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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Geliga Sains: Jurnal Pendidikan Fisika Jurnal Sains Dasar JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI JOURNAL ONLINE OF PHYSICS Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA Jambura Physics Journal ALKIMIA : Jurnal Ilmu Kimia dan Terapan Kumawula: Jurnal Pengabdian Kepada Masyarakat Journal of Appropriate Technology for Community Services Indonesian Review of Physics (IRiP) Jurnal Riset Fisika Indonesia Time in Physics: Journal for Theoretical, Instrumentation, Material-Molecular, and Education Physics
Widodo Budi Kurniawan
Jurusan Fisika, Universitas Bangka Belitung
Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences

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Journal : Jurnal Riset Fisika Indonesia

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The Effect Of Contact Time Variations On The Efficiency Value And The Adsorption Kinetic Mechanism Of Iron (Fe) On Batik Waste Cual Using Chitosan Kurniawan, Widodo Budi; Aldila, Herman; Livia, Livia
Jurnal Riset Fisika Indonesia Vol 2 No 2 (2022): Juni 2022
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v2i2.3221

Abstract

English
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).
Pengaruh Penambahan Karbon Aktif Dari Kulit Lada dan Suhu Aktivasi Karbon terhadap Nilai Konduktivitas Anoda Berbasis LTO Akbar, Jefri; Kurniawan, Widodo Budi; Widyaningrum, Yekti; Indriawati, Anisa
Jurnal Riset Fisika Indonesia Vol 4 No 1 (2023): Desember 2023
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v4i1.3823

Abstract

Sintesis Teori A dan B sebagai Upaya Menjelaskan Inonsistensi Teori C dalam Proses Agitated Leaching Tailing Timah Sahroni, Muhammad; Indriawati, Anisa; Kurniawan, Widodo Budi
Jurnal Riset Fisika Indonesia Vol 3 No 2 (2023): Juni 2023
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v3i2.4125

Abstract

Inkonsistensi teori C merupakan anomali dimana teori C tidak berlaku dalam proses Agitated Leaching. Hal ini menuntut penjelasan sehingga banyak peneliti berspekulasi untuk menjelaskannya. Contohnya teori A yang kontra- intuitif dan teori B yang cenderung menentang teori A. Dalam penelitian ini telah dilakukan penyelidikan terhadap teori A dan B melalui pendekatan tidak-langsung dengan variabel terikat dari proses Agitated Leaching adalah Total Dissolved Solid (TDS), laju pengadukan sebagai variabel bebas dan variabel tetap adalah rasio solid-likuid (1:20 Gr/mL) dan lama pengadukan (10 menit). Proses pelaruran dilakukan pada keadaan STP dan membatasi proses hanya pada tahap pelarutan sampel menggunakan HNO3 5%. Sampel yang digunakan adalah pasir tailing timah. Hasil penelitian menunjukkan bahwa inkonsistensi terjadi pada laju pengadukan 1000 rpm. Teori A1 tidak dapat disimpulkan keberlakuannya dalam proses pelindian tailing timah. Teori A2 berlaku dalam proses pelindian tailing timah. Teori B berlaku dalam proses pelindian tailing timah.
Sintesis dan karakteristik nanopartikel CaO dari cangkang kerang darah (Anadara granosa) menggunakan metode kopresipitasi Hayati, Nur; Kurniawan, Widodo Budi; Puspita, Indah
Jurnal Riset Fisika Indonesia Vol 4 No 2 (2024): Juni 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v4i2.4378

Abstract

The lithium ion battery is a type of secondary battery. A good component to be used as the anode of a lithium ion battery is Li4Ti5O12 (LTO). LTO has a low conductivity value so doping is necessary. Doping particle size greatly affects the conductivity of LTO. The purpose of this doping was carried out to find out how the effect of CaO nanoparticle doping on the conductivity value of the LTO battery anode using the coprecipitation method by varying the molarity of NaOH, namely 1M, 3M and 7M. Based on the results of research on the influence of NaOH molarity, it produces different sizes of nanoparticles. The smallest nanoparticle size was obtained in the 3M sample variation, which was 175.0 nm. With a purity of CaO nanoparticles of 96.35%. While the conductivity value of the lithium ion battery doped with CaO nanoparticles with three variations of NaOH molarity, the optimum value was obtained in the 1M sample, which was 1.06 × 10-6 S/cm. This is because the 1M variation produces very low impurities compared to the 3M and 7M variations which have more impurities, this can affect the conductivity value.
Pengaruh Temperatur Aktivasi Karbon Aktif Terhadap Adsorpsi Logam Besi (Fe) Pada Limbah Batik Cair Batik Cual Pornawati, Heni; Aldila, Herman; Kurniawan, Widodo Budi
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.v5i1.4414

Abstract

Batik cual waste is a problem that is quite dangerous if it is disposed of directly into the environment because it contains various kinds of heavy metals such as iron Fe. To overcome the problem by utilizing coconut shell as activated carbon. In this study, the activated carbon used was the result of chemical activation and physical activation processes using temperatures of , and . Based on the SEM results to determine the sphericity value for a temperature of is worth 0.47 for is worth 0.56 and for is worth 0.52. The value of the pore diameter of activated carbon at temperatures of , and is 40.11µm, 81.84µm and 55.50µm. The BET results for activated carbon have a total pore volume for temperatures of , and with values of 0.182 cc/g, 0.2315 cc/g and 0.1605 cc/g. To decadarize cual batik wastewater through the adsorption process, temperatures of , and were used with contact times of 0, 40, 80, 120 and 160 minutes. The adsorption results were carried out by kinetic modeling using first-order, second-order and BMG kinetic models. Based on the model that is most suitable for the adsorption of liquid batik wastewater is BMG
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.
Kajian Variasi Massa Karbon Aktif dan Waktu Kontak terhadap Kinetika Adsorpsi Ion Logam Besi (Fe) pada Limbah Cair Batik Cual Aprilianti, Rena; Aldila, Herman; Kurniawan, Widodo Budi
Jurnal Riset Fisika Indonesia Vol 4 No 2 (2024): Juni 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v4i2.4416

Abstract

Cual batik liquid waste discharged directly into the environment can cause environmental problems due to containing various heavy metals such as iron metal (Fe). Adsorption method is one of the efforts to reduce heavy metal content in wastewater. This study utilises activated carbon from coconut shell waste to be used as a heavy metal adsorbent. The activated carbon used is the result of physical and chemical activation processes. Based on SEM results, activated carbon has pores with a pore diameter of 81.84 µm and a surface area of 0.2315 cc/g. The adsorption process was carried out using activated activated carbon with mass variations of 0.25 grams, 1.5 grams, and 1.75 grams. Meanwhile, the contact time variations used were 0, 40, 80, 120, and 160 minutes. The results showed that the most optimum mass variation of activated carbon to absorb Fe metal was 1.5 grams with a contact time of 80 minutes which left a residual Fe metal of 0.161 ppm.
Co-Authors Aisyah Deri Ayu Tungga Safitri Akbar, Jefri Amelia, Ririn Anisa Indriawati Aprilianti, Rena Arya Bagaskara Azrul Fahmi Deden Nurdandi Dewi Marina Dewi Marina Eka Febrianti Erman Taer Ernidawati, Ernidawati Fadillah Ramadhani Febriani, Yunita Fitri Afriani Herman Aldila Hoirotul Padilah Indah Puspita Indah Puspita, Indah Indriawati, Anisa Ipi Ipi Ipi, Ipi Jefri Akbar Junaidi Junaidi Livia Livia Lizia Miratsi Mahjur Mahjur Marhan Ebit Saputra Marina, Dewi Marlina Marlina Megawati Ayu Putri Megiyo Megiyo Megiyo, Megiyo Miratsi, Lizia Muhammad Sahroni Naila Fauza Ndruru, Sun Theo Constan Lotebulo Nur Hayati Nur Hayati Nurdandi, Deden Nurhadini Nurhadini Padilah, Hoirotul Pornawati, Heni Purwati Purwati Rena Aprilianti Rifqi Almusawi Rafsanjani Robby Gus Mahardika Safitri, Aisyah Deri Ayu Tungga Sahroni, Muhammad Shakila, Shania Siregar, Rahmat Nawi Siska Oktaviani Sitti Patimah Wati Syaflita, Dina Tri Kusmita Trisakti, Yunior Verry Andre Fabiani Wati, Sitti Patimah Widyaningrum, Yekti Yekti Widyaningrum Yekti Widyaningrum Yekti Widyaningrum Yuant Tiandho Yulinda yulinda Yunior Trisakti