Photoreduction of methylviologen sensitized by amphiphilic phthalocyanatozinc(II) complexes

Non-ionic amphiphilic zinc(II) phthalocyanine 4 with eight oxyethylene side chains exhibits excellent solubility in water and organic solvents such as benzene, chloroform, methanol, THF and DMF. The monomer–aggregate equilibrium of 4 was affected by the solvent polarity. Photoreduction of methylviologen (MV2+) in the presence of triethanolamine was also studied with the use of non-ionic complex 4 under light irradiation. The yield for the radical formation of MV2+ was greatly increased by the addition of dimethylsulfoxide (DMSO) and cetyltrimethylammonium chloride (CTAC) in aqueous solution.

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The role of solvent polarity in the free energy of transfer of amino acid side chains from water to organic solvents.

Journal of Biological Chemistry ◽

10.1016/s0021-9258(17)38377-1 ◽

1986 ◽

Vol 261 (16) ◽

pp. 7220-7222

Author(s):

S Damodaran ◽

K B Song

Keyword(s):

Free Energy ◽

Amino Acid ◽

Organic Solvents ◽

Solvent Polarity ◽

Side Chains ◽

Amino Acid Side Chains ◽

Free Energy Of Transfer ◽

Energy Of Transfer ◽

Role Of Solvent

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Immobilization of ZnO Suspension on Glass Substrate to Remove Filtration During the Removal of Remazol Red R from Aqueous Solution

JOURNAL OF ADVANCES IN CHEMISTRY ◽

10.24297/jac.v12i6.6990 ◽

2016 ◽

Vol 12 (6) ◽

pp. 4127-4133

Author(s):

Nazmul Kayes ◽

Jalil Miah ◽

Md. Obaidullah ◽

Akter Hossain ◽

Mufazzal Hossain

Keyword(s):

Aqueous Solution ◽

Glass Substrate ◽

Uv Light ◽

Aqueous Suspension ◽

Light Irradiation ◽

Zno Films ◽

Light Sources ◽

Zno Film ◽

Semiconductor Oxides ◽

Remazol Red

Photodegradation of textile dyes in the presence of an aqueous suspension of semiconductor oxides has been of growing interest. Although this method of destruction of dyes is efficient, the main obstacle of applying this technique in the industry is the time and cost involving separation of oxides from an aqueous suspension. In this research, an attempted was made to develop ZnO films on a glass substrate by simple immobilization method for the adsorption and photodegradation of a typical dye, Remazol Red R (RRR) from aqueous solution. Adsorption and photodegradation of RRR were performed in the presence of glass supported ZnO film. Photodegradation of the dye was carried out by varying different parameters such as the catalyst dosage, initial concentrations of RRR, and light sources. The percentage of adsorption as well as photodegradation increased with the amount of ZnO, reaches a maximum and then decreased. Maximum degradation has been found under solar light irradiation as compared to UV-light irradiation. Removal efficiency was also found to be influenced by the pre-sonication of ZnO suspension.

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Exfoliation of graphite into graphene in aqueous solution: an application as graphene/TiO2 nanocomposite to improve visible light photocatalytic activity

RSC Advances ◽

10.1039/c6ra07617c ◽

2016 ◽

Vol 6 (95) ◽

pp. 93048-93055 ◽

Cited By ~ 16

Author(s):

R. Giovannetti ◽

E. Rommozzi ◽

M. Zannotti ◽

C. A. D'Amato ◽

S. Ferraro ◽

...

Keyword(s):

Aqueous Solution ◽

Photocatalytic Activity ◽

Liquid Phase ◽

Visible Light ◽

Visible Light Irradiation ◽

Light Irradiation ◽

Visible Light Photocatalytic Activity ◽

Positive Effects ◽

Graphene Dispersion ◽

Visible Light Photocatalytic

Graphene dispersion (GR) was prepared by liquid-phase sonication of graphite and evaluated by XRD, DLS and UV-Vis analysis. It was used to prepare PP@mgGR–TiO2, showing positive effects on ARS photodegradation under visible light irradiation.

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Reverse vesicles as a new system for studying enzymes in organic solvents

Biochemical Journal ◽

10.1042/bj2850373 ◽

1992 ◽

Vol 285 (2) ◽

pp. 373-376 ◽

Cited By ~ 10

Author(s):

A Sánchez-Ferrer ◽

F García-Carmona

Keyword(s):

Aqueous Solution ◽

Organic Solvents ◽

Reverse Micelles ◽

Active Form ◽

Ionic Surfactant ◽

New Approach ◽

Optically Transparent ◽

Reverse Vesicles ◽

Dodecyl Ether ◽

New System

A new approach to the study of enzyme activity in organic solvents has been developed by using optically transparent reverse vesicles. Polyphenol oxidase was incorporated in an active form into the above ternary system formed by the non-ionic surfactant tetra(ethylene glycol) dodecyl ether/n-dodecane/water. The enzyme in this microenvironment, surprisingly, showed an apparent positive co-operativity which has never before been described either in aqueous solution or in reverse micelles. In addition, the Vmax. expressed was similar to that in water and twice that displayed in reverse micelles.

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SiO2@Ag/AgCl: a low-cost and highly efficient plasmonic photocatalyst for degrading rhodamine B under visible light irradiation

RSC Advances ◽

10.1039/c4ra10843d ◽

2014 ◽

Vol 4 (110) ◽

pp. 64747-64755 ◽

Cited By ~ 12

Author(s):

Xuefeng Xu ◽

Man Wang ◽

Yanyan Pei ◽

Changchun Ai ◽

Liangjie Yuan

Keyword(s):

Aqueous Solution ◽

Visible Light ◽

Visible Light Irradiation ◽

Rhodamine B ◽

Photocatalytic Performance ◽

Low Cost ◽

Light Irradiation ◽

Nano Structure ◽

Plasmonic Photocatalyst ◽

Highly Efficient

The micro/nano-structure composite SiO2@Ag/AgCl was employed as a low cost photocatalyst for the degradation of RhB in aqueous solution under visible light irradiation, which exhibited excellent photocatalytic performance and stability.

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