J
J. Cenens
Researcher at Katholieke Universiteit Leuven
Publications - 7
Citations - 379
J. Cenens is an academic researcher from Katholieke Universiteit Leuven. The author has contributed to research in topics: Absorption spectroscopy & Proflavine. The author has an hindex of 6, co-authored 7 publications receiving 360 citations.
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Journal ArticleDOI
Visible spectroscopy of methylene blue on hectorite, laponite B, and barasym in aqueous suspension
J. Cenens,Robert A. Schoonheydt +1 more
TL;DR: The absorption spectra of methylene blue ion exchanged on hectorite, Laponite B, Barasym, or sepiolite in dilute aqueous suspensions show the presence of the monomer, the protonated monomer and trimer as discussed by the authors.
Journal ArticleDOI
Spectroscopy of proflavine adsorbed on clays
TL;DR: In this article, the ion exchange of monoprotonated proflavine on Wyoming bentonite, Camp Berteau montmorillonite, and a synthetic mica-type montmorphite, Barasym SSM-100, has been investigated.
Journal ArticleDOI
Tryptophan photo-oxidation by clay- adsorbed sensitizers
J. Cenens,Robert A. Schoonheydt +1 more
TL;DR: Turro et al. as discussed by the authors showed that the photo-oxidation of tryptophan (TRP), photosensitized by methylene blue (MB) exchanged on hectorite, Wyoming bentonite and laponite is strongly influenced by three factors: (i) Fe(III) in the structure, which quenches the excited state of MB; (ii) the adsorption site of MB, as photooxidation only takes place with MB on the external surface; (iii) dye aggregation, which reduces the yield.