Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/181898
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dc.contributor.authorSimatupang, Lisnawatyen_US
dc.contributor.authorSiburian, Riksonen_US
dc.contributor.authorGinting, Elfridaen_US
dc.contributor.authorPakpahan, Binsar Maruli Tuaen_US
dc.contributor.authorSimatupang, Kristian Adinata Pratamaen_US
dc.contributor.authorSiagian, Dea Gracellaen_US
dc.contributor.authorLaoli, Edward Reliusen_US
dc.contributor.authorGoei, Ronnen_US
dc.contributor.authorTok, Alfred Iing Yoongen_US
dc.date.accessioned2024-12-30T02:36:54Z-
dc.date.available2024-12-30T02:36:54Z-
dc.date.issued2024-
dc.identifier.citationSimatupang, L., Siburian, R., Ginting, E., Pakpahan, B. M. T., Simatupang, K. A. P., Siagian, D. G., Laoli, E. R., Goei, R. & Tok, A. I. Y. (2024). Sustainable porous silica material extracted from volcanic ash of Mount Sinabung Indonesia as corrosion inhibitor. International Journal of Technology, 15(4), 880-889. https://dx.doi.org/10.14716/ijtech.v15i4.6740en_US
dc.identifier.issn2086-9614en_US
dc.identifier.urihttps://hdl.handle.net/10356/181898-
dc.description.abstractThis study investigated the potential of porous silica material extracted from volcanic ash of Mount Sinabung, Indonesia, as a corrosion inhibitor. The new material was subjected to comprehensive analysis using the X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Search Engine Marketing (SEM), and Atomic Absorption Spectrophotometry (AAS). Corrosion test was conducted by coating the metal surface with synthesized silica. XRD data showed the presence of amorphous silica, while SEM indicated a rough and irregular pore cavity. Based on AAS characterization, the concentration of silica in the Mount Sinabung volcanic ash was 79.23 % (v/v) with a yield of 29.73 %(w/w). Furthermore, coated and uncoated iron plates, with grit variations of 800, 1200, 1500, and 2000, were tested against HCl 15 % (v/v) and NaCl 3.5 % (w/v) as model corrosive solutions. The SEM results showed that coated plates had fewer holes and cracks formation while the XRD analysis of the same samples presented a slight decrease in the intensity of iron phase. Among silica-coated iron plates, the 1500 grit variation had the lowest corrosion rate and the highest corrosion inhibitor efficiency in both HCl 15 % (v/v) and NaCl 3.5 % (w/v) corrosive solutions, recording efficiencies of 26.3 and 91.8 %, respectively.en_US
dc.language.isoenen_US
dc.relation.ispartofInternational Journal of Technologyen_US
dc.rights© The Authors. This is an open-access article distributed under the terms of the Creative Commons License.en_US
dc.subjectEngineeringen_US
dc.titleSustainable porous silica material extracted from volcanic ash of Mount Sinabung Indonesia as corrosion inhibitoren_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.identifier.doi10.14716/ijtech.v15i4.6740-
dc.description.versionPublished versionen_US
dc.identifier.scopus2-s2.0-85199068847-
dc.identifier.issue4en_US
dc.identifier.volume15en_US
dc.identifier.spage880en_US
dc.identifier.epage889en_US
dc.subject.keywordsCorrosion inhibitoren_US
dc.subject.keywordsNatural silicaen_US
dc.description.acknowledgementThe authors acknowledge financial support from Universitas Negeri Medan for the Financial Year 2021-2022 under Applied Product Research, Contract Numbers: 008/UN33.8/PL.PNBP/2021 and 104/UN33.8/KEP/PPKM/PT/2022.en_US
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