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All Journal VALENSI Jurnal Kimia Khatulistiwa Indonesian Journal of Chemistry Indonesian Journal of Pure and Applied Chemistry Jurnal Kartika Kimia GERVASI: Jurnal Pengabdian kepada Masyarakat Jurnal Rekayasa Proses

Intan Syahbanu

Jurusan Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Tanjungpura

Author-ID : 2078504

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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STUDI KINETIKA DAN ISOTERM ADSORPSI Fe(III) PADA BENTONIT TERAKTIVASI ASAM SULFAT Anis Shofiyani, Intan Syahbanu, Nurhayatun Nafsiyah,
Jurnal Kimia Khatulistiwa Vol 6, No 1 (2017): Jurnal Kimia Khatulistiwa
Publisher : Jurnal Kimia Khatulistiwa

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Fe(III) merupakan jenis logam berat pencemar yang sangat sering ditemukan di dalam air. Metode adsorpsi merupakan metode yang sering digunakan untuk menangani permasalahan tersebut. Pada penelitian ini dilakukan studi aktivasi bentonit menggunakan H2SO4. Bentonit teraktivasi H2SO4 digunakan untuk adsorpsi Fe(III) dalam larutan. Karakterisasi bentonit sebelum dan setelah aktivasi dilakukan untuk mengetahui sifat fisika dan kimia material. Karakterisasi material bentonit sebelum dan setelah aktivasi dilakukan menggunakan XRD (X-Ray Diffraction), SEM (Scanning Elektron Microscopy), FTIR (Fourier Transfrom Infra Red) spectroscopy dan GSA (Gas Sorption Analyzer). Hasil GSA menunjukkan bahwa terjadi peningkatan luas permukaan yang spesifik pada bentonit teraktivasi menjadi 150,139 m2/g dibandingkan bentonit tanpa aktivasi 76,983 m2/g. Hasil XRD menunjukkan bentonit yang digunakan termasuk jenis Na-Bentonit yang mengandung mineral utama montmorillonit. Hasil SEM menunjukkan pori pada bentonit teraktivasi mempunyai sifat dan ukuran pori yang lebih besar. Hasil FTIR menunjukkan bahwa gugus fungsional khas bentonit tetap dipertahankan setelah dilakukan aktivasi yaitu pada bilangan gelombang 3448 (vibrasi regangan O-H), 1041 (vibrasi regangan Si-O), 910 (vibrasi deformasi Al-O-Al), 370 (vibrasi regangan Al-O), dan 524 (vibrasi deformasi Si-O-Al). Studi adsorpsi dipelajari menggunakan paramater waktu kontak dan konsentrasi pada sistem batch. Hasil penelitian menunjukkan bahwa kinetika adsorpsi Fe(III) mengikuti model kinetika pseudo orde dua dengan k2=0,139 L/mg.min. Isoterm adsorpsi mengikuti model isoterm Langmuir dengan kapasitas adsorpsi sebesar 18,518 mg/g. Kata Kunci : adsorpsi, bentonit, Fe(III), kinetika, kapasitas adsorpsi

Synthesis of Graphene Oxide/Polypyrrole (GO/PPy) from Used Batteries as Electrodes in Supercapacitor Cells Muhammad Iqbal Qeis; Ferdian Rizki Amanda; Desi Listiani; Anthoni B Aritonang; Intan Syahbanu
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 5, No. 2, November 2019
Publisher : Syarif Hidayatullah State Islamic University

Fabrication with graphite-modified GO/PPy composites have been studied from used batteries using the Hummers method. This research was performance in four steps: graphite powder preparation, GO synthesis, GO/PPy composite synthesis, and supercapacitor cell manufacturing. The results of the study were characterized using X-Ray Diffraction (XRD) to see the character of the diffraction patterns formed by carbon batteries used before and after calcination and Fourier Transform Infra-Red (FTIR) to identify compound functional groups and conduct initial tests in the form of voltage, capacitance and life cycle by measuring charge and discharge times. The graphite preparation stage is carried out by the calcination method at 900°C to produce graphite with an angle of 2θ which is 26° with reflection from (d002). FTIR data showed that GO/PPy composites showed a successful combination of characteristics similar to pure polypyrrole and GO which included a broad absorption band located at 3500-2300 cm-1 which was estimated to be stretching the amine from polypyrrole and O-H group in the GO layer and the emergence of peaks new in the absorption band with a wave number 909 cm-1 is the CN vibration of the polymerized pyrrole. Meanwhile, based on the LCR meter measurement results in the best supercapacitor cells in the sampel GO/PPy ratio (3:10) with voltage value of 74.1 mV; a capacitance value of 15.14 µF and the best charge and discharge times.

KINETIKA DEGRADASI SELULOSA ASETAT DARI SABUT PINANG Intan Syahbanu; Annisa Anugraini; Husna Amalya Melati
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 1 (2018)
Publisher : Tanjungpura University

Cellulose Acetate is a material with wide range in applications. Cellulose acetate may obtain from natural resources, such as areca fiber. Polymers should have uniform molecular weight for the applications and could be modify by ultrasonic waves. Ultrasonic treatment on polymer entangled with polymer degradation. In this research, degradation kinetics of cellulose acetate in acetone had been studied. Analysis was performed by determination of intrinsic viscosity in polymer solution system. Intrinsic viscosity was successfully obtained by fitting data using Huggins equation, indicate molecular interaction in polymer solution should not be neglected. Increasing in sonication time reducing the intrinsic viscosities as well as molecular size in solutions. Degradation rate constant and reaction order were obtained 5,975x10-3(g.mL-1)0,1.min-1 and 1,0616, respectively. Kinetics model was successful to determine the degradation rates of cellulose acetate on acetone by correlation coefficient (R2) at 0,966.

SINTESIS DAN KARAKTERISASI GEOPOLIMER BERBAHAN DASAR KAOLIN CAPKALA DENGAN VARIASI RASIO MOL SiO2/Al2O3 Yatim Mustakim; Nurlina Nurlina; Intan Syahbanu
Indonesian Journal of Pure and Applied Chemistry Vol 2, No 2 (2019)
Publisher : Tanjungpura University

One of the potential raw materials for the preparation of geopolymers is kaolin. In the present report, the used activated kaolin is from Capkala Village in West Borneo. This paper presents an experimental study on the influence of different SiO2/Al2O3 molar ratios on the compressive strength and microstructural characteristics of the Capkala kaolin-based geopolymer. The used Capkala kaolin was a product of the calcination of the source material at 750ºC 2 h. The alkaline activator solutions that were used to activate the activated capkala kaolin precursor were prepared by mixing NaOH solution with Na2SiO3 solution. The activator solution was allowed to equilibrate for a minimum of 24 h at a room temperature before use. The geopolymer was prepared by hand mixing of the Capkala kaolin and the activator solution. Experiments conducted with SiO2/Al2O3 molar ratios of 3.8; 3.9; 4.0; 4.1 and 4.2 for all mixing. The resulting pastes are cast in cylinder molds of 2.3 × 4.6 cm. The pastes hardened 24 h in the forms, at room temperature for 24 h. The geopolymer was dried at 60ºC 2 h. The geopolymer was tested for compressive strength and sample pieces were taken from ones with the highest strength for XRD and SEM. Based on the test was obtained that geopolymer with 3.9 SiO2/Al2O3 ratios has the highest compressive strength that is 2.820 Mpa. The XRD analysis showed the peak at 2θ(º) 26,69o, 20,92o dan 19,77 o. The spectra FTIR of geopolymer showed the absorption at 3289.96 cm-1; 1647.67 cm-1 and 955.65 cm-1. Moreover, there are functional groups absorption for geopolymer such Al-OH stretch vibration (near 900 cm-1), stretch vibration of Si-O and Al-O (600-700 cm-1), Si-O-Al bend vibration (near 500 cm-1). The morphology of the capkala kaolin based geopolymer with SEM has succeeded in changing the kaolin structures in the form of regular slabs to be more irregular due to heating with a temperature of 750ºC.

EKSTRAKSI DAN PENENTUAN GUGUS FUNGSI ASAM HUMAT DARI PUPUK KOTORAN SAPI Nurlina Nurlina; Intan Syahbanu; Mirna Tersiana Tamnasi; Chyntia Nabela; Maria Desi Furnata
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 1 (2018)
Publisher : Tanjungpura University

Cow manure fertilizer was used as raw material for the extraction of humic acid in this research. The aim of this research were extraction of humic acid from cow manure fertilizer, characterization of functional groups based on FTIR spectra, and determination of humic acid functional groups. Humic acid extraction from cow manure used 0.050 M; 0.100 M; 0.250 M dan 0.500 M KOH solution. A cow manure fertilizer were shaken with KOH solution for 1; 2; 4 and 6 h. The quantitative determination of oxygen-containing functional groups of humic acid was conducted by titrimetri. The FTIR spectrum showed the presence of –OH group and N-H stretching (bands 3361.46 cm-1); C-H aliphatic for CH2, CH3 (2946.52 cm-1 and 1442.24 cm-1); C=C aromatic components (1626.48 cm-1); COO- symmetric stretching (1521.71 cm-1); C-O stretching from –COOH (1229.74 cm-1). Total acidity value was 500 cmole.kg-1 (Baryta Absorption Method); carboxyl groups content was 250 cmole.kg-1 (Ca-Acetate Method); and phenol (OH) concentration was 250 cmole.kg-1. It can be concluded that humic acid successfully extracted from cow manure fertilizer using 0.250 KOH solution as extractant for 2 h, which has yield of 4.486% humic acid.

ANALISIS UKURAN PARTIKEL SILIKA HASIL EKSTRAKSI DARI BATU PADAS ASAL KABUPATEN KETAPANG KALIMANTAN BARAT Risya Sasri; Nurlina Nurlina; Lia Destiarti; Intan Syahbanu
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 1 (2018)
Publisher : Tanjungpura University

Analysis of particle size of silica was extracted from rocks from Ketapang Regency, West Kalimantan based on characterization using scanning electron microscope (SEM) have been carried out. The analysis was performed to determine the particle size change in extraction silica without and with activation using acid solution. SEM image processing was performed on a 10 μm scale at 350x magnification through the image-J software to determine the particle size distribution. The results of the analysis showed that the area and diameter of the silica particle extracted from rocks were 3,935 μm2 and 3,147 μm (without activation) and 4,28 μm2 and 3,267 μm (activated) respectively.

EKSTRAKSI MINYAK KELAPA MURNI DENGAN METODE PENGADUKAN DAN COLD PRESSED Deni Pranata; Puji Ardiningsih; Winda Rahmalia; Nurlina Nurlina; Intan Syahbanu
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 2 (2020)
Publisher : Tanjungpura University

Virgin coconut oil (VCO) was prepared by stirring and cold-pressed methods. This research aimed to study the effectiveness of both methods on VCO extraction. The first method was carried out by high-speed stirring to broke the coconut milk emulsion, and the second method was using the freezing and thawing technique. The physical appearance of VCO from both ways was clear, with a specific odor and taste of fresh coconut oil. The density of the VCO obtained by the stirring and cold-pressed method was 936 kg/m3 and 933 kg/m3, respectively. Physicochemical characterization shows that the cold-pressed process produces better properties of VCO.

PENGARUH VARIASI KOMPOSISI SELULOSA JERAMI PADI DAN LIMBAH BOTOL PLASTIK POLIETILEN TEREFTALAT (PET) TERHADAP KARAKTERISTIK BIODEGRADABLE PLASTIC Hanna Sjafarina; Intan Syahbanu; Nurlina Nurlina
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 3 (2020)
Publisher : Tanjungpura University

Research on the effect of variations in the composition of rice straw cellulose on the characteristics of biodegradable PET-Cellulose plastic. The purpose of this study is to explain the effect of the composition of rice straw cellulose and PET on the characteristics of biodegradable plastic made from composite of rice straw cellulose and PET. This research was conducted in several stages, the isolation of cellulose from rice straw, recycling PET from mineral water bottle, mixing cellulose and PET, then testing the characteristics, the DTA-TGA thermal characteristic test, and degradation test with the soil burial test method. . In the thermal characteristics test there was a decrease in weight in samples with composition PET: cellulose 90:10; 60:40; and 50:50 each with 0.719; 0.710; 0.581 mg in the temperature range 38.30-68.32 ° C, 40.72-68.17 ° C, 41.45-80.40 ° C, while in the samples 80:20 and 70:30 there was no decrease in weight the temperature. In the sample 90:10; 80:20; 70:30; 60:40 and 50; 50 there is a decrease in weight each of 4,045; 3,909; 3,464; 2,760 and 3,205 mg at temperatures 328, 16-430.65 ° C, 362.05-442.15 ° C, 349.96-439.82 ° C, 388.29-446.70 ° C, and 325.39-420.79 ° C. The degradation test using soil burial test method obtained percent weight loss in samples with PET composition: 70:30 cellulose which was 38.24%.

PENGARUH JENIS MINYAK TERHADAP SIFAT FISIK D AN KIMIA BATH BOMB (THE EFFECT OF THE TYPE OIL ON THE PHYSICAL AND CHEMICAL PROPERTIES OF BATH BOMB) Annisa Bella Maharani; Lia Destiarti; Nurlina Nurlina; Intan Syahbanu; Winda Rahmalia
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 1 (2020)
Publisher : Tanjungpura University

Bath bombs were produced with ten different types of oil to determine the effect of the oil used on their physical and chemical properties. Bath bombs were prepared by mixing the dry ingredients first (citron, cornstarch, baking soda) and stirring until all the ingredients were well blended. Then, mixed the wet ingredients (water, oil, perfume ore, food coloring) into the beaker. After that, the wet ingredients were poured gradually into the dry dough, and this step was done until all the wet ingredients run out, and the texture of the bath bomb dough was slightly moist so that it can be put in the mold. Finally, the bath bomb is printed and tested in a laboratory. The result showed that the difference in essential oils used in the manufacture of bath bombs does not affect the pH of the bath bomb but affects the stability of the resulting foam. The acceptability test results showed that the resulting bath bomb provided a sensation of freshness and relaxation and did not cause allergies. Based on the SWOT analysis results, these bath bombs can advance and develop by implementing a vertical integration strategy

Ultrafiltration Membrane Of Polysulfone/ TiO2 (Psf/TiO2) For Diesel Fuel Polluted Water Filtration Alfian Yulia Rahmat; Intan Syahbanu; Rudiyansyah Rudiyansyah
Jurnal Kartika Kimia Vol 3 No 1 (2020): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Membrane is an important part in ultrafiltration process to split up water from its impurities. Commonly membranes are made of polymer which has adequate resistance in filtration process. One type of them is polysulfone. Good physical endurance is its supremacy as material in the manufacture of membranes. Nevertheless, the hydrophobic nature of polysulfone makes membrane performance less efficient. Blending process using TiO2 can lessen the hydrophobicity of polysulfone, but still maintain membrane primacy. The blending process was carried out by the phase inversion method. Membrane physical structure was observed by SEM and XRD analysis. The pore arrangement on both membranes looks asymmetric. However, the PSF/TiO2 membrane has more systematic pore disposition. Good crystallinity was noticed on PSF/TiO2 membranes with crystal size of 27 nm whereas pure polysulfone looks more amorphous. Membrane performance can be discerned by considering various parameters after performance tests by using diesel fuel emulsion in water. Some of these parameters include flux, rejection, and total fouling after the emulsion filtration process. PSF/ TiO2 membrane flux values showed better results at 21.05 L/m2 hour. Rejection of the PSF/TiO2membrane looked better as well, spesifically 70,857%. Total fouling showed preferable result on the PSF/TiO2 membrane, which was 42.34%. The insertion of TiO2 by a composition of 10% of the total PSF used can improve membrane performance and morphology. Keywords: Filtration, Flux, Membrane, polysulfone, TiO2

Co-Authors Adhitiyawarman, Adhitiyawarman Adhitya Adhitya Afghani Jayuska Alfian Yulia Rahmat Annisa Anugraini Annisa Bella Maharani Anthoni B. Aritonang Chyntia Nabela Deni Pranata Desi Listiani Eka Intan Kumala Putri Ferdian Rizki Amanda Gusrizal Gusrizal Hanna Sjafarina Harlia Harlia Husna Amalya Melati Imelda Hotmarisi Silalahi Kiki Aristi Lalak Tarbiyatun Nasyin Maleiva Lia Destiarti Maria Desi Furnata Mirna Tersiana Tamnasi Muhamad Agus Wibowo Nurlina, Nurlina Patrinela Hilda Puji Ardiningsih Puji Ardiningsih Risya Sasri Rudiyansyah Rudiyansyah Syahrul Khairi Veren Fransiska Winda Rahmalia Winda Rahmalia Winda Rahmalia Yatim Mustakim Zefania Riri

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