Adji, Nafisa Tera Lintang (2024) Sintesis dan Karakterisasi Nanokalsium Oksida Dari Cangkang Kerang Hijau Dengan Metode Presipitasi. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Calcium is needed by the body as an essential nutrient, using nano technology calcium can be converted into nanocalcium. Nanocalcium is the smallest form of calcium that can be properly absorbed by the body. Nano technology reduces the size of calcium to (10-100 nm). Nanocalcium oxide is easily absorbed by the body due to its nano size compared to calcium sold commercially. Nanocalcium oxide can be obtained from materials that contain high levels of CaCO3, such as green mussel shells which have CaCO3 levels of 95.67%. Nanocalcium oxide can be made using the precipitation method. The way the precipitation method works is by using a strong alkaline solution and the process of burning the precipitate in a furnace at a temperature of 600°C to produce nanocalcium oxide. In this study the results obtained were influenced by extraction time and HCl concentration. Based on the research results, it shows that the HCl concentration and extraction time have no effect on the % Ca levels obtained. Ca levels from SSA analysis, the highest Ca levels were obtained at an extraction time of 2.5 hours at a 3N HCl concentration of 93.93% and a 4N HCl concentration of 92.8%. Apart from using SSA analysis in the research, SEM-EDX analysis was also carried out to determine the particle size and arrangement of elements in the sample. The samples that have been tested have a morphology consisting of irregular grains with a size range of 314-380nm. Calcium sold commercially has a size range of 453-513nm, which is larger than the research results.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > T Technology (General) T Technology > TP Chemical technology T Technology > TP Chemical technology > TP155 Chemical engineering |
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| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | Nafisa Tera Lintang Adji | ||||||||
| Date Deposited: | 30 May 2024 02:49 | ||||||||
| Last Modified: | 30 May 2024 02:49 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/23014 |
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