Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Jankovic-Castvan Ivona"'
Autor:
Ivanović Marija, Kljajević Ljiljana, Gulicovski Jelena, Petkovic Marijana, Janković-Častvan Ivona, Bučevac Dušan, Nenadović Snežana
Publikováno v:
Science of Sintering, Vol 52, Iss 2, Pp 219-229 (2020)
This paper outlines the production of an inorganic polymer/geopolymer using a metakaolin by an environmental friendly, energy saving, clean technology to conserve natural environment and resources. The influence of alkali activation, i.e. differen
Externí odkaz:
https://doaj.org/article/af73a19652794f4d8f938fcd7119b896
Autor:
Nikolić Irena, Tadić Milena, Janković-Častvan Ivona, Radmilović Vuk V., Radmilović Velimir R.
Publikováno v:
Journal of the Serbian Chemical Society, Vol 83, Iss 10, Pp 1143-1156 (2018)
The durability of alkali-activated steel electric arc furnace slag (EAFS) in a marine environment was evaluated with respect to the chemical composition of the alkaline activator. Two different alkaline activators have been used: a mixture of NaOH an
Externí odkaz:
https://doaj.org/article/acc9f4d663374ba99bf43e6e75385cea
Autor:
Janković-Častvan Ivona, Lazarević Slavica, Stojanović Dušica, Živković Predrag, Petrović Rada, Janaćković Đorđe
Publikováno v:
Journal of the Serbian Chemical Society, Vol 81, Iss 11, Pp 1295-1305 (2016)
In order to improve the mechanical properties of paper, 1, 3 and 5 wt.% of sepiolite were dispersed in a poly(vinyl butyral) (PVB) matrix and coated onto the surface of schrenz (110 g m-2). Deagglomerated sepiolite nanofibers in PVB matrix on pape
Externí odkaz:
https://doaj.org/article/241042f390d8459ba4bca0cd03c19e88
Autor:
Lazarević Slavica S., Janković-Častvan Ivona M., Jokić Bojan M., Janaćković Đorđe T., Petrović Rada D.
Publikováno v:
Journal of the Serbian Chemical Society, Vol 81, Iss 2, Pp 197-208 (2016)
sorption of Ni2+ on the sepiolite functionalized by covalent grafting of N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt, MSEAS, was studied in batch experiments as a function of the initial metal concentration, the equi
Externí odkaz:
https://doaj.org/article/a069d2a808d14c3eba3788b6e101ac72
Autor:
Lazarević Slavica S., Janković-Častvan Ivona M., Jokić Bojan M., Janaćković Djordje T., Petrović Rada D.
Publikováno v:
Journal of the Serbian Chemical Society, Vol 80, Iss 9, Pp 1193-1202 (2015)
Natural sepiolite from Andrici (Serbia) was functionalized by covalent grafting of N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt to the Si-OH sepiolite groups. The functionalized material, MSEAS, was characterized by d
Externí odkaz:
https://doaj.org/article/8b8815c83d6c4e2aa8ec3a3044f000f9
Autor:
Habish Amal Juma, Lazarević Slavica, Janković-Častvan Ivona, Potkonjak Branislav, Janaćković Đorđe, Petrović Rada
Publikováno v:
Chemical Industry and Chemical Engineering Quarterly, Vol 21, Iss 2, Pp 295-303 (2015)
In this study, the sorption of cadmium ions onto sepiolite modified with hydrated iron(III) oxide, Fe(III)-sepiolite, has been investigated in natural seawater, artificial seawater, aqueous solution of NaCl of the same ionic strength as the seawat
Externí odkaz:
https://doaj.org/article/40ba37a934384277b8f65e336ab09e6d
Autor:
Mihajlović Marija T., Lazarević Slavica S., Janković-Častvan Ivona M., Jokić Bojan M., Janaćković Đorđe T., Petrović Rada D.
Publikováno v:
Chemical Industry and Chemical Engineering Quarterly, Vol 20, Iss 2, Pp 283-293 (2014)
The main purpose of this research was to explain the differences in the adsorption mechanisms and adsorption capacities of natural and Fe(III)-modified zeolite for Pb2+, Zn2+ and Cd2+ ions. The adsorbents were characterized with respect to their p
Externí odkaz:
https://doaj.org/article/f8c8a962bf714dc88a62a29a874a04fa
Autor:
Marjanović Vesna M., Lazarević Slavica S., Janković-Častvan Ivona M., Jokić Bojan M., Bjelajac Anđelika Z., Janaćković Đorđe T., Petrović Rada D.
Publikováno v:
Hemijska Industrija, Vol 67, Iss 5, Pp 715-728 (2013)
Chromium(VI) adsorption from aqueous solutions onto thermo-acid activated sepiolite functionalized with (3-mercaptopropyl)trimethoxy-silane and [3-(2-aminoethylamino)pro-pyl]trimethoxy-silane, was investigated. Scanning electron microscopy, X-ray
Externí odkaz:
https://doaj.org/article/c7ce430000154c879152b37ae2fd3713
Autor:
Lazarević Slavica S., Janković-Častvan Ivona M., Ilić Miloje M., Jovanović Dušan M., Janaćković Đorđe T., Petrović Rada D.
Publikováno v:
Hemijska Industrija, Vol 60, Iss 1-2, Pp 15-22 (2006)
The results of the characterization and the sorption properties of sepiolite from the locality Slovići are presented in this paper. X-Ray diffraction analysis, infrared spectroscopy and differential thermal analysis revealed sepiolite as the main ph
Externí odkaz:
https://doaj.org/article/9e6005ee033d46dd81460da8f4889c9e
Publikováno v:
In Carbohydrate Polymers 1 May 2024 331