Molecular aggregates of Merocyanine 540 in aqueous suspensions containing natural and CTAB-modified bentonite
Özet
The molecular interactions of MC-540 (Merocyanine 540) in clay suspensions containing natural bentonite and CTAB (cetyl trimethyl ammonium bromide)-modified bentonite were examined by using absorption, steady-state and time-resolved fluorescence spectroscopies. Strong affinity of clays for dye adsorption caused the strong interaction of MC-540 molecules with bentonite particles in aqueous dispersion. The interaction of dye with natural bentonite and CTAB-modified bentonite particles in aqueous dispersion caused significant changes in the photophysical properties of MC-540 when they were compared to those in pure water. Spectral data revealed that monomer, H-dimer and H-aggregate of MC-540 in the clay aqueous dispersions were formed depending on dye concentration. Moreover, H-aggregates of dye were predominantly formed in the CTAB-modified bentonite aqueous suspension. The presence of H-aggregates strongly decreased the fluorescence lifetime of MC-540. (C) 2014 Elsevier B.V. All rights reserved.
Anahtar kelimeler
Sürdürülebilir Kalkınma Amaçları
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SKA 6: Temiz Su ve Sıhhi Koşullar
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SKA 11: Sürdürülebilir Şehir ve Yaşam Alanları
Atıf için künye
Kaya, M., Meral, K., & Onganer, Y. (2015). Molecular aggregates of Merocyanine 540 in aqueous suspensions containing natural and CTAB-modified bentonite. Journal of Molecular Structure, 101–105. https://doi.org/10.1016/j.molstruc.2014.11.046
BibTeX
@article{kaya2015-69826,
author = {Kaya, Mehmet and Meral, Kadem and Onganer, Yavuz},
title = {Molecular aggregates of Merocyanine 540 in aqueous suspensions containing natural and CTAB-modified bentonite},
journal = {Journal of Molecular Structure},
year = {2015},
pages = {101--105},
issn = {0022-2860},
doi = {10.1016/j.molstruc.2014.11.046},
url = {https://akademik.atauni.edu.tr/yayinlar/69826-molecular-aggregates-of-merocyanine-540-in-aqueous-suspensions-containing}
}