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All Journal Al-Kimia Chemistry Indonesian Journal of Chemical Research Analit: Analytical And Environmental Chemistry
Syarifah Rabiatul Adawiah, Syarifah Rabiatul
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Biochemistry, Genetics & Molecular Biology Chemistry Energy Engineering Environmental Science

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Characterization of Hydroxyapatite of Chicken Eggshells Composite with Gelatin as Methylene Blue Absorbent Nurfadillah; Ramadani, Kurnia; Firnanelty; Chadijah, Sitti; Aisyah, Aisyah; Ilyas, Asriani; Nur, Arfiani; Adawiah, Syarifah Rabiatul; Andriani, Titik
Al-Kimia Vol 11 No 2 (2023): DESEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i2.40781

Abstract

Chicken egg shells contain an inorganic element (CaCO3) which has potency to be a source of calcium hydroxide (Ca(OH)2) which is then reacted with diammonium hydrogen phosphate ((NH4)2HPO4) as a phosphate precursor for hydroxyapatite synthesis. This study aims to determine the characterization of hydroxyapatite from eggshells and determine the absorbability of hydroxyapatite-gelatin composites against methylene blue. Synthesis of hydroxyapatite used precipitation method. The calcination results obtained calcium hydroxide (Ca(OH)2) content in the shell of 68.3%. Analysis of hydroxyapatite with Fourier Tranform Infra-Red (FT-IR) there was a wavenumber of 3434 cm-1 perform hydroxyl groups (-OH-), 1421 cm-1 carbonate groups (-CO3-2) and 1035 cm-1, 604 cm-1, 471 cm-1 phosphate groups (-PO4-2), and analysis by x-ray diffraction revealed that pure hydroxyapatite crystals had formed at an angle of 2Ɵ = 34,08 with crystallinity of 100%. The peaks that appear on the XRD diffractogram are adjusted to the Joint Committee on Power Diffraction Standards (JCPDS) No. 09-0432. The synthesis of HAp-gelatin composites obtained typical groups such as, amine groups from gelatin and phosphate groups and carbonates from Hap. The results of methylene blue absorption using hydroxyapatite-gelatin composites have obtained optimum conditions at a ratio of 2: 4 for 240 minutes with an efficiency of 63%. Based on these data, it reveals that the longer the time given, the greater the methylene blue absorbed
Studi Adsorpsi-Desorpsi Anion Fosfat Pada Bentonit Termodifikasi CTAB Adawiah, Syarifah Rabiatul; Sutarno, Sutarno; Suyanta, Suyanta
Indonesian Journal of Chemical Research Vol 8 No 2 (2020): Edition for September
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2020.8-sra

Abstract

Adsorption-desorption studies of phosphate on CTAB modified bentonite have been investigated. The results were characterized by FT-IR spectrometer to determine the functional groups in bentonite and X-ray diffractometer to determine the type of minerals in the bentonite. Adsorption was conducted by shaking 10 mg adsorbent in 5 mL adsorbate solution at the optimum condition of pH, contact time, and concentration. Furthermore, desorption studies were conducted on 5 mL medium of both water and citric acid 0.33 M and using 6.5 mg of adsorbent which has adsorbed phosphate. The results showed that the bentonite has been successfully modified with CTAB. The adsorption capacity of phosphate is 0.028 mmol g-1. Desorption studies showed that the solubility percentage of phosphate anion in citric acid was 0.33 M (73.33%) greater than in water (57.81%) which is a requirement for the use of slow-release fertilizers (SRF).
Analysis of the Heavy Metal Levels (Cd, Fe, Hg and Pb) at Losari Beach Tourism Reclamation of Makassar Firnanelty, Firnanelty; Chadijah, Sitti; Adawiah, Syarifah Rabiatul; Firdaus, Firdaus; Nugraha, Muh. Imam Dyan Nugraha Imam Dyan
Indonesian Journal of Chemical Research Vol 10 No 2 (2022): Edition for September 2022
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2022.10-fir

Abstract

The process of stockpiling reclamation areas and disposing of waste streams can pollute the environment and cause the attendance of dangerous heavy metals. In this research was conducted to determine heavy metals Cd, Fe, Hg, and Pb levels in water and sediment on Losari beach. The method used was an atomic absorption spectrophotometer. The result showed that the levels of Cd and Fe in the water for the north point were 0.0278 and 0.0432 mg/L, the south point was 0.0031 and 0.0674 mg/L, the point around the platform showed 0.0028 and 0.0534 mg/L and the levels of sediment were 0.0010 and 31.2417 mg/L. The levels of Hg and Pb in water were 0.0235 and 0.0390 mg/L (north point) 0.0105 and 0.0420 mg/L (south point) 0.0027 and 0.0460 mg/L (around the platform), sediments were 0.0027 and 0.071 mg/L. The result concluded that the concentration of Cd had crossed the threshold only at the north point namely 0.01 mg/L, while the concentration of Fe that crossed the threshold was only in sediment namely 20 mg/L. The level of Hg and Pb pollution in the water and sediment of Losari beach tourism is polluted because it exceeds quality standards.
ANALISIS KUALITAS AIR TANAH DI KAWASAN PESISIR DESA LABUHAN KERTASARI, SUMBAWA BARAT Ulfa, Andi Maria; Hilmi, Amirul; Adawiah, Syarifah Rabiatul
Analit : Analytical and Environmental Chemistry Vol. 6, No. 01 April (2021) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v6i1.2021.p22-32

Abstract

Tujuan penelitian ini yaitu untuk menganalisis kualitas air tanah di kawasan pesisir Desa Labuhan Kertasari, Kabupaten Sumbawa Barat. Metode penelItian yang digunakan yaitu observasi langsung ke lapangan, dan titik sampel dilakukan dengan metode purposive sampling, yaitu sebanyak 40 titik. Analisis kualitas air dilakukan dengan mengukur nilai parameter fisika dan kimia yang meliputi pH, TDS, dan DO. Pengukuruan parameter-parameter penelitian dilakukan secara insitu. Hasil penelitian menunjukkan kualitas air di Desa Labuhan Kertasari menunjukkan terdapat 7,5% yang termasuk kelas I, sesuai dengan baku mutu air yang ditetapkan, yaitu pada SW25, SW26 dan SW28 dengan nilai TDS berturut-turut: 893 mg/L; 836 mg/L; 904 mg/L, nilai pH berturut-turut: 7,36; 7,25; 7,76 dan nilai DO berturut-turut: 7,2; 6,9; 7,4. Air pada titik sampel S26 memiliki kualitas yang paling baik dari 40 titik sampel.http://dx.doi.org/10.23960/aec.v6.i1.2021.p22-32 
Co-Authors Aisyah Aisyah Arfiani Nur Asriani Ilyas Firdaus Firdaus Firnanelty, Firnanelty Hilmi, Amirul Nugraha, Muh. Imam Dyan Nugraha Imam Dyan Nurfadillah Ramadani, Kurnia Sitti Chadijah Sutarno Sutarno Suyanta Suyanta Titik Andriani, Titik Ulfa, Andi Maria