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Fullerene Journal of Chemistry
Published by Universitas Negeri Manado
ISSN : 25981269     EISSN : 25985868     DOI : -
Core Subject : Science,
Chemistry
Fullerene Journal Of Chemistry is an chemistry indonesian journal presented by chemistry department, State University of Manado.
Arjuna Subject : -
Articles 160 Documents
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Sintesis dan Karakterisasi Nano ZnO Menggunakan Bioreduktor Ekstrak Daun Kopasanda (Chromolaena Odorata L.) Astuti Amin; Soenandar Tengker
Jurnal Kimia Fullerene Vol 7 No 1 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i1.511

Abstract

Nanopartikel seng merupakan material yang banyak digunakan dalam industri farmasi dan kosmetik, sebagai tabir surya, pemutih kulit, dan antiaging. Tujuan dari penelitian adalah untuk mensintesis nanopartikel seng menggunakan ekstrak etanol daun kopasanda sebagai stabilizer dengan metode reduksi kimia dan menentukan pengaruh kadar ekstrak etanol daun kopasanda terhadap kestabilan seng nanopartikel. Pada penelitian ini, bahan baku yang digunakan adalah daun kopasanda kemudian diproses dengan beberapa tahap yaitu sortasi basah, penucian,perajangan, pengeringan dan sortasi kering kemudian dimaserasi hingga didapatkan ekstrak kental . Rendamen ekstrak etanol daun kopasanda yang didapatkan adalah 23,79%. Ekstrak etanol daun kopasanda digunakan sebagai reduktor untuk mensintesis nanopartikel seng terhadap ZnO dalam larutan Zn(NO3)2.4H2O. Dari hasil pengukuran berdasarkan spektrofotometri UV-Vis diperoleh panjang gelombang maksimum 354,70 nm dan absorbansi sebesar 1,062 . Berdasarkan pengukuran dengan Particle Size Analyzer (PSA) nanoptartikel seng yang telah disintesis memiliki ukuran rata-rata partikel dalam sampel yaitu 213,6 nm.
ISOLASI DAN IDENTIFIKASI SENYAWA KIMIA DARI SPONS DI PERAIRAN LAUT SULAWESI Jenny Kumajas
Jurnal Kimia Fullerene Vol 7 No 2 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i2.458

Abstract

It has been conducted a research of the isolation and identification of chemical compound from the spons in Sulawesi sea waters. The purpose of this study was to isolate and identify chemical compound from spons Cliona celata in Sulawesi sea waters. Isolation was carried out by extraction with ethanol 70% and partitioning with ethyl acetate. The separation was carried out using thin layer chromatography (TLC) and column chromatography. Identification of structure of the compound was done by mass spectrophotometry gas chromatography technique. The isolation results obtained the ethyl acetate fraction eluate vial-123 (0.2 mg) was determined as a compound with the proposed 2-methyl-1,3,5-trioxane.
ZEOLITE ADSORPTION MEASUREMENT TEST RESULTS WITH VARIOUS DATES OF CURRUMIN AS ADSORTATE Gina Sajida
Jurnal Kimia Fullerene Vol 7 No 1 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i1.389

Abstract

The purpose of this study was to analyze and measure the intensity of light obtained through an LED flashlight emitted by a solution of curcumin and zeolite from the adsorption process. In addition, this study also aims to determine the appropriate isotherm model for this experiment. Variations in the dose of zeolite were taken to find out the big difference using the Lux Light Meter application. The method used is an experimental method, where the process that occurs is the light source from the sender stored in the cardboard will pass through a gap and also the bottle that has been filled with a solution of curcumin and zeolite. Then the light beam will be captured by the Lux Light Meter so that the value will be obtained. The results showed that zeolite carbon as an adsorbent was able to absorb turmeric or curcumin solution well. The equilibrium model used is Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Flory Huggins, Flower-Guggenheim, Hill-Deboer, Jovanovic, Harkin-Jura, and Halsey. The Langmuir, Freundlich, and Halsey isotherms show success in describing this adsorption process.
Kandungan Mineral “Nike” Ikan Payangkah (Ophiocara aporos ) dari Danau Tondano di Sulawesi Utara Sofia Krisen; Jeanne Tuerah
Jurnal Kimia Fullerene Vol 7 No 2 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i2.514

Abstract

Research has been conducted on the Mineral Content of “nike” Payangkah fish (O. aporos ) from Lake Tondano in North Sulawesi. The research objective was to determine the levels of Calcium, Magnesium, Manganese and Phosphorus. "nike" Payangkah fish (O. aporos) is taken directly from Lake Tondano fish farmers in Minahasa Regency, North Sulawesi. Sample preparation techniques include receiving, washing, selecting other than “nike” Payang fish and associated materials (excrement). All parts of the fish body are used as samples. Determination of Ca, Mn and Mg using (AAS) while P using (UV-VIS). The results show that the average P content (259.6 mg/100g); Ca (380.3 mg/100g); Mn (0.275 mg/100g) and Mg (21.49 mg/100g). When compared with the average mineral content for fish released by (FAO), these results indicate that "nike" Payangka fish (O. aporos) has good mineral content and can be used to increase mineral intake and protect against mineral deficiency diseases
Mechanical And Microstructural Assessment Of Synthetic Aluminosilicate Based Geopolymer Dental Material Andrie Harmaji; Oqy Diadara Putri; Bambang Sunendar
Jurnal Kimia Fullerene Vol 7 No 2 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i2.425

Abstract

Orthodontic treatment with fixed brackets was performed to transmit the pressure from the wire to the periodontal tissues to produce tooth movement. Ceramic material can be used not only to improve the aestheticness but also maintains good mechanical properties. This study aims to determine the mechanical properties and morphological of synthetic aluminosilicate based geopolymer for aesthetic orthodontic brackets applications made by synthesizing alumina (Al2O3), silica (SiO2), and magnesia (MgO) from sol-gel method. Geopolymer nanocomposite was made by activating synthetic precursor with alkali solutions consists of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) solution which has molarity variations of 8M (GP-8M) and 14M (GP-14M). The test results using an X-Ray Diffractometer (XRD) showed that the crystalline phase of (Mg,Si)Al2O4 spinel was successfully presented in the synthesized nanocomposite. The average hardness test results using the Vickers hardness tester for Geopolymer Nanocomposite with 8M and 14M alkali activator were 259.15 and 298.90 VHN, respectively. The results of the surface morphological characterization using Scanning Electron Microscope (SEM) of the samples showed the porosity of GP-14M was smaller than GP-8M, which explains the hardness test value difference. This shows Geopolymer is a potential material for orthodontic brackets manufacture.
Analisa Sifat Kimia Fisik Fluida dan Perkiraan Temperatur Reservoir Geotermal di Kabupaten Minahasa Selatan Jeferson Polii; Soenandar Milian Tompunu Tengker
Jurnal Kimia Fullerene Vol 7 No 2 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i2.459

Abstract

The presence of geothermal potential in an area is indicated by the presence of surface manifestations such as hot springs, fumaroles, mud pools, steaming ground, warm ground, geysers, silica deposits, and other manifestations. Chemical and physical analysis of these manifestations can explore the value of subsurface characteristics such as reservoir type, temperature and pressure of reservoir rock formations, as well as the chemical properties of the fluid. The South Minahasa Regency which is the target of the research has geothermal manifestations such as hot springs, steaming ground, silica deposits, and others. The study was conducted to analyze the characteristics of the fluid using geochemical methods and to estimate the temperature of the geothermal reservoir in the manifestation area in South Minahasa Regency. Geothermal manifestation in Pinaesaan village, South Minahasa Regency is a type of chloride fluid. This shows that the geothermal area is a high temperature zone and has a high permeability zone. Geothermal fluid in Pinaesaan village, South Minahasa Regency is in the area of ​​partial equilibrium waters, which indicates that the fluid is not in a state of equilibrium. This is because the fluid has been mixed with surface water. The hot springs in Pinaesaan village are estimated to be an outflow zone from the geothermal system in the area. The estimated temperature of the geothermal reservoir in Pinaesaan Village using a silica quartz geothermometer calculation is 191°C.
Effectiveness of Natural Zeolite Mass Variation for Turmeric Solution Adsorption Process Naufal Ahmad Daffa
Jurnal Kimia Fullerene Vol 7 No 1 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i1.390

Abstract

The purpose of this study was to observe the effectiveness of adsorption process in turmeric solution with different zeolite masses. The method used was to highlight the solution with flashlight which was then measured using a lux meter. To support this research, we used a solution of turmeric with zeolite with mass variations ranging from and tested 3 times with a lux meter. The results obtained indicated that there are differences in the adsorption rate of turmeric solution with zeolite mass from 1 to 2,5 grams. This difference occurred because of the difference in the mass of the zeolite between which adsorbed the turmeric solution. The lux meter showed different results in each test and the water clarity level was different for each added mass variation. In addition, the compatibility of the experimental results with the isotherm adsorption model shows the adsorption mechanism that occurred. Thus, the difference in mass has an impact on use on a larger scale as needed. This research is expected to provide new knowledge for the community about the benefits of zeolite for water purification process in daily life.
PEMBUATAN DAN KARAKTERISASI KARBON AKTIF DARI ARANG TEMPURUNG KELAPA DENGAN KOMBINASI AKTIVASI KIMIA DAN FISIKA Djefry Tani; Sonny Lumingkewas
Jurnal Kimia Fullerene Vol 7 No 2 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i2.515

Abstract

Kajian pembuatan karbon aktif dari tempurung kelapa telah dilakukan dengan perlakuan kimia dan fisika menggunakan aktivator HNO3 dan zat pengaktif gas CO2. Pembuatan karbon aktif dilakukan dengan pirolisis tempurung kelapa, kemudian diaktivasi secara kimia melalui proses perendaman dalam larutan HNO3 pada variasi konsentrasi 0,5; 1,0; 1,5; dan 2,0 M selama 12 jam. Karbon aktif dengan kualitas terbaik dihasilkan dari karbon aktif dengan konsentrasi HNO3 1,5 M pada temperatur 8000C . Hasil karakterisasi pada konsentrasi ini menghasilkan rendemen karbon aktif sebesar 73,41%%, kadar air 3,25%, kadar zat mudah menguap 19,20%, kadar abu 1,18%, karbon terikat 78,29% dan daya serap terhadap iodium sebesar 294,60 mg.g. Angka daya serap iodium ini memenuhi Standar Industri Indonesia no.0258-79
Aktivitas Antioksidan Ekstrak Etanol Batang, Daun Dan Akar Kopasanda (Chromolaena odorata L) dengan Metode ABTS (2,2’- azino - bis (3-etilbenzotiazolin -6- asam sulfonat) Astuti Amin; Soenandar Milian Tompunu Tengker; Wahyu Hendrarti
Jurnal Kimia Fullerene Vol 7 No 2 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i2.428

Abstract

Kopasanda (Chromolaena odorata L.) is a plant that contains flavonoid compounds that can act as antioxidants. This study aims to determine the antioxidant potential of the ethanol extract of the stems, leaves and roots of kopasanda by looking at the IC50 value. The stems, leaves and roots of Kopasanda were extracted by maceration using 70% ethanol as solvent. The results of the antioxidant activity test using the ABTS method (2.2'- azino - bis (3 - ethylbenzothiazoline - 6- sulfonic acid) showed a very strong antioxidant activity with an IC50 value of 11.5380 g/ml leaves, 31.161 g/ml stems and 36,860 roots. g/ml with positive control of quarcetin obtained IC50 value of 1.698 g/ml. Based on these results, it can be concluded that the stems, leaves and roots of the encounter have very strong antioxidant activity against ABTS free radicals (2,2'- azino - bis (3 - ethylbenzothiazoline). - 6- sulfonic acid).
Bibliometric Analysis of Hydrogels from Graphene Oxide Nanoparticles Using the VOSviewer Application Diah Indriati; Asep Bayu Dani Nandiyanto
Jurnal Kimia Fullerene Vol 7 No 2 (2022): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v7i2.461

Abstract

This study aims to examine the development of research on hydrogels from graphene oxide nanoparticles published in Google Scholar from 2013 to 2022 (September) through a bibliometric computational analysis approach using the Publish or Perish and VOSviewer applications. The title, publication type, abstract, keywords, and range of years are the parameters used to select the data taken in the Publish or Perish application. Two hundred twenty-seven articles that are relevant to the desired theme. From year to year, there is an increase in the number of scientific publications related to hydrogels from graphene oxide nanoparticles to a peak in 2021, with as many as 46 articles; the following year, it decreased slightly to 31 articles. Topics of discussion widely raised in nanoparticle hydrogel research include synthesis, characterization, doping, application, and industrial-scale production. From this data, it appears that there is still an opportunity to continue to do more research related to hydrogels from graphene oxide nanoparticles, assisted by the VOSviewer application, which can also help to find problem topics that can be used as research innovation materials on hydrogels from graph oxide nanoparticles in the future.

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