期刊
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
卷 65, 期 8, 页码 1127-1134出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0036023620080124
关键词
citrate; nitrate method; hydrothermal treatment; spectrophotometry; nanotubes
资金
- Russian Foundation for Basic Research [19-33-90108_Aspiranty]
The paper describes the results of a physicochemical study of materials obtained in the K2O-MO(M2O3)-TiO(2)systems (M = Ni, Mg, Al, Fe, Cr) by pyrolysis of citrate-nitrate compositions and by co-precipitation followed by hydrothermal treatment. It was shown that the nanoparticles formed in the hydrothermal process have a high sorption capacity towards the model dye (methylene blue), but do not show a noticeable photocatalytic activity. The use of the citrate-nitrate method for the synthesis of nanopowders provides materials with a markedly lower sorption capacity, but with a higher photocatalytic activity. Spectral studies were performed to estimate the band gap width of the synthesized samples. As a result, the optimal compositions for obtaining sorbents and photocatalysts in these systems were identified.
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