Functional Materials, 2016, № 1http://dspace.nbuv.gov.ua:80/handle/123456789/1147332024-03-28T21:34:48Z2024-03-28T21:34:48ZProfessor B.V.Grinyov - 60 yearshttp://dspace.nbuv.gov.ua:80/handle/123456789/1218662017-06-21T00:02:22Z2016-01-01T00:00:00ZProfessor B.V.Grinyov - 60 years
2016-01-01T00:00:00ZCharacteristics of cadmium ion sorption from aqueous solutions on copper(II) sulfide at different temperatures and pHBulgakova, A.V.Sofronov, D.S.Bryleva, E.Yu.Chebanov, V.A.http://dspace.nbuv.gov.ua:80/handle/123456789/1205772017-06-13T00:05:51Z2016-01-01T00:00:00ZCharacteristics of cadmium ion sorption from aqueous solutions on copper(II) sulfide at different temperatures and pH
Bulgakova, A.V.; Sofronov, D.S.; Bryleva, E.Yu.; Chebanov, V.A.
Characteristics of cadmium ion sorption from aqueous solutions on copper(II) sulfide at different temperatures and pH were investigated. The sorption process obeys to the Langmuir equation, which is used to calculate the sorption capacities of copper(II) sulfide. It is shown that the sorption capacity increases with increase of pH and decrease of temperature. The sorption capacity changes from 5.6 mg/g at pH 5 and 308 K to 15.2 mg/g at pH 7 and 288 K. Optimization of the conditions permits to improve the copper(II) sulfide sorption capacity. The pH changes during the sorption obey to the Kurbatov equation with the sorption process being the ion exchange reaction.
2016-01-01T00:00:00ZSol-gel synthesis of NZP phosphatesShkuropatenko, V.A.http://dspace.nbuv.gov.ua:80/handle/123456789/1205762017-06-13T00:05:13Z2016-01-01T00:00:00ZSol-gel synthesis of NZP phosphates
Shkuropatenko, V.A.
Nanosized zirconium orthophosphate powders NaZr₂(PO₄)₃ were synthesized by the sol-gel method. Evolution of the phase composition of the synthesized powder depending on the excess amount of Na₂CO₃ was investigated. Obtained phosphates were characterized by means of XRD, DTA/TGA, electron microscopy and IR spectroscopy methods.
2016-01-01T00:00:00ZManufacture of sapphire ribbons with low dislocation densitySafronov, R.I.Litvinov, L.A.Voloshin, A.V.Bochkov, V.F.http://dspace.nbuv.gov.ua:80/handle/123456789/1205752017-06-13T00:05:34Z2016-01-01T00:00:00ZManufacture of sapphire ribbons with low dislocation density
Safronov, R.I.; Litvinov, L.A.; Voloshin, A.V.; Bochkov, V.F.
Uniform thermal field with the axial temperature gradient of 11.6 K/cm was formed in a cylindrical heater. There were obtained 15x85x300 mm3 sapphire ribbons with dislocation density up to 103 cm-2. The dislocation density of sapphire ribbons at the axial temperature gradient of 11.6 K/cm was found to be comparable with the one in the crystals obtained by the Czochralski and Kyropoulos methods.
2016-01-01T00:00:00Z