Study of interaction between humic acids and fullerene C60 using fluorescence quenching approach

• Autorzy: Klavins M. , Ansone L.

Warianty tytułu

PL

Badanie oddziaływań między kwasami huminowymi i fulerenami C60 z wykorzystaniem spektroskopii fluorescencyjnej

• Języki publikacji: EN

Abstrakty

EN

The interaction between buckminsterfullerene C60 and humic acids (HA) of different origins was compared using fluorescence spectroscopy as a function of pH, humic acid concentration, ionic strength. Binding constants between fullerene and humic acids were calculated. It can be suggested that the complexation was driven by hydrophobic interactions depending on the properties of the interacting compounds. Hydrophobic interaction model as indicated by linear Stern-Volmer plots and high Kd values is characterizing the interaction between buckminsterfullerene C60 and humic acids The results of this study support the development of understanding of the fate of nanomaterials in the environment as well as the development of analytical methods for nanomaterials in waters and wastewater treatment approaches.

PL

Porównywano oddziaływania między buckminsterfulerenami C60 i kwasami huminowymi (HA) różnego pochodzenia w zależności od pH, stęzenia kwasów huminowych i siły jonowej. Do badań stosowano spektroskopię fluorescencyjną. Obliczono stałe trwałości związków kwasów huminowymi i fulerenów. Można przypuszczać, że kompleksowanie jest powodowane oddziaływaniami hydrofobowmi, zależnymi od właściwości związków. Model interakcji hydrofobowych wskazanych przez liniowe zależności Sterna-Volmera i duże wartości Kd charakteryzują interakcje między buckminsterfulerenami C60 i kwasami huminowymi. Wyniki opisanych badań są ważne dla poznania losu nanomateriałów w środowisku, a także dla rozwoju metod analizy zawartości nanomateriałów w wodach oraz metod oczyszczania ścieków.

Słowa kluczowe

EN

humic acid; fluorescence spectroscopy; fullerene C60; binding

PL

kwasy huminowe; spektroskopia fluorescencyjna; fulereny C60; wiązanie

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. S
• Rocznik: 2010
• Tom: Vol. 17, nr 3
• Strony: 351--362
• Opis fizyczny: Bibliogr. 33 poz., rys.

Twórcy

autor

Klavins M.

autor

Ansone L.

• Department of Environmental Science, University of Latvia, Raina blvd. 19, Riga, LV 1586, Latvia,

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