期刊
CHEMICAL PHYSICS LETTERS
卷 779, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cplett.2021.138837
关键词
NiO particles; Solid-state combustion method; DFT; Photocatalytic degradation
资金
- Technical Quality Improvement Program (TEQIPIII) , India
Nickel oxide particles were synthesized at different temperatures through solid-state combustion, with varying annealing temperatures affecting crystallite size and photodegradation of methylene blue. The study revealed a clear enhancement of crystallinity with increasing temperature, leading to greater degradation of methylene blue. The density functional theory (DFT) studies also showed a good correlation with experimental findings.
Nickel oxide (NiO) particles were synthesized by varying temperature through solid-state combustion method. The effects of annealing temperatures such as 650, 750, 850, 950, and 1050 degrees C, on the crystallite size, absorption properties, and photodegradation of methylene blue (MB) were studied. Progressive enhancement of crystallinity of the samples was clearly observed in FE-SEM images. The photocatalytic degradation of MB with different crystallite sizes was studied, showing that degradation increases with increasing the sample's crystallinity. The percentage of degradation of MB dye is found to be 96% in three hours. Furthermore, the density functional theory (DFT) studies have been performed for NiO to understand the linear optical and chemical properties. The DFT results are found to have a good correlation with the experimental findings.
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