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This paper deals with the 3-methylbutanal ((CH 3 ) 2 CHCH 2 COH) removal with the help of a nonthermal surface plasma discharge coupled with photocatalysis. The capability of this process for gas treatment was studied. A planar reactor system was developed in order to perform the effect of adding photocatalytic material in plasma surface discharge barrier dielectric (SDBD)...
The spectroscopic and the photodynamic properties of 5,10,15,20-tetrakis[3-(N-ethyl-N-methylcarbazoyl)]chlorin (TEMCC) and its analogous porphyrin (TEMCP) were investigated in N,N-dimethylformamide (DMF) and in human red blood (HRB) cells. A more intense absorption band at 650nm was obtained for TEMCC in comparison with TEMCP. Both photosensitizers showed red fluorescence emission with quantum yields...
A [Ru(bpy) 2 (dppz)] 2+ -intercalated DNA film (bpy=2,2′-bipyridine and dppz=dipyrido[3,2-a:2′,3′-c]phenazine) is successfully assembled on an indium-tin oxide (ITO) electrode modified with CdS nanoparticles, designated as Ru(II)-DNA/CdS/ITO electrode. In the present protocol, [Ru(bpy) 2 (dppz)] 2+ intercalated in the DNA film has contributed characteristic photoluminescence...
Hybrid montmorillonite-alginate beads (MABs) were prepared by the ion-gelation method from alginate and montmorillonite clay suspension dropped in a calcium chloride solution. Similarly, iron-enriched beads (Fe-MABs) were prepared using iron-exchanged montmorillonite. All beads were characterized by atomic absorption and Fourier-transform infrared spectroscopy. The efficiency of Fe-MABs as catalysts...
The present study, introduces the beneficial catalyze effects of dinuclear copper(II) complexes on the luminol chemiluminescence (CL) reaction. Two new dinuclear copper(II) complexes ([Cu 2 (L) 2 (TAE)]X 2 and [Cu 2 (L′) 2 (TAE)]X 2 ), where TAE=tetraacetylethane; L=N,N′-dibenzyl ethylenediamine and L′=N,N-dimethyl-N′-benzylethylenediamine; X=ClO ...
A novel diarylethene with a Schiff base unit was successfully synthesized and its multi-responsive photochromism could be effectively modulated by chemical and light stimuli. By the stimulation of sodium hydroxide, the absorption maximum of its closed-ring isomer showed extraordinarily large redshift of 134nm, accompanied with a notable color change from purple to green. Subsequent irradiation with...
A new fluorescent boron dipyrromethene (Bodipy) derivative 1 containing a di(2-picolyl)amine group as a binding site for Cu 2+ was synthesized and characterized. Compound 1 behaves as an “on–off” fluorescent sensor for highly selective and sensitive detection of Cu 2+ ions. The selective interaction between compound 1 and Cu 2+ leads to formation of a 1·Cu 2+ complex,...
Excitation–emission matrix (EEM) fluorescence spectral features were evaluated for the elucidation of the photocatalytic degradation of sole humic acid (HA) and HA in the presence of clay minerals. Montmorillonite (Mt) or kaolinite (Kt) was selected to represent two different types of clay minerals. EEM fluorescence signatures displayed irradiation time dependent transformation of humic-like fluorophores...
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