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Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate
This article presents a two-step method of iron red synthesis based on waste long-term deposited iron(II) sulfate. The first step is the purification of waste iron sulfate, and then the pigment is synthesized by precipitation using a microwave reactor. The newly developed method of purification allo...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10145836/ https://www.ncbi.nlm.nih.gov/pubmed/37110078 http://dx.doi.org/10.3390/ma16083242 |
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author | Splinter, Kamila Moszyński, Dariusz Lendzion-Bieluń, Zofia |
author_facet | Splinter, Kamila Moszyński, Dariusz Lendzion-Bieluń, Zofia |
author_sort | Splinter, Kamila |
collection | PubMed |
description | This article presents a two-step method of iron red synthesis based on waste long-term deposited iron(II) sulfate. The first step is the purification of waste iron sulfate, and then the pigment is synthesized by precipitation using a microwave reactor. The newly developed method of purification allows for quick and thorough purification of iron salt. The use of a microwave reactor in the synthesis of iron red makes it possible to reduce the temperature of the goethite–hematite phase transition from 500 °C to 170 °C and skip the calcination process. A temperature reduction in the synthesis decreases the formation of agglomerates of synthesized materials compared to commercial ones. The results of the research showed a change in the physicochemical properties of the obtained pigments depending on the conditions of synthesis. Waste iron(II) sulfate is a promising raw material for the synthesis of iron red pigments. Laboratory pigments are found to be differ from commercial pigments. The difference in properties speaks in favor of synthesized materials. |
format | Online Article Text |
id | pubmed-10145836 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-101458362023-04-29 Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate Splinter, Kamila Moszyński, Dariusz Lendzion-Bieluń, Zofia Materials (Basel) Article This article presents a two-step method of iron red synthesis based on waste long-term deposited iron(II) sulfate. The first step is the purification of waste iron sulfate, and then the pigment is synthesized by precipitation using a microwave reactor. The newly developed method of purification allows for quick and thorough purification of iron salt. The use of a microwave reactor in the synthesis of iron red makes it possible to reduce the temperature of the goethite–hematite phase transition from 500 °C to 170 °C and skip the calcination process. A temperature reduction in the synthesis decreases the formation of agglomerates of synthesized materials compared to commercial ones. The results of the research showed a change in the physicochemical properties of the obtained pigments depending on the conditions of synthesis. Waste iron(II) sulfate is a promising raw material for the synthesis of iron red pigments. Laboratory pigments are found to be differ from commercial pigments. The difference in properties speaks in favor of synthesized materials. MDPI 2023-04-20 /pmc/articles/PMC10145836/ /pubmed/37110078 http://dx.doi.org/10.3390/ma16083242 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Splinter, Kamila Moszyński, Dariusz Lendzion-Bieluń, Zofia Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate |
title | Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate |
title_full | Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate |
title_fullStr | Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate |
title_full_unstemmed | Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate |
title_short | Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate |
title_sort | microwave-reactor-based preparation of red iron oxide pigment from waste iron sulfate |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10145836/ https://www.ncbi.nlm.nih.gov/pubmed/37110078 http://dx.doi.org/10.3390/ma16083242 |
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