), an increase in the pH value from 3 to 5, and a decrease in the TDS value of 80.69% -85.88%. So, the electrocoagulation method can be applied to improve the quality of a solution.
Co-Authors Indriawati, Anisa Junaidi Junaidi Trisakti, Yunior Widodo Budi Kurniawan Yulinda yulinda