Phthalocyanine blue in aqueous solutions

Staniford, Mark; Lezhnina, Marina M.; Kynast, Ulrich

doi:10.1039/c4ra11139g

Cited by 21 publications

(12 citation statements)

References 27 publications

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] Phthalocyanines constitute a class of organic chromophores that bear a close resemblance to the naturally occurring porphyrin molecules, which are employed in nature itself as the key components of photosynthetic complexes in plants and photosynthetic bacteria. 15,16 Both porphyrins and phthalocyanines are remarkable for their high molar extinction coefficient, 17,18 which is a prerequisite for efficient solar energy harvesting. For these reasons, phthalocyanines and their derivatives have been attracting continuous interest as potential template chromophores that could be used in OPV materials.…”

Section: Introductionmentioning

confidence: 99%

Charge transfer dynamics at the boron subphthalocyanine chloride/C₆₀ interface: non-adiabatic dynamics study with Libra-X

Sato

Pradhan

Asahi

et al. 2018

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Charge transfer dynamics at the boron subphthalocyanine chloride/C₆₀ interface: non-adiabatic dynamics study with Libra-X

Sato

Pradhan

Asahi

et al. 2018

Phys. Chem. Chem. Phys.

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“…Some neutral organic dyes, especially those with larger molecules, are insoluble in water. Using an aqueous colloid of clay minerals, the solubilization of insoluble phthalocyanines was achieved, ending with the successful adsorption of dye molecules (Staniford et al, 2015). Dye anions are repelled from surfaces with negative charge, but are adsorbed efficiently by compounds with positively charged particles, such as layered double hydroxides.…”

Section: Dy E a D S O R P T I O Nmentioning

confidence: 99%

Hybrid systems based on organic dyes and clay minerals: Fundamentals and potential applications

Bujdák

2015

Clay miner.

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This review summarizes several aspects of the interactions between organic dyes and clay minerals, and presents some interesting properties of hybrid materials based on these components. It explains the basic phenomena and photophysical properties of dye/clay mineral hybrid systems (DCHS) while examining the role of clay minerals in them. A brief history of using dyes as tools for clay research and on traditional materials based on DCHS is presented. Metachromasy, the phenomenon of colour change related to the formation of dye molecular aggregates is described in detail and analysed from various perspectives. The properties of DCHS, including photoactivity, luminescence, photocatalytic properties, optical anisotropy and non-linear optical properties are analysed in detail. Clay minerals often play a significant role in the occurrence of specific photophysical phenomena such as resonance energy transfer and luminescence quenching and may influence various reactions, such as conformational changes in dye molecules, photochromism, photoisomerization, photosensitization and other photochemical processes. Routes to synthesize various types of hybrid materials are also described here. The relevance of DCHS for clay research, chemistry and materials science is summarized briefly.

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“…Blue pigments such as ultramarine blue, Prussian blue, and phthalocyanine blue are widely used in printing inks, cosmetics, paints, plastics, and other color applications . However, exposure to acids and reduction by other chemicals can cause fading of these blue pigments .…”

Section: Introductionmentioning

confidence: 99%

Solid‐state synthesis and characterization of cobalt blue core‐shell pigment particles

et al. 2018

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Cobalt blue is one of the most chemically and thermally stable blue pigments. However, cobalt is scarce and expensive. To minimize the use of cobalt and reduce production costs and toxicity, cobalt blue core‐shell pigments were synthesized by a solid‐state method, which is cheaper than a liquid‐phase reaction. Small cobalt hydroxide particles and large α‐alumina particles, in various ratios, were used as the starting materials. The dry mixed powders were calcined at 1200°C for 2 hours. Elemental mappings of the surfaces and cross sections of the synthesized particles showed that the cobalt blue had a core‐shell structure. X‐ray diffraction patterns showed that the synthesized cobalt blue consisted of an α‐alumina core and a cobalt aluminate shell. The color tone of the synthesized cobalt blue was evaluated from the lightness (L*) and chroma (C*) values. The color tone of the cobalt blue synthesized in this study was almost same as those of commercially available samples although the cobalt molar fraction was lower than the stoichiometric ratio (Co/(Co + Al) = 0.33, Co/Al = 0.5) which was calculated from the chemical reaction formula.

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Phthalocyanine blue in aqueous solutions

Abstract: Natively insoluble, unsubstituted Cu(II) phthalocyanines can be solubilised in water by the aid of nano-clays as colloidal α-CuPc and monomeric CuPc.

Cited by 21 publications

References 27 publications

Charge transfer dynamics at the boron subphthalocyanine chloride/C₆₀ interface: non-adiabatic dynamics study with Libra-X

Charge transfer dynamics at the boron subphthalocyanine chloride/C₆₀ interface: non-adiabatic dynamics study with Libra-X

Hybrid systems based on organic dyes and clay minerals: Fundamentals and potential applications

Solid‐state synthesis and characterization of cobalt blue core‐shell pigment particles

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Phthalocyanine blue in aqueous solutions

Abstract: Natively insoluble, unsubstituted Cu(II) phthalocyanines can be solubilised in water by the aid of nano-clays as colloidal α-CuPc and monomeric CuPc.

Cited by 21 publications

References 27 publications

Charge transfer dynamics at the boron subphthalocyanine chloride/C60 interface: non-adiabatic dynamics study with Libra-X

Charge transfer dynamics at the boron subphthalocyanine chloride/C60 interface: non-adiabatic dynamics study with Libra-X

Hybrid systems based on organic dyes and clay minerals: Fundamentals and potential applications

Solid‐state synthesis and characterization of cobalt blue core‐shell pigment particles

Contact Info

Product

Resources

About

Charge transfer dynamics at the boron subphthalocyanine chloride/C₆₀ interface: non-adiabatic dynamics study with Libra-X

Charge transfer dynamics at the boron subphthalocyanine chloride/C₆₀ interface: non-adiabatic dynamics study with Libra-X