Light-triggered reversible sorption of azo dyes on titanium xerogels with photo-switchable acetylacetonato anchors†
Abstract
Photo-induced reversible sorption of azo dyes on titania xerogels is observed, which is based on the photo-switchable change of the acetylacetonato anchors in the xerogels. The photoisomerization of azo compounds that regulates many gate-keeper-like host–guest interaction systems is excluded as the determinant.