Facile, template-free synthesis of silver nanodendrites with high catalytic activity for the reduction of p-nitrophenol

Zhang, Wei; Tan, Fatang; Wang, Wei; Qiu, Xiaolin; Qiao, Xueliang; Chen, Jianguo

doi:10.1016/j.jhazmat.2012.01.056

Cited by 65 publications

(66 citation statements)

References 48 publications

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“…The factors such as the concentration of silver ions and reaction time have significant influence on Ag nanostructures. Low concentration of AgNO 3 could lead to incomplete morphologies of Ag nanostructures, and higher concentration of Ag + would promote the growth of nano-silver particles [39]. With increasing the reaction time, the size of Ag nanoparticles increased and the structures of Ag dendrites became clearer.…”

Section: Ag Dendrites Fabrication Via Direct Growthmentioning

confidence: 99%

Insight into the fabrication and perspective of dendritic Ag nanostructures

Cai

et al. 2017

Journal of Experimental Nanoscience

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This article reviews recent advances in the shape-controlled synthesis routes of hierarchical Ag dendritic nanostructures. Various fabricated techniques, with or without templates or surfactants, electrochemical method and sonochemical, microwave or photochemical assisted synthesis method, can be amazingly effective in the dendritic Ag nanostructures synthesis, if synthetic parameters are carefully selected. The involved synthesis mechanism are discussed in order to control the limited factors along the fabricated progress efficiently and then to find new synthetic means. Also, the blemish of the above synthesis routes that hinders the practical application is pointed out to inspire the future research.

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Section: Ag Dendrites Fabrication Via Direct Growthmentioning

confidence: 99%

Insight into the fabrication and perspective of dendritic Ag nanostructures

Cai

et al. 2017

Journal of Experimental Nanoscience

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“…Figure 10d showed that the rate of reduction for S1 and S3 samples was higher than for S2 sample. It is well known that, as the particle size gets smaller the available catalyst surface for electron relay will definitely decrease, leading to significant increase in the degradation rate [23,24].…”

Section: Catalytic Activity Of Different Morphological Agnps Structurmentioning

confidence: 99%

Structural and morphological study of gamma‐irradiation synthesized silver nanoparticles

2015

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Silver nanostructured particles with controlled size, shape, and morphology were achieved by gamma irradiation of aqueous solution containing AgNO3, ploy (vinyl pyrrolidone), (PVP) or mixture of PVP and ploy (vinyl alcohol), (PVA). The reaction condition parameters such as solvent content, polymer type and irradiation dose were investigated. The physico‐chemical properties and morphological structures of the as‐prepared sliver nanostructures were characterized using UV/VIS spectroscopy, TEM, XRD, and Fourier transform infrared spectroscopy (FTIR) spectroscopy. Hexagonal and nanorods structures of sliver nanoparticles having single surface plasmon resonance peak and triangular (nanoprism) nanoparticles having different surface plasmon resonance peak were obtained. The XRD patterns of the as‐prepared silver nanostructure show four diffraction peaks at 2θ of 38.4°, 44.5°, 64.6°, and 77.6° of the face‐centered cubic structure silver nanoparticles. FTIR measurements indicated that the sliver nanoparticles were coordinated through the functional groups of PVA and/or PVP. POLYM. COMPOS., 38:2687–2694, 2017. © 2015 Society of Plastics Engineers

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“…Catalytic efficient of obtained catalysts are studied by examination of initial concentration of 4-NP and NaBH 4 aqueous solution. The most of the previous reports were done at 4-NP concentration maximum at 30 ppm [32][33][34][35][36][37][38]. While in this work catalytic activity of obtained catalysts were tested on reduction of 4-NP initial concentration at ranges of 50-200 ppm.…”

Section: Reduction Of 4-np To 4-apmentioning

confidence: 99%

Effect of preparation temperature and ions doping on size, morphology and catalytic activity of Co-B amorphous nano catalyst

Loghmani¹,

Shojaei²

2015

Bull. Chem. Soc. Eth.

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ABSTRACT. Binary and quaternary amorphous nano powders are prepared by wet reduction method. Cobalt boride nano catalyst is synthesized at 10 and 60 ºC. Effect of preparation temperature on size and morphology was studied. Co-M-Zr-B (M: Cr, Mo and W) as quaternary catalysts are also prepared in order to studying ions doping on chemical and physical properties. Indeed, the obtained materials are characterized by XRD, FE-SEM, TEM, BET and ICP techniques. No distinct peak could be observed in XRD patterns indicating that the all catalysts possessed amorphous. The catalytic activity of the synthesized catalysts is investigated for the reduction reaction of 4-nitrophenol to 4-aminophenol in the presence of excess NaBH4 in aqueous medium at room temperature (298 K). It is found that our catalysts are highly active for high concentrations of 4-NP, 25-200 ppm.

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Facile, template-free synthesis of silver nanodendrites with high catalytic activity for the reduction of p-nitrophenol

Cited by 65 publications

References 48 publications

Insight into the fabrication and perspective of dendritic Ag nanostructures

Insight into the fabrication and perspective of dendritic Ag nanostructures

Structural and morphological study of gamma‐irradiation synthesized silver nanoparticles

Effect of preparation temperature and ions doping on size, morphology and catalytic activity of Co-B amorphous nano catalyst

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