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A new way to enhance the performance of a microbial fuel cell (MFC) using photoelectricity was studied. The effect of light irradiation on the photoelectricity performance of a MFC with CuO nanowire-arrayed photocathode was investigated. The MFC produced a maximum power density of 46.44mWm −2 under light irradiation, 125% increase compared to 36.99mWm −2 in the dark. The open circuit...
The investigations on modulated photophysics and photostability of proton congener of coumarin 1 dye (C1-NH + ) upon inclusion with the macrocyclic host cucurbit[7]uril (CB[7]) were carried out. The higher solubility, binding constant and tighter inclusion geometry of the C1-NH + @CB[7] complex were confirmed than that of the complex of parent neutral coumarin 1(C1-N) molecule by absorption,...
First it was found that the divalent Sm 2+ ion can act as enhancer and emitter of a liquid-phase chemiluminescence (СL) on the example of the near-infrared emission of Sm 2+* in the system SmCl 3 ·6H 2 O–THF–Bu i2 AlH–O 2 . The Sm 2+* –CL (λ max =780±20nm) occurs upon adding the diisobutylaluminum hydride Bu i2 AlH to...
Photochromism based on reversible proton transfer between metastable-state photoacids and acidochromic dyes is studied. Metastable-state photoacids reversibly produce a large proton concentration under moderate irradiation, protonate the acidochromic dyes and induce color change. This mechanism is different from that of conventional photochromic materials based on photoinduced structural change. The...
Two novel phthalonitriles,7-(2,3-dicyanophenoxy)-3-(3,5-difluorophenyl) coumarin (2), 7-(3,4-dicyanophenoxy)-3-(3,5-difluorophenyl) coumarin (3), and corresponding zinc(II)-, indium(III) phthalocyanines were prepared. Additionally, photophysical (fluorescence quantum yields and lifetimes), photochemical (singlet oxygen generation and photodegradation under light irradiation) and spectral properties...
A new chiral and multichromophoric macromolecular system based on a perylene diimide chromophore consisting of two 1,4-bis(3-aminopropyl) piperazine linkers and two terminal chiral naphthalene bisimide chromophores has been synthesized. All of the chromophoric units are not π-conjugated with each other and could behave independently due to the presence of the nonconjugated linker. A new symmetrical...
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