Effects of Preferential Incorporation of Carboxylic Acids on the Crystal Growth and Physicochemical Properties of Aragonite
The preferential incorporation of carboxylic acids into aragonite and its effects on the crystal growth and physicochemical properties of aragonite were systematically investigated using a seeded co-precipitation system with different carboxylic acids (citric, malic, acetic, glutamic, and phthalic)....
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/11/960 |
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| author | Seon Yong Lee Uijin Jo Bongsu Chang Young Jae Lee |
| author_facet | Seon Yong Lee Uijin Jo Bongsu Chang Young Jae Lee |
| author_sort | Seon Yong Lee |
| collection | DOAJ |
| description | The preferential incorporation of carboxylic acids into aragonite and its effects on the crystal growth and physicochemical properties of aragonite were systematically investigated using a seeded co-precipitation system with different carboxylic acids (citric, malic, acetic, glutamic, and phthalic). Aragonite synthesized in the presence of citric and malic acids showed a remarkable decrease in the crystallinity and size of crystallite, and the retardation of crystal growth distinctively changed the crystal morphology. The contents of citric acid and malic acid in the aragonite samples were 0.65 wt % and 0.19 wt %, respectively, revealing that the changes in the physicochemical properties of aragonite were due to the preferential incorporation of such carboxylic acids. Speciation modeling further confirmed that citric acid with three carboxyl groups dominantly existed as a metal–ligand, (Ca–citrate)<sup>−</sup>, which could have a strong affinity toward the partially positively charged surface of aragonite. This indicates why citric acid was most favorably incorporated among other carboxylic acids. Our results demonstrate that the number of carboxyl functional groups strongly affects the preferential incorporation of carboxylic acids into aragonite; however, it could be suppressed by the presence of other functional groups or the structural complexity of organic molecules. |
| first_indexed | 2024-03-10T15:24:54Z |
| format | Article |
| id | doaj.art-b3452cda0b934206a7e36b1481170fab |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T15:24:54Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-b3452cda0b934206a7e36b1481170fab2023-11-20T18:08:51ZengMDPI AGCrystals2073-43522020-10-01101196010.3390/cryst10110960Effects of Preferential Incorporation of Carboxylic Acids on the Crystal Growth and Physicochemical Properties of AragoniteSeon Yong Lee0Uijin Jo1Bongsu Chang2Young Jae Lee3Department of Earth and Environmental Sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaDepartment of Earth and Environmental Sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaDepartment of Earth and Environmental Sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaDepartment of Earth and Environmental Sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaThe preferential incorporation of carboxylic acids into aragonite and its effects on the crystal growth and physicochemical properties of aragonite were systematically investigated using a seeded co-precipitation system with different carboxylic acids (citric, malic, acetic, glutamic, and phthalic). Aragonite synthesized in the presence of citric and malic acids showed a remarkable decrease in the crystallinity and size of crystallite, and the retardation of crystal growth distinctively changed the crystal morphology. The contents of citric acid and malic acid in the aragonite samples were 0.65 wt % and 0.19 wt %, respectively, revealing that the changes in the physicochemical properties of aragonite were due to the preferential incorporation of such carboxylic acids. Speciation modeling further confirmed that citric acid with three carboxyl groups dominantly existed as a metal–ligand, (Ca–citrate)<sup>−</sup>, which could have a strong affinity toward the partially positively charged surface of aragonite. This indicates why citric acid was most favorably incorporated among other carboxylic acids. Our results demonstrate that the number of carboxyl functional groups strongly affects the preferential incorporation of carboxylic acids into aragonite; however, it could be suppressed by the presence of other functional groups or the structural complexity of organic molecules.https://www.mdpi.com/2073-4352/10/11/960aragonitecarboxylic acidspreferential incorporationcrystal growthphysicochemical properties |
| spellingShingle | Seon Yong Lee Uijin Jo Bongsu Chang Young Jae Lee Effects of Preferential Incorporation of Carboxylic Acids on the Crystal Growth and Physicochemical Properties of Aragonite Crystals aragonite carboxylic acids preferential incorporation crystal growth physicochemical properties |
| title | Effects of Preferential Incorporation of Carboxylic Acids on the Crystal Growth and Physicochemical Properties of Aragonite |
| title_full | Effects of Preferential Incorporation of Carboxylic Acids on the Crystal Growth and Physicochemical Properties of Aragonite |
| title_fullStr | Effects of Preferential Incorporation of Carboxylic Acids on the Crystal Growth and Physicochemical Properties of Aragonite |
| title_full_unstemmed | Effects of Preferential Incorporation of Carboxylic Acids on the Crystal Growth and Physicochemical Properties of Aragonite |
| title_short | Effects of Preferential Incorporation of Carboxylic Acids on the Crystal Growth and Physicochemical Properties of Aragonite |
| title_sort | effects of preferential incorporation of carboxylic acids on the crystal growth and physicochemical properties of aragonite |
| topic | aragonite carboxylic acids preferential incorporation crystal growth physicochemical properties |
| url | https://www.mdpi.com/2073-4352/10/11/960 |
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