Growth and characterization of ammonium nickel-cobalt sulfate Tutton’s salt for UV light applications
Autor: | Santunu Ghosh, Tiago S. Pacheco, Genivaldo Julio Perpétuo, Michelle de Oliveira, Carlos J. Franco |
---|---|
Rok vydání: | 2018 |
Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Materials science Analytical chemistry chemistry.chemical_element Salt (chemistry) 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Inorganic Chemistry symbols.namesake Tutton's salt Nickel chemistry Materials Chemistry symbols Thermal stability Fourier transform infrared spectroscopy 0210 nano-technology Raman spectroscopy Powder diffraction |
Zdroj: | Journal of Crystal Growth. 487:104-115 |
ISSN: | 0022-0248 |
DOI: | 10.1016/j.jcrysgro.2018.02.027 |
Popis: | We have obtained a set of sample crystals of the family of Tutton’s salt comprise in the isomorphic series with general chemical formula (NH 4 ) 2 Ni x Co (1−x) (SO 4 ) 2 ·6H 2 O, by employing growth from solutions by slow evaporation technique. The samples crystals were characterized by ICP-AES, X-ray powder diffraction analysis, thermogravimetric analysis, UV–Vis-NIR, Raman and FTIR spectroscopy. This type of material has been studied because of its physical and chemical properties not yet understood and they have potential technological applications. Chemical analysis of the samples by ICP-AES method allowed us to investigate the efficiency of the method of growth used. Thermogravimetric analysis provides the information about the thermal stability of the obtained crystals for high temperature applications, and powder X-ray diffraction analysis at ambient and high temperature reveals the structural quality and structural change of the samples respectively. We have used Raman spectroscopy in the range 100–4000 cm −1 and FTIR spectroscopy in the range 400–4000 cm −1 to understand the internal vibrational mode of the octahedral complexes [Ni(H 2 O) 6 ] 2+ and [Co(H 2 O) 6 ] 2+ , SO 4 2− and NH 4 + tetrahedra. The transmittance of our mixed ammonium nickel cobalt sulfate hexahydrate (ACNSH) crystals is 75% in the UV region, which indicates that they are ideal to use in UV light filters and UV sensors. |
Databáze: | OpenAIRE |
Externí odkaz: |