Nickel nanoparticle synthesis using Camellia Sinensis as reducing and capping agent: Growth mechanism and photo-catalytic activity evaluation

AbstractUpscaling of nanoparticle fabrication by sputtering into an ionic liquid is shown for the example of Cu. Long-time sputtering (24 h) into a large amount (50 mL) of the ionic liquid 1-butyl-3-methylimidazolium bis-(trifluoromethylsulfonyl)imide [Bmim][(Tf)2 N] yields an amount of approximately 1 g Cu nanoparticles (mean spherical diameter (2.6 ± 1.1) nm), stabilized in ionic liquid without agglomerations. Extraction of Cu nanoparticles from the stabilizing ionic liquid was performed with the capping agent hexadecylamine. Extracted particles could be redispersed in other solvents, thus enabling applications of sputtered nanoparticles beyond ionic liquids.

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Investigating the role of different reducing agents, molar ratios, and synthesis medium over the formation of ZnO nanostructures and their photo-catalytic activity

Journal of Materials Science ◽

10.1007/s10853-017-1587-3 ◽

2017 ◽

Vol 53 (2) ◽

pp. 1110-1122 ◽

Cited By ~ 14

Author(s):

Debika Devi Thongam ◽

Jagriti Gupta ◽

Niroj Kumar Sahu ◽

Dhirendra Bahadur

Keyword(s):

Catalytic Activity ◽

Reducing Agents ◽

Zno Nanostructures ◽

Photo Catalytic Activity ◽

Molar Ratios ◽

Synthesis Medium

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Photo-catalytic activity of BiVO4 thin-film electrodes for solar-driven water splitting

Applied Catalysis A General ◽

10.1016/j.apcata.2015.01.019 ◽

2015 ◽

Vol 504 ◽

pp. 266-271 ◽

Cited By ~ 39

Author(s):

Simelys Hernández ◽

Sitaramanjaneya Mouli Thalluri ◽

Adriano Sacco ◽

Samir Bensaid ◽

Guido Saracco ◽

...

Keyword(s):

Thin Film ◽

Catalytic Activity ◽

Water Splitting ◽

Photo Catalytic Activity ◽

Thin Film Electrodes

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A simple red-ox titrimetric method for the evaluation of photo-catalytic activity of titania based catalysts

Bulletin of Materials Science ◽

10.1007/bf02706761 ◽

2003 ◽

Vol 26 (7) ◽

pp. 667-671 ◽

Cited By ~ 4

Author(s):

Y. S. Satpute ◽

S. A. Borkar ◽

S. R. Dharwadkar

Keyword(s):

Catalytic Activity ◽

Photo Catalytic Activity ◽

Titrimetric Method

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PHOTO-CATALYTIC ACTIVITY AND PHOTO-ABSORPTION OF PLASMA-SPRAYED NANO-STRUCTURED TiO2 COATINGS

International Journal of Modern Physics B ◽

10.1142/s021797921005483x ◽

2010 ◽

Vol 24 (31) ◽

pp. 6115-6127 ◽

Cited By ~ 1

Author(s):

MARYAMOSSADAT BOZORGTABAR ◽

MEHDI SALEHI ◽

MOHAMMADREZA RAHIMIPOUR ◽

MOHAMMADREZA JAFARPOUR

Keyword(s):

Catalytic Activity ◽

Flow Rate ◽

Test Chamber ◽

Catalytic Efficiency ◽

Surface Characteristics ◽

Catalytic Performance ◽

Atmospheric Plasma ◽

Argon Flow Rate ◽

Photo Catalytic Activity ◽

Argon Flow

Titanium dioxide coatings were deposited by utilizing atmospheric plasma-spraying system. The agglomerated P25/20 nano-powder and different spraying parameters (e.g., Argon flow rate and spray distance) were used to determine their influences on the microstructure, crystalline structure, photo-absorption, and photo-catalytic performance of the coatings. The microstructure and phases of as-sprayed TiO 2 coatings were characterized by scanning electron microscope SEM and X-ray diffraction, respectively. Surface characteristics were investigated by Fourier Transform Infrared. Photo-catalytic efficiency of the elaborated samples was also determined in an environmental test chamber set-up and evaluated from the conversion rate of ethanol. The photo-absorption was determined by UV–Vis spectrophotometer. The as-sprayed TiO2 coating was photo-catalytically reactive for the degradation of ethanol. The photo-catalytic activity was influenced by spray conditions. It is found that the photo-catalytic activity is significantly influenced by anatase content, surface area, and surface state. The results showed that the argon flow rate has an influence on the microstructure, anatase content, and photo-catalytic activity of the TiO 2 coatings.

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