In Situ ESR and UV/Vis Spectroelectrochemical Study of Eosin Y Upon Reduction with and without Zn(II) Ions

Goux, A.; Pauporté, Th.; Lincot, Daniel; Dunsch, Lothar

doi:10.1002/cphc.200700009

Cited by 22 publications

(33 citation statements)

References 31 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the presence of Zn 2+ , this signal of the anion radical completely vanished and the number of electron changed to two, ending up with a product complex of (EY 4À )(Zn 2+ ) 2 which was strongly stabilized against reoxidation. Subsequent to our previous communication [13], Goux et al have performed similar experiments and succeeded to confirm the conclusions [14]. In addition they carried out in situ electron spin resonance (ESR) spectroscopy and mass spectroscopic (MS) analysis of the product, confirming a singly reduced semiquinone radical in the absence of Zn 2+ and a complex between reduced eosin Y and Zn 2+ in its presence, respectively.…”

Section: Introductionsupporting

confidence: 54%

“…Goux et al elucidated from their in situ ESR study that the resultant species was a semiquinone radical [14], so that these reactions are expressed as: …”

Section: Redox Reaction Of Eosin Y In Alkaline Solutionmentioning

confidence: 99%

“…Electrochemical reduction of EY 2À to its trianion radical can only be observed in highly alkaline solutions [6,13,14]. A set of spectroelectrochemical data for EY 2À aqueous solution at pH 12.6 measured at an OTTLE is shown in Fig.…”

Section: Redox Reaction Of Eosin Y In Alkaline Solutionmentioning

confidence: 99%

See 2 more Smart Citations

Spectroelectrochemical studies on redox reactions of eosin Y and its polymerization with Zn2+ ions

Zhang

Sun

Yoshida

2011

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

Section: Introductionsupporting

confidence: 54%

“…Goux et al elucidated from their in situ ESR study that the resultant species was a semiquinone radical [14], so that these reactions are expressed as: …”

Section: Redox Reaction Of Eosin Y In Alkaline Solutionmentioning

confidence: 99%

See 1 more Smart Citation

Spectroelectrochemical studies on redox reactions of eosin Y and its polymerization with Zn2+ ions

Zhang

Sun

Yoshida

2011

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

“…Both films, those deposited with eosin Y, as well as those deposited with C343, give a single crystalline porous structure after desorption of the dye, although with opposite crystallographic orientations [129]. This is seen in the diffractograms shown in Figure 11.4.…”

Section: Dye Molecules As Structure-directing Additivesmentioning

confidence: 56%

“…In addition, complex formation with the Zn 2þ also seems to promote the formation of dye aggregates by formation of a polymeric structure, which can then act as template for the pores [128]. Details on eosin Y reduction and complex formation with Zn 2þ were reported by Goux et al [129]. Without reduction, eosin Y is present in aqueous solution as the EY 2À ion.…”

Section: Dye Molecules As Structure-directing Additivesmentioning

confidence: 99%

Electrodeposition of Nanostructured ZnO Films and Their Photoelectrochemical Properties

Oekermann

On Solar Hydrogen &Amp; Nanotechnology

View full text Add to dashboard Cite

Multifunctional Nanohybrid of Palladium Nanoparticles Encapsulated by Carbon‐Dots for Exploiting Synergetic Applications

Dhenadhayalan

Hsin

Lin

2019

Adv Materials Inter

View full text Add to dashboard Cite

and textile. [2,7] It can be readily bound to biomolecules and consequently used as a strain to tissue and cells. [8] However, the application of abnormal level of EY becomes toxic and unfriendly to both the environment and living things. The development of reduction/degradation of nitro compound and dye is thus much needed to convert these materials into harmless products. For instance, the 4-NP and EY could be catalytically reduced into the formation of 4-aminophenol and reduced form of EY, respectively, and believe that this process could become potentially an effective way to treat 4-NP and EY in polluted water. Accordingly, the design and development of proficient catalyst are a significant task for the catalytic reduction of 4-NP and EY with aspects of the efficient and fast process. The nanomaterial-based catalysts are enormously developed for their superior catalytic performance in the reduction of pollutants. [9][10][11][12][13] In general, metal nanoparticles are usually adopted for the catalysis application; especially palladium nanoparticles (Pd NPs) exhibited excellent catalytic activities. [14][15][16] Such metal nanoparticles play a vital role in the catalytic reduction showing effective performance compared to other bare nanomaterials. In order to further improve their catalytic activity, the metal nanoparticles were incorporated with diverse nanomaterials including carbon-based materials, transition metal dichalcogenides (TMD), and porous organic cages. [17][18][19][20][21][22][23][24][25] Compared to other fluorescent nanomaterials, the C-dots can be easily synthesized from different kind of sources including organic molecules, biowastes, proteins, amino acids, and so on. [26][27][28][29][30][31][32] Moreover, the surface of C-dots can be modified with several capping agents to improve their fluorescence properties according to the applications. [33][34][35][36][37] That's why the C-dots have been extensively utilized in the fields of chemo-and biosensors, and optoelectronic applications. Thus far, the C-dots are much less utilized in the catalysis as in the sensing application. By taking advantage of C-dots and Pd NPs, this work aims to develop a superior multifunctional nanohybrid in the multiple applications including chemical sensor and catalysis.With this intention, we have synthesized carbon-dots to encapsulate palladium nanoparticles (Pd/C-dots) by the photochemical method. Prior to the synthesis of Pd/C-dots, Palladium nanoparticles encapsulated in the carbon dots (Pd/C-dots) are demonstrated to play a role of multifunctional nanohybrid in the synergetic applications of sensor and catalysis. The photochemical method is applied to synthesize Pd/C-dots in which Pd nanoparticles (NPs) are dispersedly encapsulated by C-dots layer. The nanohybrid can function as a fluorescent sensor and reductive catalyst, due to the inherent properties of C-dots and Pd NPs, respectively. The Pd/C-dots exhibit a highly selective and sensitive detection toward the nickel (Ni 2+ ) ion with a detection limit of ...

show abstract

In Situ ESR and UV/Vis Spectroelectrochemical Study of Eosin Y Upon Reduction with and without Zn(II) Ions

Cited by 22 publications

References 31 publications

Spectroelectrochemical studies on redox reactions of eosin Y and its polymerization with Zn2+ ions

Spectroelectrochemical studies on redox reactions of eosin Y and its polymerization with Zn2+ ions

Electrodeposition of Nanostructured ZnO Films and Their Photoelectrochemical Properties

Multifunctional Nanohybrid of Palladium Nanoparticles Encapsulated by Carbon‐Dots for Exploiting Synergetic Applications

Contact Info

Product

Resources

About