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Pregled bibliografske jedinice broj: 2611

Electrokinetic and FT-IR study of the influence of polyacrylic acids and fulvic acids on SiO_2, Al(OH)_3 and Al_2O_3 which are used as models for clay mineral surfaces


Gotić, Marijan; Milat, Ognjen; Sondi, Ivan
Electrokinetic and FT-IR study of the influence of polyacrylic acids and fulvic acids on SiO_2, Al(OH)_3 and Al_2O_3 which are used as models for clay mineral surfaces // 6. EMINar. Book of Abstracts / Tatjana Bakran-Petricioli (ur.).
Zagreb: EMINar, 1997. str. 41-41 (poster, nije recenziran, sažetak, znanstveni)


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Naslov
Electrokinetic and FT-IR study of the influence of polyacrylic acids and fulvic acids on SiO_2, Al(OH)_3 and Al_2O_3 which are used as models for clay mineral surfaces

Autori
Gotić, Marijan ; Milat, Ognjen ; Sondi, Ivan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
6. EMINar. Book of Abstracts / Tatjana Bakran-Petricioli - Zagreb : EMINar, 1997, 41-41

Skup
6. EMINar

Mjesto i datum
Sali, Hrvatska, 01 - 06. 04. 1997

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
clay mineral surfaces; electrokinetic measurements; adsorbed organic material; FT-IR

Sažetak
The influence of fulvic acid (FA) and poly(acryl acid) (PAA) on the electrokinetic potentials of model oxides, SiO_2, Al(OH)_3 and Al_2O_3 in 1x10-3 mol dm-3 NaCl solutions at constant pH of 6.5 was investigated. Amorphous SiO_2 shows no influence of FA. Al(OH)_3 shows a significant increase of the negative electrokinetic potential with increasing concentration of FA. For Al_2O_3 the reversal of charge occurs at approx. 4 mg dm-3 of FA in a steeply rising potential with a slope of cca. 60 mV/log c, towards high negative values. FT-IR spectrum of adsorbed fulvic acid on Al_2O_3 is characterized with a new band at 1385 cm-1 comparing to the FT-IR spectrum of pure aluminum oxide. After adsorption of polyacrylic acids, new bands at 1560 and 1323 cm-1 appeared in the FT-IR spectrum of Al_2O_3.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
00980903
00981507

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Marijan Gotić (autor)

Avatar Url Ivan Sondi (autor)

Avatar Url Ognjen Milat (autor)

Citiraj ovu publikaciju

Gotić, Marijan; Milat, Ognjen; Sondi, Ivan
Electrokinetic and FT-IR study of the influence of polyacrylic acids and fulvic acids on SiO_2, Al(OH)_3 and Al_2O_3 which are used as models for clay mineral surfaces // 6. EMINar. Book of Abstracts / Tatjana Bakran-Petricioli (ur.).
Zagreb: EMINar, 1997. str. 41-41 (poster, nije recenziran, sažetak, znanstveni)
Gotić, M., Milat, O. & Sondi, I. (1997) Electrokinetic and FT-IR study of the influence of polyacrylic acids and fulvic acids on SiO_2, Al(OH)_3 and Al_2O_3 which are used as models for clay mineral surfaces. U: Tatjana Bakran-Petricioli (ur.)6. EMINar. Book of Abstracts.
@article{article, year = {1997}, pages = {41-41}, keywords = {clay mineral surfaces, electrokinetic measurements, adsorbed organic material, FT-IR}, title = {Electrokinetic and FT-IR study of the influence of polyacrylic acids and fulvic acids on SiO\_2, Al(OH)\_3 and Al\_2O\_3 which are used as models for clay mineral surfaces}, keyword = {clay mineral surfaces, electrokinetic measurements, adsorbed organic material, FT-IR}, publisher = {EMINar}, publisherplace = {Sali, Hrvatska} }
@article{article, year = {1997}, pages = {41-41}, keywords = {clay mineral surfaces, electrokinetic measurements, adsorbed organic material, FT-IR}, title = {Electrokinetic and FT-IR study of the influence of polyacrylic acids and fulvic acids on SiO\_2, Al(OH)\_3 and Al\_2O\_3 which are used as models for clay mineral surfaces}, keyword = {clay mineral surfaces, electrokinetic measurements, adsorbed organic material, FT-IR}, publisher = {EMINar}, publisherplace = {Sali, Hrvatska} }




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