Plasma-Assisted Synthesis of TiO2 Nanorods by Gliding Arc Discharge Processing at Atmospheric Pressure for Photocatalytic Applications

Acayanka, Elie; Tiya-Djowe, Antoine; Laminsi, Samuel; Tchoumkwé, C. C.; Nzali, Serge; Mbouopda, Albert Poupi; Ndifon, Peter T.; Gaigneaux, Éric M.

doi:10.1007/s11090-013-9455-7

Cited by 50 publications

(26 citation statements)

References 24 publications

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“…Various kinds of metal oxide NPs fabricated from the PLIs have been reported [61,[219][220][221][222][223][224][225][226][227][228][229][230][231][232][233][234]. In the following, we will give two representative results for the PLIs induced metal oxides NPs.…”

Section: Metal Oxidesmentioning

confidence: 99%

A review of plasma–liquid interactions for nanomaterial synthesis

Chen¹,

Li²,

Li³

2015

J. Phys. D: Appl. Phys.

312

225

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Over the past decades, a new branch of plasma research, the nanomaterial (NM) synthesis by plasma-liquid interactions (PLIs), is rapidly rising, mainly due to the recently developed various plasma sources operated from low to atmospheric pressures. The PLIs provide novel plasma-liquid interfaces where many physical and chemical processes take place. By exploiting these physical and chemical processes, various NMs ranging from noble metal nanoparticles to graphene nanosheets can be easily synthesized. The currently rapid development and increasingly wide utilization of the PLI method naturally lead to an urgent requirement for presenting a general review. This paper reviews the current status of research on plasma-liquid 2 interactions for nanomaterial syntheses. Focus is on the comprehensive understanding of the synthesis process and perceptive opinions on the present issues and future challenges in this subject.

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Section: Metal Oxidesmentioning

confidence: 99%

A review of plasma–liquid interactions for nanomaterial synthesis

Chen¹,

Li²,

Li³

2015

J. Phys. D: Appl. Phys.

312

225

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“…Various methods have been previously reported on the synthesis of TiO 2 nanoparticles with improved chemical and physical properties, such as the hydrothermal and one-step dynamic hydrothermal process [17,18], chemical vapor deposition (CVD) [19], physical vapor deposition (PVD) [20], electrode deposition [21], plasma-assisted synthesis [22], microwave [23], micelle and inverse micelle [24], and the sol-gel method [25]. However, most of these methods are difficult to employ in large-scale production due to the complicated procedures involved, long reaction times, high reaction temperatures, and the involvement of toxic reagents and by-products in these synthesis methods.…”

Section: Introductionmentioning

confidence: 99%

A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania

et al. 2016

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Considering the increasing demand for titania nanoparticles with controlled quality for various applications, the present work reports the up-scalable synthesis of size-controlled titanium dioxide nanocrystals with a simple and convenient thermal treatment route. Titanium dioxide nanocrystals with tetragonal structure were synthesized directly from an aqueous solution containing titanium (IV) isopropoxide as the main reactant, polyvinyl pyrrolidone (PVP) as the capping agent, and deionized water as a solvent. With the elimination of the drying process in a thermal treatment method, an attempt was made to decrease the synthesis time. The mixture directly underwent calcination to form titanium dioxide (TiO 2 ) nanocrystalline powder, which was confirmed by FT-IR, energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) analysis. The control over the size and optical properties of nanocrystals was achieved via variation in calcination temperatures. The obtained average sizes from XRD spectra and transmission electron microscopy (TEM) images showed exponential variation with increasing calcination temperature. The optical properties showed a decrease in the band gap energy with increasing calcination temperature due to the enlargement of the nanoparticle size. These results prove that direct calcination of reactant solution is a convenient thermal treatment route for the potential large-scale production of size-controlled Titania nanoparticles.

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“…As they noted, the greater the discharge power, the smaller the size of particles obtained. Acayanka et al [17] synthesized titania powders as mixtures of rutile and anatase resulting from TiCl 3 hydrolysis in a plasma discharge of a non-thermal gliding arc in humid air at atmospheric pressure. Titania particles were shaped as nanorods.…”

Section: Introductionmentioning

confidence: 99%

“…Titania particles were shaped as nanorods. Acayanka et al [17] argued that the resultant product would allow optimization of the photocatalytic properties of titania in the visible light.…”

Section: Introductionmentioning

confidence: 99%

“…The use of an electric discharge for titania powder synthesis requires the atmosphere in the discharge chamber to be controlled. As the reaction conditions are not identical in various parts of the chamber, the resultant product is characterized by a large scatter in size and by nonuniformity of its properties [16,17]. Moreover, scaling of such setups is problematic, if possible at all.…”

Section: Introductionmentioning

confidence: 99%

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An Experimental Study of the Synthesis of Ultrafine Titania Powder in Plasmachemical Flow-Type Reactor

Kartaev

Lukashov

Vashenko

et al. 2014

International Journal of Chemical Reactor Engineering

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Methods for controlling the synthesis of the submicron (including nanosized) powder of titanium dioxide (titania, TiO 2 ) in a setup with a plasmachemical flow reactor were investigated. The synthesis of titania particles from gaseous titanium tetrachloride (TiCl 4 ) in the plasmachemical reactor by the chloride method was experimentally studied. The processes of formation and growth of particles depending on the type of the plasmaforming gas, flow rates of TiCl 4 ; and the quenching gas (air), reactor length, and mean-mass temperature in the reaction zone were considered. When using nitrogen as heat-carrying gas, a new approach of titania powder synthesis based on combining of reaction zone and quenching zone has been applied. Under these nonequilibrium conditions and substantial temperature gradients, this method enabled us to synthesize reproducibly ultrafine titania powders (30-50 nm) with a high content (80-87%) of metastable anatase crystal lattice. The results reveal that the powder properties can be efficiently controlled, i.e., one setup can produce titania with a required particle size and a type of the crystal lattice: anatase (A) or rutile (R). The experimental data are found to agree well with the results of numerical calculations.

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Plasma-Assisted Synthesis of TiO2 Nanorods by Gliding Arc Discharge Processing at Atmospheric Pressure for Photocatalytic Applications

Cited by 50 publications

References 24 publications

A review of plasma–liquid interactions for nanomaterial synthesis

A review of plasma–liquid interactions for nanomaterial synthesis

A Modified Thermal Treatment Method for the Up-Scalable Synthesis of Size-Controlled Nanocrystalline Titania

An Experimental Study of the Synthesis of Ultrafine Titania Powder in Plasmachemical Flow-Type Reactor

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