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All Journal Jurnal Kartika Kimia Jurnal Riset Teknologi Pencegahan Pencemaran Industri
Sutianingsih, Yulis
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Engineering Environmental Science

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A Review: Antibacterial Activity of Metal Impregnated Zeolite in Water Treatment Process Sutianingsih, Yulis; K., Widya Ernayati; Kurniawan, Teguh
Jurnal Kartika Kimia Vol 5 No 1 (2022): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v5i1.112

Abstract

Environmental and health problems related to water pollution by bacteria are a big challenge in the water treatment process. This pollution is caused by industrial development and increased population growth. Bacterial removal methods in water are continuously developed to find an efficient water treatment process. Zeolite has the potential to be an adsorbent used in the water treatment process. Zeolite has been widely used in adsorption and catalytic processes. Zeolite is a porous alumina silicate consisting of silicon, aluminium, and oxygen in its framework. Zeolite cations can be exchanged with monovalent or divalent ions. Zeolite does not have antibacterial activity, so it should combine with metal cations such as Ag, Cu, Zn, and Fe. Metal active that loaded into zeolite framework is a solution to improve the zeolite performance for bacteries removing in water. The impregnation method is the most widely used for the metal loading process into zeolite framework, because of its simple and economical process. This review will discuss natural and synthetic zeolites, types of metal, impregnation process, the antibacterial activity of metal impregnated zeolite, bacterial attack mechanism, and antibacterial application of metal impregnated zeolite in water
The pH-electrodeposition-dependant of Iron Oxide Toward The Physicochemical Characteristics and Electrochemical Performance in Biorefractory Pollutant Degradation Kosimaningrum, Widya Ernayati; Heriyanto, Heri; Yulvianti, Meri; Pitaloka, Alia Badra; Najahtama, Muhammad Raja; Wibisana, Muhammad Aditya; Sutianingsih, Yulis
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 14 No. 1 (2023): May
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2023.v14.no1.p8-18

Abstract

Electrodeposition of the iron oxide (FexOy) nanoparticles on the graphite felt was prepared from a mixture of iron (II) and iron (III) precursor solution with various pHs (2, 7, and 10) by applying a constant current (galvanostatic) of 0.1 A for 30 minutes. Each resulting sample was coded GF/FexOy -2, GF/FexOy -7, and GF/FexOy -10, respectively. Graphite felt without modification, Raw-GF, was used as control. The mass of iron oxide (FexOy) deposited ranged from 0.02 to 0.03 grams. The product characterisation using a Scanning Electron Microscope (SEM) showed the distribution of 500 nm particles on the surface of the graphite felt for the GF/FexOy -2 sample. In comparison, the distribution of larger particles (1 – 2 μm) was observed in the samples of GF/FexOy -7 and GF/FexOy -10, respectively. Spectrum resulting from an X-ray Diffraction Spectroscopy (XRD) showed the formation of iron oxides (FexOy) such as magnetite (Fe3O4), haematite (Fe2O3), goethite (FeOOH), and lepidocrocite (FeO(OH)). Fourier Transform Infra-Red (FTIR) spectrum also confirmed the presence of Fe2O3 in the GF/FexOy -2 sample, Fe3O4 in the GF/FexOy -7 and GF/FexOy -10 samples, and FeOOH in all three samples. Applying the iron oxide modified graphite felt in the electro-Fenton approach process without aeration showed that it can degrade bio-refractory pollutants, such as methyl orange. The observed degradations of methyl orange were a decrease in the colour intensity up to 81.37% and a decrease in the COD up to 49.85%.
Co-Authors Alia Badra Pitaloka, Alia Badra Heri Heriyanto K., Widya Ernayati Kosimaningrum, Widya Ernayati Meri Yulvianti Najahtama, Muhammad Raja Teguh Kurniawan Wibisana, Muhammad Aditya