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All Journal Biopropal Industri ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Pure and Applied Chemistry Jurnal Akademika Kimia Jurnal Akademika Kimia (Journal of Environmental Sustainability Management)

Nurlina, Nurlina

Jurusan Kimia, FMIPA, Universitas Tanjungpura, Pontianak, Indonesia

Author-ID : 1793534

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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ISOTERM ADSORPSI KROMIUM(III) OLEH BIOMASSA Sargassum sp. (Isoterm Adsorption of Cromium(III) by Non-Living Sargassum sp.) Nelly Wahyuni; Imelda Hotmarisi Silalahi; Nurlina Nurlina; Yossy Yossy
Biopropal Industri Vol 11, No 2 (2020)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36974/jbi.v11i2.6030

Chromium (Cr) is one of the heavy metals with high toxicities and can be dangerous if it is thrown up directly into waters. One of the techniques to reduce heavy metal content with inexpensive, simple, effective and efficient is through adsorption process utilizing brown seaweed (algae) Sargassum sp. as adsorbent. The purpose of this study is to describe the isotherm adsorption and adsorption kinetics model of Sargassum sp. to Cr(III) by Sargassum sp. with various treatments. Adsorption treatments carried out in this research include treatment variations of the adsorbent Sargassum sp. without protonation, Sargassum sp. protonated with H2SO4 0.1 M and Sargassum sp. protonated with H2SO40.2 M; variations of contact time are 0.5, 1, 3, 6 and 12 hours; and variations of initial concentration of ion Cr(III) 50 mg/L, 100 mg/L, 300 mg/L, and 700 mg/L. The result showed that the adsorption model fitted with the Freundlich isotherm equation with coefficient correlation (R2) > 0.9. The adsorption capacity of protonated Sargassum sp. with sulfuric acid 0.1 M was 3.464 x 10-3 mol/g. It is higher than Sargassum sp. without protonation and Sargassum sp. protonated with sulfuric acid 0.2 M. The application of the Langmuir-Hinshelwood kinetics model yielded the constant of adsorption rate for each adsorbent were 1.1 x 10-3 min-1, 2.0 x 10-4 min-1 and 7.0 x 10-4 min-1, respectively.Keywords: adsorption, chromium, isoterm, kinetics, Sargassum sp.ABSTRAKKromium (Cr) merupakan salah satu jenis logam berat yang memiliki tingkat toksisitas yang sangat tinggi dan dapat menimbulkan bahaya apabila dibuang secara langsung ke perairan. Salah satu teknik untuk mengurangi kadar logam berat dengan proses yang relatif lebih murah, sederhana dan memberikan efektifitas serta efisiensi yang relatif tinggi adalah melalui proses adsorpsi dengan memanfaatkan rumput laut (alga cokelat Sargassum sp.) sebagai adsorben. Tujuan penelitian ini adalah untuk menjelaskan model isotherm adsorpsi dan kinetika adsorpsi ion Cr(III) oleh Sargassum sp. dengan berbagai variasi perlakuan. Perlakuan adsorpsi yang dilakukan pada penelitian ini antara lain variasi perlakuan terhadap adsorben yang digunakan yaitu Sargassum sp. tanpa protonasi ,Sargassum sp. terprotonasi H2SO4 0,1 M dan Sargassum sp. terprotonasi H2SO4 0,2 M; variasi waktu kontak adsorpsi yaitu 0,5; 1, 3, 6 dan 12 jam, dan variasi konsentrasi awal ion Cr(III) yaitu 50 mg/L, 100mg/L, 300 mg/L, 500 mg/L dan 700 mg/L. Hasil penelitian menunjukan bahwa adsorpsi mengikuti persamaan isoterm Freundlich dengan nilai koefisien korelasi (R2)> 0,9. Kapasitas adsorpsi ion Cr(III) oleh Sargassum sp. terprotonasi asam sulfat 0,1 M sebesar 3,464 x 10-3 mol/g. Nilai tersebut lebih tinggi dibandingkan kapasitas adsorpsi ion Cr(III) oleh adsorben Sargassum sp. tanpa protonasi dan Sargassum sp. terprotonasi asam sulfat 0,2 M. Penerapan model kinetika Langmuir-Hinshelwood menghasilkan harga konstanta kinetika adsorpsi Cr(III) dari ketiga jenis adsorben berturut-turut sebesar 1,1 x 10-3 menit -1, 2,0 x 10-4 menit -1 dan 7,0 x 10-4 menit -1.Kata kunci: adsorpsi, kinetika, kromium, isoterm, Sargassum sp.

Cytotoxic Compound from Ethyl Acetate Fraction of Brucea javanica (L.) Merr Fruit Against HeLa Cell Line Nurlina Nurlina; Ari Widiyantoro
ALCHEMY Jurnal Penelitian Kimia Vol 11, No 1 (2015): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.11.1.108.58-71

The pure compound relatively (85 mg) was isolated from 4.5 kg Brucea javanica (L.) Merr. fruits sample. It was obtained from ethyl acetate fraction as a red-brownish amorphous solid of melting point 202-206 oC. Phytochemical screening of isolate showed positive result of terpenoid group. Based on analysis by UV, IR,1H-NMR and 13C-NMR spectroscopy and by comparison with known related compounds, indicated that isolate is quassinoid compound named Picras 3- en- 21- oat acid, 15-(acetyloxy)-13,20- epoxy-3-(ß-D- glucopyranosyloxy)-11, 12- dihydroxy -2, 16- dioxo -, methyl ester. Cytotoxic test using MTT assay method showed that compound have IC50 9,7 µg/mL.

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

SINTESIS DAN STUDI STABILITAS NANOPARTIKEL PERAK TERTUDUNG ASAM SALISILAT Rizky Noviani Ridwan; Gusrizal Gusrizal; Nurlina Nurlina; Sri Juari Santosa
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 3 (2018)
Publisher : Tanjungpura University

Silver nanoparticles capped with salicylic acid have been synthesized by reduction of silver nitrate with salicylic acid without additional capping agent. In the formation of silver nanoparticles, the solution of silver nitrate was first mixed with the pH 11 salicylic acid solutions at a mole ratio of 1:40. The mixture was heated for 45 minutes in a boiling water bath. The formation of silver nanoparticles was indicated by the appearance of yellow color and monitored using UV-Vis spectrophotometer. The maximum peak of resulted silver nanoparticles appeared in the range of 410-420 nm with the average size of particles was 66±28 nm. Stability test over a period of 16 weeks showed that silver nanoparticles capped with salicylic acid were stable. The results of stability test show that salicylic acid simultaneously act as reducing as well as capping agent in the formation of silver nanoparticles.

ADSORPTION OF Pb(II) BY POLYANILINE/SILICA GEL COMPOSITE: KINETICS AND ISOTHERM STUDIES Mas Inda Putrinesia; Nurlina Nurlina; Winda Rahmalia
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 3 (2018)
Publisher : Tanjungpura University

Research on the study of kinetics and isotherm adsorption of Pb(II) by polyaniline/silica gel (PANI/SiO2) composite from glass waste has successfully been done. The polymerization of silica gel was prepared by sol-gel process. Meanwhile, PANI/SiO2 composite was prepared using sulfuric acid (H2SO4) as its dopants and hydrogen peroxide (H2O2) for oxidation process. Composition of oxide compound in PANI/SiO2 composite was analyzed by X-Ray Fluorosence (XRF) and Gas Sorption Analyzer (GSA). Adsorption of Pb(II) was carried out by contacting PANI/SiO2 with Pb(NO3)2 solution for 20, 40, 60 and 80 minutes, with concentrations of 150, 200, 250, 300, 350 and 400 mg/L. The optimum contact time was reached at 40 minutes. This adsorption followed pseudo-second order model with R2= 0.996. The first optimum adsorption capacity was reached in the concentration of 250 mg/L. Isotherm adsorption followed Langmuir models with R2= 0.954 (monolayer capacity= 51.02 mg/g).

Co-Authors Annisa Bella Maharani Ari Widiyantoro Chyntia Nabela Deni Pranata Endah Sayekti Gusrizal Gusrizal Hanna Sjafarina Hargiani, Fransisca Xaveria Imelda Hotmarisi Silalahi Intan Syahbanu Irma D. Oktavianta Lia Destiarti Maria Desi Furnata Mas Inda Putrinesia Masyita Masyita Mirna Tersiana Tamnasi Nelly Wahyuni Puji Ardiningsih R RE Moelyani Risya Sasri Rizky Noviani Ridwan Sri Juari Santosa T A Zaharah Winda Rahmalia Yatim Mustakim Yossy Yossy

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