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All Journal Molluca Journal of Chemistry Education (MJoCE)
Sunarti Sunarti
Departement of Chemistry-FKIP, Pattimura University Ambon
Chemistry Education

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KEMAMPUAN EKSTRAK BIJI KELOR SEBAGAI INHIBITOR KOROSI BESI DALAM LARUTAN HCl Sunarti Sunarti; Victor Kayadoe; Prima D Rahawarin
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp72-80

Abstract

ABSTRACT There was already an experiment to test the capability of moringa seed extract in inhibiting corrosion of iron using the method of weight reduction. Inhibit power is obtained based on the inhibition efficiency of moringa seed extract concentration variation of 1%, 2%, 3%, and 4% as well as temperature variations, namely 35, 40, 45, and 50 based on the results of research obtained the data and the rate of corrosion inhibition efficiency the concentration variation in a row l: 82.92%; 86.87%; 91.02%; 93.74% and 0.4342; 0.3032; 0.2235; 0.1710.In the temperature variation data obtained and the rate of corrosion inhibition efficiency in a row
PREPARASI DAN KARAKTERISASI ARANG DARI AMPAS SAGU SEBAGAI ADSORBEN DALAM MENURUNKAN KADAR COD DAN BOD LIMBAH CAIR PABRIK TAHU Victor Kayadoe; Sunarti Sunarti; Yeslia Utubira; Nova Kayadoe
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp81-88

Abstract

The preparation and characterization of charcoal from sago pulp as an adsorbent in reducing content of COD and BOD of tofu factory waste has been carried out. Sago pulp has been turned into charcoal through carbonization at 400oC for 2 hours. The results of charcoal characterization using XRD show that the carbon produced from sago pulp carbonization has a low crystallinity which is indicated by a wide peak at around 2θ 23oC, which is the characteristic carbon peak. The results of characterization using Surface Area Analyzer show that the pores in the sago pulp charcoal are very few and irregular, and dominated by macropores. The results of the characterization using SEM showed that sago pulp charcoal had very few pores. The material is dominated by the residue from the results of non-porous carbonization. Performance as an adsorbent to reduce the content of COD and BOD in tofu mill wastewater by batch method shows the capacity and efficiency of adsorption on COD of 75.00 mg/g and 35.21%, respectively. While capacity and efficiency of adsorption on COD of 7.00 mg / g and 3.57%, respectively
SINTESIS ZEOLIT A DARI ABU DASAR BATUBARA (COAL BOTTOM ASH) DENGAN METODE PELEBURAN DAN HIDROTERMAL Sunarti Sunarti
Molluca Journal of Chemistry Education (MJoCE) Vol 11 No 1 (2021): MJoCE
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol11iss1pp8-16

Abstract

Zeolites can be synthesized from materials containing silica (SiO2) and alumina (Al2O3). The analysis showed that the coal bottom ash from PLTU Paiton contained a number of oxides, namely: SiO2 49.73%; Al2O3 19.51%; Fe2O3 16.18%; CaO 5.40%; MgO 2.96%; Na2O 1.23%; K2O 0.84%; TiO2 0.99%; MnO 0.17%; and LOI of 2.38%. Zeolite from coal bottom ash was carried out by fussion and hydrothermal methods. Based on the percentage of alumina from the bottom ash, it is necessary to add pure alumina for the perfection of the zeolite formed. The addition of 1.5 g sodium aluminate resulted in a higher crystallinity level of the zeolite. This is indicated by the appearance of sharp peaks at 2θ = 30.098 (d = 2.96); 24.14 (d = 3.68); 27.24 (d = 3.27); 6.63 (d = 13.31); 7.08 (d = 12.47); 7.32 (d = 12.06) and 10.30 (d = 8.58). Based on the comparison of the peaks that appear on the diffractogram with the standards proposed by Ballmoos, with the addition of 1.5 grams of aluminate, the overall zeolite formed is zeolite A.
Co-Authors Nova Kayadoe Prima D Rahawarin Victor Kayadoe