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Article ; Online: Synthesis and Photophysics Characterization of Boronic Styril and Distyryl BODIPYs for Water-Based Dye-Sensitized Solar Cells.

Nastasi, Francesco / Mineo, Placido Giuseppe / Barichello, Jessica / La Ganga, Giuseppina / Di Marco, Gaetano / Calogero, Giuseppe / Cordaro, Massimiliano

Biomimetics (Basel, Switzerland)

2022 Volume 7, Issue 3

Abstract: In this study, two boronic acid BODIPYs are obtained through a microwave-assisted Knoevenagel reaction. The aim is to use them for the first time as dyes in a photosensitized solar cell (DSSC) to mimic chlorophyll photosynthesis, harvesting solar light ... ...

Abstract	In this study, two boronic acid BODIPYs are obtained through a microwave-assisted Knoevenagel reaction. The aim is to use them for the first time as dyes in a photosensitized solar cell (DSSC) to mimic chlorophyll photosynthesis, harvesting solar light and converting it into electricity. The microwave-assisted Knoevenagel reaction is a straightforward approach to extending the molecular conjugation of the dye and is applied for the first time to synthesize BODIPY's boronic acid derivatives. These derivatives have proved to be very useful for covalent deposition on titania. This work studies the photo-physical and electrochemical properties. Moreover, the photovoltaic performances of these two new dyes as sensitizers for DSSC are discussed. Experimental data show that both dyes exhibit photosensitizing activities in acetonitrile and water. In particular, in all the experiments, distyryl BODIPY was more efficient than styryl BODIPY. In this study, demonstrating the use of a natural component as a water-based electrolyte for boronic BODIPY sensitizers, we open new possibilities for the development of water-based solar cells.
Language	English
Publishing date	2022-08-11
Publishing country	Switzerland
Document type	Journal Article
ISSN	2313-7673
ISSN (online)	2313-7673
DOI	10.3390/biomimetics7030110
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Article: The Golden Fig: A Plasmonic Effect Study of Organic-Based Solar Cells.

Barichello, Jessica / Mariani, Paolo / Matteocci, Fabio / Vesce, Luigi / Reale, Andrea / Di Carlo, Aldo / Lanza, Maurizio / Di Marco, Gaetano / Polizzi, Stefano / Calogero, Giuseppe

Nanomaterials (Basel, Switzerland)

2022 Volume 12, Issue 2

Abstract: An optimization work on dye-sensitized solar cells (DSSCs) based on both artificial and natural dyes was carried out by a fine synthesis work embedding gold nanoparticles in a ... ...

Abstract	An optimization work on dye-sensitized solar cells (DSSCs) based on both artificial and natural dyes was carried out by a fine synthesis work embedding gold nanoparticles in a TiO
Language	English
Publishing date	2022-01-14
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662255-5
ISSN	2079-4991
ISSN	2079-4991
DOI	10.3390/nano12020267
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Article: A Photoelectrochemical Study of Bioinspired 2-Styryl-1-Benzopyrylium Cations on TiO

Calogero, Giuseppe / Citro, Ilaria / Calandra Sebastianella, Gioacchino / Di Marco, Gaetano / Diniz, Ana Marta / Parola, A Jorge / Pina, Fernando

Materials (Basel, Switzerland)

2019 Volume 12, Issue 24

Abstract: In the present work, five 2-styryl-1-benzopyrylium salts and their relative self-assembly processes towards ... ...

Abstract	In the present work, five 2-styryl-1-benzopyrylium salts and their relative self-assembly processes towards TiO
Language	English
Publishing date	2019-12-05
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma12244060
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Article ; Online: Absorption spectra and photovoltaic characterization of chlorophyllins as sensitizers for dye-sensitized solar cells.

Calogero, Giuseppe / Citro, Ilaria / Crupi, Cristina / Di Marco, Gaetano

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

2014 Volume 132, Page(s) 477–484

Abstract: Dye-sensitized solar cells (DSSCs) based on Chlorine-e6 (Chl-e6), a Chlorophyll a derivative, and Chl-e6 containing Cu, have been investigated by carrying out incident photon to current efficiency (IPCE) and current-voltage (I-V) measurements. The effect ...

Abstract	Dye-sensitized solar cells (DSSCs) based on Chlorine-e6 (Chl-e6), a Chlorophyll a derivative, and Chl-e6 containing Cu, have been investigated by carrying out incident photon to current efficiency (IPCE) and current-voltage (I-V) measurements. The effect of the metallic ion and the influence of the solvent polarity on the dye aggregation and their absorption bands have been analysed by performing electronic absorption measurements. The dependence of the photoelectrochemical parameters of these DSSCs on the electrolyte by the addition of pyrimidine and/or pyrrole has been discussed in details. For the first time I-V curves for a DSSC based on copper Chl-e6 dye have been shown and compared with Zn based chlorophyllin. Furthermore, the performance of a Cu-Chl-e6 based DSSC has been deeply improved by a progressive optimization of the TiO2 multilayer photoanode overcoming the best data reported in literature so far for this dye. It's worth to emphasize that, the analysis reported in this paper supplies very useful information which paves the way to further detailed studies turned to the employment of natural pigments as sensitizers for solar cells.
MeSH term(s)	Absorption, Physicochemical ; Chlorophyllides/chemistry ; Coloring Agents/chemistry ; Electricity ; Photochemistry ; Solar Energy ; Spectrum Analysis
Chemical Substances	Chlorophyllides ; Coloring Agents ; chlorophyllin (EEM82VOY7C)
Language	English
Publishing date	2014-05-16
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	210413-1
ISSN	1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
ISSN (online)	1873-3557
ISSN	0370-8322 ; 0584-8539 ; 1386-1425
DOI	10.1016/j.saa.2014.04.196
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Article ; Online: Vegetable-based dye-sensitized solar cells.

Calogero, Giuseppe / Bartolotta, Antonino / Di Marco, Gaetano / Di Carlo, Aldo / Bonaccorso, Francesco

Chemical Society reviews

2015 Volume 44, Issue 10, Page(s) 3244–3294

Abstract: There is currently a large effort to improve the performance of low cost renewable energy devices. Dye-sensitized solar cells (DSSCs) are emerging as one of the most promising low cost photovoltaic technologies, addressing "secure, clean and efficient ... ...

Abstract	There is currently a large effort to improve the performance of low cost renewable energy devices. Dye-sensitized solar cells (DSSCs) are emerging as one of the most promising low cost photovoltaic technologies, addressing "secure, clean and efficient solar energy conversion". Vegetable dyes, extracted from algae, flowers, fruit and leaves, can be used as sensitizers in DSSCs. Thus far, anthocyanin and betalain extracts together with selected chlorophyll derivatives are the most successful vegetable sensitizers. This review analyses recent progress in the exploitation of vegetable dyes for solar energy conversion and compares them to the properties of synthetic dyes. We provide an in-depth discussion on the main limitation of cell performance e.g. dye degradation, effective electron injection from the dye into the conduction band of semiconducting nanoparticles, such as titanium dioxide and zinc oxide, outlining future developments for the use of vegetable sensitizers in DSSCs. We also discuss the cost of vegetable dyes and how their versatility can boost the advancement of new power management solutions, especially for their integration in living environments, making the practical application of such systems economically viable. Finally, we present our view on future prospects in the development of synthetic analogues of vegetable dyes as sensitizers in DSSCs.
Language	English
Publishing date	2015-05-21
Publishing country	England
Document type	Journal Article
ZDB-ID	1472875-8
ISSN	1460-4744 ; 0306-0012
ISSN (online)	1460-4744
ISSN	0306-0012
DOI	10.1039/c4cs00309h
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Article ; Online: Brown seaweed pigment as a dye source for photoelectrochemical solar cells.

Calogero, Giuseppe / Citro, Ilaria / Di Marco, Gaetano / Armeli Minicante, Simona / Morabito, Marina / Genovese, Giuseppa

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

2014 Volume 117, Page(s) 702–706

Abstract: Chlorophylls based-dyes obtained from seaweeds represent attractive alternatives to the expensive and polluting pyridil based Ru complexes because of their abundance in nature. Another important characteristic is that the algae do not subtract either ... ...

Abstract	Chlorophylls based-dyes obtained from seaweeds represent attractive alternatives to the expensive and polluting pyridil based Ru complexes because of their abundance in nature. Another important characteristic is that the algae do not subtract either cropland or agricultural water, therefore do not conflict with agro-food sector. This pigment shows a typical intense absorption in the UV/blue (Soret band) and a less intense band in the red/near IR (Q band) spectral regions and for these reasons appear very promising as sensitizer dyes for DSSC. In the present study, we utilized chlorophylls from samples of the brown alga Undaria pinnatifida as sensitizer in DSSCs. The dye, extracted by frozen seaweeds and used without any chemical purification, showed a very good fill factor (0.69). Even the photelectrochemical parameters if compared with the existent literature are very interesting.
MeSH term(s)	Absorption ; Chlorophyll/chemistry ; Coloring Agents/chemistry ; Electrochemistry ; Photochemistry ; Seaweed/chemistry ; Solar Energy ; Spectrophotometry, Ultraviolet ; Titanium/chemistry ; Ultraviolet Rays
Chemical Substances	Coloring Agents ; Chlorophyll (1406-65-1) ; titanium dioxide (15FIX9V2JP) ; Titanium (D1JT611TNE)
Language	English
Publishing date	2014-01-03
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	210413-1
ISSN	1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
ISSN (online)	1873-3557
ISSN	0370-8322 ; 0584-8539 ; 1386-1425
DOI	10.1016/j.saa.2013.09.019
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Article: Visible-light driven oxidation of gaseous aliphatic alcohols to the corresponding carbonyls via TiO₂ sensitized by a perylene derivative

Guarisco, Chiara / Palmisano, Giovanni / Calogero, Giuseppe / Ciriminna, Rosaria / Di Marco, Gaetano / Loddo, Vittorio / Pagliaro, Mario / Parrino, Francesco

Environmental science and pollution research international. 2014 Oct., v. 21, no. 19

2014

Abstract: Sensitized P25 TiO₂ was prepared by wet impregnation with a home-prepared perylene dye, i.e., N,N′-bis(2-(1-piperazino)ethyl)-3,4,9,10-perylene-tetracarboxylic acid diimide dichloride (PZPER). Energy levels of PZPER were found to be compatible with those ...

Abstract	Sensitized P25 TiO₂ was prepared by wet impregnation with a home-prepared perylene dye, i.e., N,N′-bis(2-(1-piperazino)ethyl)-3,4,9,10-perylene-tetracarboxylic acid diimide dichloride (PZPER). Energy levels of PZPER were found to be compatible with those of TiO₂ allowing fast electron transfer. The obtained catalyst has been characterized and used in the gas-phase partial oxidation of aliphatic primary and secondary alcohols, i.e., methanol, ethanol, and 2-propanol. The reaction was carried out under cut-off (λ > 400 nm) simulated solar radiation in O₂ atmosphere. The perylene derivative allowed a good absorbance of visible radiation thanks to its low optical energy gap (2.6 eV) which was evaluated by cyclic voltammetry. The optimal organic sensitizing amount was found to be 5.6 % w/w in terms of yield in carbonyl derivatives. Moreover, no change in reactivity/selectivity was observed after 10-h irradiation thus confirming the catalyst stability. Yields into formaldehyde, acetaldehyde, and acetone were 67, 70, and 96 %, respectively. No significant amounts of organic byproducts were detected but for methanol oxidation, whereas a minor amount of the substrate degraded to CO₂.
Keywords	absorbance ; acetaldehyde ; acetone ; byproducts ; carbon dioxide ; electron transfer ; energy ; ethanol ; formaldehyde ; irradiation ; isopropyl alcohol ; methanol ; oxidation ; oxygen ; solar radiation ; titanium dioxide
Language	English
Dates of publication	2014-10
Size	p. 11135-11141.
Publishing place	Springer-Verlag
Document type	Article
ZDB-ID	1178791-0
ISSN	1614-7499 ; 0944-1344
ISSN (online)	1614-7499
ISSN	0944-1344
DOI	10.1007/s11356-014-2546-z
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Article ; Online: Production and Biotechnological Potential of Extracellular Polymeric Substances from Sponge-Associated Antarctic Bacteria.

Caruso, Consolazione / Rizzo, Carmen / Mangano, Santina / Poli, Annarita / Di Donato, Paola / Finore, Ilaria / Nicolaus, Barbara / Di Marco, Gaetano / Michaud, Luigi / Lo Giudice, Angelina

Applied and environmental microbiology

2018 Volume 84, Issue 4

Abstract: Four sponge-associated Antarctic bacteria (i.e., ...

Abstract	Four sponge-associated Antarctic bacteria (i.e.,
MeSH term(s)	Antarctic Regions ; Bacteria/drug effects ; Bacteria/genetics ; Bacteria/growth & development ; Bacteria/metabolism ; Biodegradation, Environmental ; Biofilms ; Biotechnology/methods ; Cadmium/pharmacology ; Carbohydrates/analysis ; Extracellular Polymeric Substance Matrix/chemistry ; Extracellular Polymeric Substance Matrix/drug effects ; Extracellular Polymeric Substance Matrix/metabolism ; Hydrocarbons/metabolism ; Mercury/pharmacology ; Polysaccharides, Bacterial/metabolism ; Proteins/analysis ; RNA, Ribosomal, 16S ; Sugars/pharmacology ; Surface-Active Agents ; Temperature ; Uronic Acids/analysis
Chemical Substances	Carbohydrates ; Hydrocarbons ; Polysaccharides, Bacterial ; Proteins ; RNA, Ribosomal, 16S ; Sugars ; Surface-Active Agents ; Uronic Acids ; Cadmium (00BH33GNGH) ; Mercury (FXS1BY2PGL)
Language	English
Publishing date	2018-01-31
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	223011-2
ISSN	1098-5336 ; 0099-2240
ISSN (online)	1098-5336
ISSN	0099-2240
DOI	10.1128/AEM.01624-17
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Article ; Online: Nanostructured anatase TiO2 densified at high pressure as advanced visible light photocatalysts.

Carini, Giovanni / Parrino, Francesco / Palmisano, Giovanni / Scandura, Gabriele / Citro, Ilaria / Calogero, Giuseppe / Bartolotta, Antonino / Di Marco, Gaetano

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology

2015 Volume 14, Issue 9, Page(s) 1685–1693

Abstract: This study reports on characterization and photoactivity of nanostructured TiO2 samples, which have been permanently densified under high pressures, up to 2.1 GPa. Commercial Mirkat 211 anatase has been used as a benchmark sample, in order to investigate ...

Abstract	This study reports on characterization and photoactivity of nanostructured TiO2 samples, which have been permanently densified under high pressures, up to 2.1 GPa. Commercial Mirkat 211 anatase has been used as a benchmark sample, in order to investigate the effect of unidirectional high pressure on structural, optical and photocatalytic properties of TiO2. Vibrational Raman spectroscopy shows that the treatment does not cause transitions among the different crystalline phases of titanium dioxide. UV-vis diffuse reflectance spectra reveal that increasing pressure gives rise to a shift of the absorption onset towards higher wavelength enhancing the photoactivity under visible radiation. Samples are also photo-electrochemically characterized and tested in the gas phase with partial oxidation of ethanol to acetaldehyde under visible irradiation. Compaction up to 0.8 GPa depresses both the alcohol conversion and the aldehyde yield, while samples treated under higher pressures show enhanced characteristics of conversion compared to the pristine material. Moreover, promising results in the reduction of CO2 are also obtained under UV-visible radiation.
Language	English
Publishing date	2015-09-26
Publishing country	England
Document type	Journal Article
ZDB-ID	2072584-X
ISSN	1474-9092 ; 1474-905X
ISSN (online)	1474-9092
ISSN	1474-905X
DOI	10.1039/c5pp00149h
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Article ; Online: Physico-chemical investigation of nanostructures in liquid phases: nickel chloride ionic clusters confined in sodium bis(2-ethylhexyl) sulfosuccinate reverse micelles.

Calandra, Pietro / Di Marco, Gaetano / Ruggirello, Angela / Liveri, Vincenzo Turco

Journal of colloid and interface science

2009 Volume 336, Issue 1, Page(s) 176–182

Abstract: The confinement of finite amounts of nickel chloride in the hydrophilic core of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) reverse micelles dispersed in n-heptane has been investigated by FT-IR, UV-vis-NIR and fluorescence spectroscopies. The analysis ...

Abstract	The confinement of finite amounts of nickel chloride in the hydrophilic core of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) reverse micelles dispersed in n-heptane has been investigated by FT-IR, UV-vis-NIR and fluorescence spectroscopies. The analysis of experimental data consistently leads to hypothesize that NiCl(2) forms small size ionic clusters stabilized by a monolayer of oriented surfactant molecules. Due to confinement and interfacial effects, these ionic clusters show peculiar photophysical properties, which are different from those possessed by the bulk material. From NiCl(2)/AOT/n-heptane solutions, by evaporation of the organic solvent, interesting salt/surfactant nanocomposites at various salt concentrations have been prepared and characterised by WAXS. On the other hand, after mix with Na(2)S-containing dry micellar systems, the formation of NiS nanoparticles have been ascertained by UV-vis spectroscopy.
Language	English
Publishing date	2009-08-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	241597-5
ISSN	1095-7103 ; 0021-9797
ISSN (online)	1095-7103
ISSN	0021-9797
DOI	10.1016/j.jcis.2009.03.066
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