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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 Triacetin dari Gliserol dan Asam Asetat dengan Katalis Zeolit Alam Termodifikasi Semuel Gideon Rommy Kosegeran; Sanusi Gugule; Johny Zeth Lombok
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.362

Abstract

Research has been conducted on the synthesis of triacetin from glycerol and acetate acid by the modify of natural zeolite catalyst with sulfuric acid 6N and followed by the characterization of the results of the reaction. Modified natural zeolite followed by an analysis of infrared spectrophotometry and x-ray diffraction (XRD). The characterization showed that modified natural zeolite has mordenite characteristics. The concentration of modified zeolite used is 3, 5, and 7% by weight of acetate acid as its reactant. Data processing used is one-way variation analysis and its characteristics seen in the physical-chemical test, followed by an analysis of gas chromatography-mass spectroscopic (GCMS) and infrared spectrophotometry. Based on the results of data processing, the concentrations of modified zeolite 3, 5, and 7% did not affect the yield of triacetin esterification reactions, the results respectively were 75,2881%, 71,9681%, and 69,0431%. The characterization results show that the physical-chemical properties of the reaction such as density, viscosity, and solubility are not following Standar Nasional Indonesia (SNI) of triacetin. The results of the GCMS analysis showed that there were two peaks with their respective fragments and the results of the infrared spectrophotometric analysis showed the presence of functional groups absorption for ester compounds.
Pembuatan dan Pengujian Pupuk Organik Cair (POC) dari Limbah Pasar dengan Menggunakan Bioaktivator EM4 Delinda Nirmala Afiyah; Emelia Uthari; Dewi Widyabudiningsih; Retno Dwi Jayanti
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.325

Abstract

Organic waste from market rubbish can be utilized as liquid organic fertilizer. In general, liquid organic fertilizers contain nutrients such as Nitrogen, Phosphorus, Potassium, and C-Organic that are needed by plants. The objective of this research are to manufacture liquid organic fertilizer through anaerobic fermentation from market rubbish with the addition of an EM4 bio activator and to determine the optimum time. The nutrients content were determined using the Kjeldahl method, UV-VIS Spectrophotometry, and Atomic Adsorption Spectroscopy. Liquid Organic Fertilizer that had the best quality among all types is from non-green vegetable. It has 0,45% of nitrogen, 0,08% of phosphorus, 0,34% of potassium, and 2,8% of C-organic respectively. The optimum time for POC fermentation occurred on the 14th day. The nutrient levels of all types of liquid organic ferilizer produced have not meet the minimum technical requirements of the quality of liquid organic fertilizers based on the Decree of the Minister of Agriculture of the Republic of Indonesia Number 261/Kpts/Sr.310/M/4/2019
Produksi Maltodekstrin Secara Enzimatik dengan Menggunakan Berbagai Massa Pati Biji Durian (Durio zibethinus Murr.) Ayu Satmah; Nurhaeni Nurhaeni; Jaya Hardi; Indriani Indriani
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.261

Abstract

Durian seeds (Durio zibethinus Murr.) are one part of the durian fruit which has a high carbohydrate content so that it is a potential source of maltodextrin. The production of maltodextrin from durian seed starch has been carried out using the α-amylase enzyme. This study aims to determine the mass of durian seed starch substrate required to produce maltodextrin with the best yield and value of Dextrose Equivalent (DE). Starch with masses of 5, 10, 15, 20, and 25 grams suspended in CaCl2 was hydrolyzed with α-amylase for 90 minutes. The results showed that the best mass of durian starch was 15 grams with a maltodextrin yield of 25.842% and a DE value of 11.493. Maltodextrin from durian seed starch has the potential to be developed because it has met the requirements of DE <20.
Studi Literatur Potensi Ekstrak Zat Warna Alam sebagai Indikator Asam Basa Alternatif Alifa Gunawan Yusuf; Naila Najiyah; Edi Wahyu Sri Mulyono; Fauzi Abdilah
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.338

Abstract

Currently, the use of acid-base indicators is limited to synthetic indicators, which are relatively expensive and not environmentally friendly. Therefore, an alternative acid-base indicator is needed from natural ingredients containing anthocyanins which are relatively cheaper, easy to obtain, and environmentally friendly so that they can replace the function of synthetic indicators. For this reason, it is necessary to research beforehand on the sources of raw materials that can be used as alternative acid-base indicators, how the method and what solvents are suitable, as well as the character of the anthocyanin dye extract obtained. In this research, a literature study related to the potential of natural dye extracts was carried out as an alternative acid-base indicator. From the results of the literature study, it can be seen that natural ingredients derived from groups of vegetables, flowers, fruits, and tubers have the potential as raw materials for making alternative acid-base indicators. The best method for extracting anthocyanin dyes from natural materials is the maceration method and the solvent that is suitable for use is ethanol-HCl solvent. The results of titration using natural dye extract indicators have similarities with the results of titrations using phenolphthalein and methyl orange indicators so that natural dye extract indicators can be used as alternative indicators in acid-base titrations.
Analisa Sifat Kemagnetan Polimer Poliethylen Glycol (PEG-4000)-coated Nanopartikel Magnetite Fe3O4 Menggunakan Vibrating Sample Magnetometer (VSM) Alfrie Musa Rampengan; Soenandar Milian Tompunu Tengker
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.376

Abstract

Iron oxide (Fe3O4) nanoparticles have been synthesized using coprecipitation method. Characterization of the magnetic properties of iron oxide (Fe3O4) nanoparticles using Transmission Electron Microscopy (TEM) shows a loop hysteresis curve on Fe3O4 magnetite nanoparticles with a value of Mr 7.7 emu/g at 0 kOe field, Ms 68.2 emu/g at an external field 14 ,61 kOe. A low Mr value or close to zero indicates that the Fe3O4 nanoparticle material is softmagnetic. Fe3O4 nanoparticles that had been modified with PEG-4000 polymer showed a Ms value of 55.7 emu/g in a 14 kOe field, an Hc coercivity field of about 60 Oe, and a Mr. 6.3 emu/g value in a 0 kOe field. The smaller the particle size, the more likely the material has a single magnetic domain. The smaller the sample particle size, the smaller the remanent magnetization value. The smaller the value of remanent magnetization, the residual magnetization that is still possessed by a material/sample when it is not affected by an external magnetic field is also greater.
Adsorpsi Logam Cu dengan Graphene Oksida Raihan Nurfauziah; Zulfa Rahmah Fadillah; Sinta Setyaningrum; Eko Andrijanto
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.326

Abstract

The development of industry around the river causes an increase in pollutants flowing in the river. One type of industrial pollutant is heavy metals. Heavy metals are toxic and toxic, so the presence of heavy metals in the aquatic environment can damage aquatic ecosystems. One of the ways to remove heavy metals is by using the isotherm adsorption method. Namely the process where the absorption of heavy metals on the surface of solids, namely the adsorbent. The adsorbent used is a graphene oxide sand composite which is made from carbon and has a high potential to remove heavy metal pollutants. The experiment was carried out by mixing the adsorbent with a solution of Cu2+ metal ions and adsorption was carried out using several parameters, namely variations in contact time and adsorption pH and measurements were made using a visible spectrophotometer. Optimum absorption occurs at the 25th minute contact time with an efficiency of 96.2% and at an adsorption pH of 8 with an efficiency of 99.4%. So it can be concluded that graphene oxide sand composite can be used to remove heavy metal pollutants.
Degradasi Zat Warna Rhodamin-B Menggunakan Green Fotokatalis Seng Ferit (ZnFe2O4) - Ekstrak Daun Pucuk Idat (Cratoxylum Glaucum) Sindi Atika Putri; Ike Nur Amanah; Jeni Susilawati; Verry Andre Fabiani
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.341

Abstract

Currently the development of the textile industry is not accompanied by proper textile waste treatment. Dyes from the textile industry are simply thrown away, causing dangerous environmental problems. One of the dyes that is often used in the textile and food industry is rhodamine B. An alternative for handling dye contamination is using photocatalyst technology. ZnFe2O4, nanoparticles have photocatalytic activity with UV light and visible light for the degradation of rhodamine B. This study aims to determine the characteristics of zinc ferrite (ZnFe2O4,) using a bioreductant of pucuk idat leaf extract (Cratoxylum glaucum) and determine the percent degradation of rhodamine B dye using zinc ferrite photocatalyst material. – leaf extract of pucuk idat (Cratoxylum glaucum). The method that will be used in this research is the experimental method. Broadly speaking, this research includes the extraction of pucuk idat leaves, synthesis of zinc ferrite-pucuk idat leaves and their characterization. To calculate the % degradation of rhodamine-B, first determine linear regression with variations in concentrations of 5 ppm, 10 ppm, 15 ppm, 20 ppm, and 25 ppm. The regression equation y= 0.0154x–0.0149 and the correlation coefficient (R2) with a linearity of 0.9857 were obtained. After characterization using XRD, FTIR, UV-Vis, and calculations, the highest percentage of rhodamine-B degradation was found in the sample RB + ZnFe2O4 + UV 3 hours, with a % degradation value of 16.42%.
Antioxidant Properties of Beringin (Ficus Benjamina Linn.) Fruit Anderson Arnold Aloanis; Marlina Karundeng
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.391

Abstract

Ficus Benjamina Linn. is a plant that can be used as a source of antioxidants. This study aims to determine antiradical activity and total antioxidant capacity of extracts and fractions of Ficus Benjamina Linn. fruit. Fruit of Ficus benjamina Linn. which has been dried is macerated with methanol. The maceration results were then evaporated to obtain a thick extract of methanol. The extract was then partitioned to obtain the n-hexane fraction, ethyl acetate fraction, and water fraction. Antiradical testing of extracts and fractions of Ficus benjamina Linn. fruit using 2,2-diphenyl-1-picrylhydrazyl and testing total antioxidant capacity using the phosphomolybene method. The results of the anti-radical and antioxidant analysis showed that the ethyl acetate fraction was the most active fraction. Ethyl acetate fraction showed IC50 value of 63.55 μg / mL and the total value of antioxidant capacity was 127.05 ± 1.62 mg / gram AAE.
Perbandingan Efektivitas Ampas Teh Hitam dan Ampas Teh Hijau sebagai Adsorben Ion Logam Cr (VI) Rahma Gurroh Muhajjalin; Inayah Agawijaya; Budi Santoso; Joko Suryadi
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.327

Abstract

Industrial waste contains various hazardous chemical compounds, such as heavy metals, one of which is chromium hexavalent ion, Cr (VI). Cr (VI) ion is carcinogenic and has toxic effects on humans. A study to treat Cr (VI) ion waste by adsorption using tea dregs has been carried out. Two types of tea dregs, black tea and green tea dregs are used as adsorbents, to compare their adsorption effectiveness. Adsorption effectiveness was determined using the visible-spectrophotometer. Parameters such as pH, adsorbent mass and concentration of Cr (VI) ions were optimized. Study determination of the adsorption isotherm model for each tea dregs included. The results showed that black tea dregs produced greater effectiveness than green tea dregs, with optimum adsorption conditions at pH 2, adsorbent mass of 0,8 grams and Cr (VI) ion concentration of 100 ppm with 99,50% removal efficiency. Meanwhile, green tea dregs produced the optimum adsorption conditions at pH 2, adsorbent mass of 0,4 grams and Cr (VI) ion concentration of 50 ppm with 87,49% removal efficiency. Langmuir adsorption isotherm model is fit for adsorption process by black tea dregs, meanwhile, green tea dregs fit with Freundlich and Langmuir isotherm model.
Determination of Vitamin C (Ascorbic Acid) Contents in Two Varieties of Melon Fruits (Cucumis melo L.) by Iodometric Titration Evana Evana; Maria Selviana Barek
Jurnal Kimia Fullerene Vol 6 No 2 (2021): 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.v6i2.342

Abstract

Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that is regarded as one of the safest and most effective nutrients. Vitamin C can be found in most fruits, and one of the fruits that contain vitamin C is melon fruit. The objective of the study is to determine vitamin C content in two varieties of melon fruits (Sky Rocket and Rock Melon) through the iodometric titration method. The method of determination was cheap, accurate, and can be used for routine analysis. The samples were collected from different markets in Yogyakarta. The results recorded the concentrations of ascorbic acids in Sky Rocket melon (30.84±0.3066 mg/100 g), and Rock Melon (33.77±0.2237 mg/100 g). The color of the fruit flesh affects the difference in vitamin C content between two varieties of melon fruit. The vitamin C content of orange-colored flesh (Rock Melon) is greater than that of greenish-yellow flesh (Sky Rocket).

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