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Sorption of HDTMA cations on Croatian natural mordenite tuff


Rožić, Mirela; Miljanić, Snežana
Sorption of HDTMA cations on Croatian natural mordenite tuff // Journal of hazardous materials, 185 (2011), 1; 423-429 doi:10.1016/j.jhazmat.2010.09.050 (međunarodna recenzija, članak, znanstveni)


Naslov
Sorption of HDTMA cations on Croatian natural mordenite tuff

Autori
Rožić, Mirela ; Miljanić, Snežana

Izvornik
Journal of hazardous materials (0304-3894) 185 (2011), 1; 423-429

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
mordenite tuff; hexadecyltrimethylammonium cation; sorption

Sažetak
Sorption of the cationic surfactant, hexadecyltrimethylammonium cations (HDTMA), on the solid/liquid interface of the natural mordenite tuff (MT) was studied. The examined tuff originated from Croatia consisting of 30% of mordenite. SEM observations confirmed the crystalline nature of mordenite which can be described in terms of aggregates of many small platelets with diameters in the range of 1 m. Studying the porosity properties of MT, it was found that the average pore diameter (4.42 nm) between mordenite’s platelets allows penetration of HDTMA cations. The measurements of zeta potential indicated that in MT samples with surfactant concentration in the range between 0.013 and 0.25 mmol/g, HDTMA cations fill the mesopores of MT. By further increase in HDTMA concentration, the surfactant sorbs on the external zeolite surface, as revealed by the SEM micrographs. Vibrational (FTIR and FT Raman) spectra showed that in the MT samples with initial HDTMA concentration from 0.013 to 0.25 mmol/g, alkyl chains adopt mainly gauche conformation, whereas in the MT samples with higher initial HDTMA concentrations trans conformers are predominant and form a highly ordered structure on the mordenite surface.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Grafička tehnologija



POVEZANOST RADA


Projekt / tema
119-1191342-2959 - Spektroskopska analiza nezasićenih sustava i spojeva metala (Snežana Miljanić, )
125-1253008-3009 - Membranski i adsorpcijski postupci uklanjanja organskih tvari pri obradbi voda (Krešimir Košutić, )

Ustanove
Prirodoslovno-matematički fakultet, Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb,
Grafički fakultet, Zagreb

Profili:

Avatar Url Mirela Rožić (autor)

Avatar Url Snežana Miljanić (autor)

Citiraj ovu publikaciju

Rožić, Mirela; Miljanić, Snežana
Sorption of HDTMA cations on Croatian natural mordenite tuff // Journal of hazardous materials, 185 (2011), 1; 423-429 doi:10.1016/j.jhazmat.2010.09.050 (međunarodna recenzija, članak, znanstveni)
Rožić, M. & Miljanić, S. (2011) Sorption of HDTMA cations on Croatian natural mordenite tuff. Journal of hazardous materials, 185 (1), 423-429 doi:10.1016/j.jhazmat.2010.09.050.
@article{article, year = {2011}, pages = {423-429}, DOI = {10.1016/j.jhazmat.2010.09.050}, keywords = {mordenite tuff, hexadecyltrimethylammonium cation, sorption}, journal = {Journal of hazardous materials}, doi = {10.1016/j.jhazmat.2010.09.050}, volume = {185}, number = {1}, issn = {0304-3894}, title = {Sorption of HDTMA cations on Croatian natural mordenite tuff}, keyword = {mordenite tuff, hexadecyltrimethylammonium cation, sorption} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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