Пошук академічних текстів

Інформація × Реєстраційний номер 2121U002285, Матеріали видань та локальних репозитаріїв Категорія Стаття Назва роботи Influence of Impurity on the Properties of Chemically Synthesized Calcium Hydroxide Автор Дата публікації 01-01-2021 Постачальник інформації Сумський державний університет Першоджерело https://essuir.sumdu.edu.ua/handle/123456789/82599 Видання Sumy State University Опис Here we report synthesis and characterization of chemically synthesized calcium hydroxide (Ca(OH)2) with and without deliberate presence of NaNO3 as an impurity. Calcium nitrate tetrahydrate (Ca(NO3)2.4H2O) is used as precursor and alkaline NaOH solution is used as precipitant to synthesize the Ca(OH)2 samples. The samples were characterized by XRD, FESEM, FTIR spectroscopy, DTA, TGA and UV-Vis spectroscopy techniques. From the UV-Vis spectroscopy results, it is found that the Ca(OH)2 with NaNO3 impurity has higher bandgap than the sample without NaNO3. The weight loss in TGA is also more for the Ca(OH)2 with impurity than the one for without impurity. The results are discussed in terms of composition formed during synthesis process. Додано в НРАТ 2025-03-24 Закрити