Influence of Impurity on the Properties of Chemically Synthesized Calcium Hydroxide

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Title	Influence of Impurity on the Properties of Chemically Synthesized Calcium Hydroxide
Authors	Harish, Kumar, Pushpendra Kumari, Jyoti Phalswal, Priyanka Khanna, Pawan K. Salim, Amena Singhal, Rahul Mukhopadhyay, Anoop Kumar Joshi, Rajendra P.
ORCID
Keywords	calcium hydroxide NaOH NaNO3 TGA-DTA impurity chemical synthesis
Type	Article
Date of Issue	2021
URI	https://essuir.sumdu.edu.ua/handle/123456789/82599
Publisher	Sumy State University
License	In Copyright
Citation	Harish, Pushpendra Kumar, Jyoti Kumari, et al., J. Nano- Electron. Phys. 13 No 1, 01029 (2021). DOI: https://doi.org/10.21272/jnep.13(1).01029
Abstract	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.
Appears in Collections:	Журнал нано- та електронної фізики (Journal of nano- and electronic physics)