Sonochemical synthesis and characterization of gold–ruthenium bimetallic nanoparticles

Kumar, Panneer Selvam Sathish; Manivel, Arumugam; Anandan, Sambandam; Zhou, Meifang; Grieser, Franz; Ashokkumar, Muthupandian

doi:10.1016/j.colsurfa.2010.01.004

Cited by 38 publications

(17 citation statements)

References 29 publications

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“…The formation of gold nanoparticles instigates after 3 min of irradiation of the precursor solution and the reaction was completed within 30 min under 42 kHz ultrasound. It is observed from the UV-vis spectroscopic analysis that the extended ultrasonic irradiation (<30 min) tends to decrease the surface plasmon resonance (SPR) absorption of the resulting gold nanoparticles [24] (data not shown).The observed decrease in the SPR absorption clearly indicates that the completion of gold nanoparticles formation. The inset of Fig.…”

Section: Characterization Of Gold and Gold Loaded Tio 2 Nanocatalystsmentioning

confidence: 60%

Sonophotocatalytic (42kHz) degradation of Simazine in the presence of Au–TiO2 nanocatalysts

Sathishkumar

Mangalaraja

Mansilla

et al. 2014

Applied Catalysis B: Environmental

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Section: Characterization Of Gold and Gold Loaded Tio 2 Nanocatalystsmentioning

confidence: 60%

Sonophotocatalytic (42kHz) degradation of Simazine in the presence of Au–TiO2 nanocatalysts

Sathishkumar

Mangalaraja

Mansilla

et al. 2014

Applied Catalysis B: Environmental

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“…The emission energy at 2.6 keV indicates the reduction of Ru ions to element of ruthenium. Similarly, sonochemical synthesis of Au-Ru bimetallic nanoparticles showed an EDX spectrum, emission energy at 2.6 keV which confirmed the presence of ruthenium metal [9].…”

Section: Uv-vis Spectroscopy and Fluorescence Analysismentioning

confidence: 83%

“…1). Similarly, the RuCl 3 absorbance peak disappeared in the same region [6,9,16]. The fluorescence emission spectra of the synthesized Ru NPs were recorded in water and the fluorescence emission peak was observed at 464 nm which is attributed to the Ru=N p bonds transition ( Fig.…”

Section: Uv-vis Spectroscopy and Fluorescence Analysismentioning

confidence: 99%

“…Ruthenium nanoparticles were used in many applications such as catalytic dehydrogenation [3], methanol fuel cells [4], synthesis of diesel fuels [5], azo dye degradation [6], removal of organic pollutants from water [7] and so on. Synthesis of Ru NPs is usually carried out by various physical and chemical methods such as microwave irradiation [6,8], sonochemical method [9], hydrothermal method [10] and electrochemical method [11]. However, most of these techniques are complex, power and time consuming, expensive, hazardous and employed by toxic chemicals.…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial activity of ruthenium nanoparticles synthesized using Gloriosa superba L. leaf extract

et al. 2014

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This work reports an ecofriendly approach for the synthesis of Ruthenium nanoparticles (Ru NPs) using aqueous leaf extract of Gloriosa superba. G. superba contains cholidonic, superbine, colchicine, gloriosol, phytosterils and stigmasterin, which are found to be responsible for the bio-reduction of Ru NPs. The synthesized Ru NPs were characterized using UV-Vis spectroscopy, Fluorescence spectra, FTIR, XRD, SEM and EDX analyses. UV-Vis spectra of the aqueous medium containing Ru NPs showed a gradual decrease of the absorbance peak observed at 494 nm. Fluorescence spectra of Ru NPs emission (k em ) exhibited at 464 nm are attributed to the Ru=N p bonds transition. The biomolecules responsible for the reduction of Ru NPs were analyzed by FTIR. XRD results confirmed the presence of Ru NPs with hexagonal crystal structure. The calculated crystallite sizes using Scherrer formula are in the range from 25 to 90 nm. Scanning electron microscopy ascertained spherical nature of the Ru NPs. The EDX analysis showed the complete elemental composition of the synthesized Ru NPs. The synthesized Ru NPs exhibited good antibacterial performance against gram-positive and gram-negative bacterial strains, which was studied using standard disc diffusion method. The synthesis of Ru NPs by this method is rapid, facile and can be used for various applications.

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“…The catalytic and electrocatalytic features of bimetallic nanoparticles derived from Au-Pd, 15,32,[37][38][39][40][41][42] Au-Ru 32, [43][44][45][46][47][48][49] or Pd-Ru [50][51][52] have been extensively studied. The catalytic and electrocatalytic features of bimetallic nanoparticles derived from Au-Pd, 15,32,[37][38][39][40][41][42] Au-Ru 32, [43][44][45][46][47][48][49] or Pd-Ru [50][51][52] have been extensively studied.…”

Section: Introductionmentioning

confidence: 99%

A porous trimetallic Au@Pd@Ru nanoparticle system: synthesis, characterisation and efficient dye degradation and removal

et al. 2015

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A facile room temperature one-pot synthesis of trimetallic porous Au@Pd@Ru nanoparticles (Au@Pd@RuNPs) has been developed. The trimetallic nanoparticles have been prepared by the successive sacrificial oxidation of cobalt nanoparticles (CoNPs). The average particle size of Au@Pd@RuNPs is 110 nm. The porous nature and the presence of Au, Pd and Ru have been confirmed via TEM, FE-SEM and EDS analyses. The trimetallic nanoparticles have shown excellent catalytic activity towards the reduction of p-nitrophenol and efficient degradation of various azo dyes. This has been further extended towards the removal of colour from waste water via the catalytic degradation of azo dyes. Moreover, the produced amine can be eliminated from the waste water via its sorption on an industrial solid waste dolochar.

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Sonochemical synthesis and characterization of gold–ruthenium bimetallic nanoparticles

Cited by 38 publications

References 29 publications

Sonophotocatalytic (42kHz) degradation of Simazine in the presence of Au–TiO2 nanocatalysts

Sonophotocatalytic (42kHz) degradation of Simazine in the presence of Au–TiO2 nanocatalysts

Antibacterial activity of ruthenium nanoparticles synthesized using Gloriosa superba L. leaf extract

A porous trimetallic Au@Pd@Ru nanoparticle system: synthesis, characterisation and efficient dye degradation and removal

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