2021 Fiscal Year Final Research Report
Development of a New Synthesis Method Mimicking Iron-oxidizing Bacteria for Highly Chromatic Inorganic Pigments
| Project/Area Number |
20K21238
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
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| Research Institution | Okayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
押木 俊之 岡山大学, 自然科学研究科, 講師 (80311794)
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| Project Period (FY) |
2020-07-30 – 2022-03-31
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| Keywords | 酸化鉄 / 色調 / テンプレート / 赤色顔料 / 有機分子 |
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| Outline of Final Research Achievements |
Red pigments utilizing iron hydroxide produced by iron-oxidizing bacteria in nature are known to be vivid and highly heat-resistant. Based on this reaction mechanism, we attempted to develop a new synthetic process for the efficient mass production of highly saturated inorganic pigments using organic molecules. By examining the synthesis conditions in detail, we obtained inorganic pigments that exhibit color tones comparable to those of commercial pigments through a new synthesis process that is easy to scale up and suitable for mass production.
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| Free Research Field |
無機固体化学
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| Academic Significance and Societal Importance of the Research Achievements |
高彩度酸化鉄系顔料を合成するために様々な試みがなされており、鉄酸化細菌が作り出す多糖を利用して水中の鉄から水酸化鉄を得る方法（バイオテンプレート法）もその一つである。この方法の反応メカニズムを基に、本研究により、多糖でなくても特定の有機分子で金属化合物の集積化が可能であることが実験的に確かめられた。この成果は、完全人工化学プロセスによる、生産性の高い高彩色無機顔料の合成法の確立に向けて大きな前進である。
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