An apparatus for real-time in-situ monitoring of electrochemical advanced oxidation processes using visible spectrophotometry has been developed. Central to the design is a 3D-printed sleeve that interfaces commercially available and units. Using anodic Acid Orange 7 as test bed, used probing impact varying electrode composition, current density, electrolyte concentration, stirring speed on rat...

Fluorescence and phosphorescence are photon emission processes that occur during molecular relaxation from electronic excited states. These photonic processes involve transitions between electronic and vibrational states of polyatomic fluorescent molecules (fluorophores). The Jablonski diagram (Figure 1) offers a convenient representation of the excited state structure and the relevant transiti...

Graphene-carbon nitride can be synthesized from thiourea in a single step at temperature of four hours rate 2.3 ℃/min. was characterized by Fourier-transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX), scanning electron microscopy, and spectrophotometry (UV-VIS). found to consist triazine heptazine structures, carbon, nitrogen. The weight percentage carbon the atomic a...

A blue-LED-driven two-liquid-phase system has been set up for the in situ activation of horseradish peroxidase avoiding use hydrogen peroxide and drawbacks related to enzyme denaturation undesired radical side-reactions. The photobiocatalytic was applied oxidative coupling natural synthetic coumarins bicoumarins, allowing obtain homodimers only one step, tedious protecting groups. Two C-2 symme...

Four new azo-dyes, 3-phenyl azopentane-2,4-dion (LA), 3-(4-nitro phenyl azo)-pentane-2,4-dion (LP), 3-(2-nitro phenyl azo)-pentane-2,4-dion (LO) and 4-(1-acetyle-2-oxo-propyl azo)-benzene sulfonate sodium (LS), were synthesized from, aniline, 4-nitroaniline, 2-nitroaniline and sulfanilic acid with acetylacetone, respectively. Reaction of these new dyes with acetate salts of copper(II), nickel(I...