Showing papers in "Advanced Powder Technology in 2013"

TL;DR: A green synthesis method for the preparation of mesoporous α-Fe 2 O 3 nanoparticles has been developed using the extract of green tea ( camellia sinensis ) leaves as discussed by the authors.

TL;DR: In this paper, the effect of a magnetic field on natural convection in a half-annulus enclosure with one wall under constant heat flux using control volume based finite element method was investigated.

TL;DR: Using zinc nitrate as a precursor and NaOH starch as a stabilizing agent, hexagonal zinc oxide (ZnO) nanoparticles has been synthesized by precipitation method.

TL;DR: In this article, nearly monodispersed α-Fe 2 O 3, γ-Fe 3 and Fe 3 O 4 nanoparticles were synthesized on an large scale of about 60 grams in a single reaction through a low temperature sol-gel route.

TL;DR: In this paper, starch was used as a stabilizer to control the mobility of zinc cations and then control the growth of the ZnO-NPs, and the results showed that starch is a suitable stabilizer in the sol-gel technique.

TL;DR: In this article, an overview of current research activities on the synthesis and applications of magnetic nanocomposites, especially highlights their potential environmental remediations such as heavy metal (Cr, As, Pd, Hg) removal.

TL;DR: In this article, a comprehensive three-dimensional numerical model has been developed to simulate the coal gasification in a fluidized bed gasifier, based on the multiphase particle-in-cell (MP-PIC) model, which uses an Eulerian method for fluid phase and a discrete particle method for particle phase.

TL;DR: In this paper, the compressive strengths of fly ash geopolymer with microwave radiation followed by conventional heat curing were comparable to those of the control cured at 65°C for 24h.

TL;DR: A novel titanium dioxide nanocarrier was synthesized for targeted delivery of the anticancer drug, paclitaxel, by grafting folic acid (FA) onto the PEGylated titanium dioxide nanoparticles, which possessed a considerably higher adsorption capability.

TL;DR: In this paper, the photocatalytic properties of the SrWO 4 microcrystals were investigated for the degradation of rhodamine B (RhB) and Rhodamine 6G (Rh6G) dyes under ultraviolet-light.

TL;DR: Using diammonium phosphate, calcium nitrate tetrahydrate and sodium bicarbonate as raw materials, hydroxyapatite (HAP) was facilely synthesized by solid-state reaction at room temperature.

TL;DR: In this paper, a new foam preparation system and application method has been proposed and the dust suppression effect of foam has been assessed by dust concentration measurements taken at two points next to the roadheader operator in the previously mentioned underground coal mine.

TL;DR: In this paper, the effects of the initial Zn 2+ concentrations on the structure and surface morphology and topography of the prepared ZnO thin films were investigated using various techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy, and TEM.

TL;DR: In this paper, the physical values of fluid and particle phases are determined in separated grids and the proposed procedure allows the variation of the fluid grid resolution independent of the particle size and consequently improves the calculation accuracy.

TL;DR: Results clearly show the qualitative validity of the PBM as a tool to capture the dynamics of the process that affect API composition, RSD and RTD and the developed model can be used effectively in control and optimization of the mixing process.

TL;DR: In this article, the results showed that crystallization time was a crucial factor for the final products, well-shaped crystals could be obtained at the crystallisation time of 72h.

TL;DR: In this paper, a mixture of orthorhombic La 2 (CO 3 ) 2 (OH) 2 and amorphous Fe 2 O 3 ⋅ 1.5H 2 O was calcined at 900°C in air for 2.5h.

TL;DR: A twofold increase in bioavailability with SLN formulations confer their potential for improved oral delivery of RXH, and in situ perfusion studies in rat intestine reveal the potential of SLN for enhanced permeation of raloxifene HCl across gastrointestinal barrier.

TL;DR: In this paper, the results obtained from thermal gravimetric/differential thermal analysis (TG/DTA) revealed that the silica layer formed by the electrochemical method was stable and could serve as a protective layer.

TL;DR: In this article, perovskite-type terbium orthoferrite (TbFeO 3 ) nanopowder was synthesized through a polyacrylamide gel route.

TL;DR: In this paper, a simple and rapid route to large-scale synthesis of nanostructured SiC powders using rice husk as the precursor was reported, which was achieved in a 2.45 GHz microwave field in an argon atmosphere.

TL;DR: In this article, a magnetic composite of barium ferrite coated on fly-ash cenospheres (BFACs) was prepared by sol-gel auto-combustion method.

TL;DR: In this paper, an optimization of enzymatic hydrolysis of wool fiber was carried out using a Central Composite Design (CCD) in order to produce wool nanoparticles.

TL;DR: In this article, cuprous oxide with an average mean crystallite size of about 11nm was synthesized through solid state oxidation of Cu powder using a high energy planetary ball mill in oxygen atmosphere.

TL;DR: In this article, the photo-stability of TiO 2 particles was investigated after coating with zirconium, cerium, cobalt, and some other transition metal oxides.

TL;DR: Graphene nano-sheets (GNs) with high quality were successfully synthesized in a Teflon-lined container through a low temperature expansion process, and an optimum experimental condition for the synthesis of GNs has been obtained.

TL;DR: Results show that a non-linear grid representation is computationally more efficient with comparable accuracy and lends credence to the overall use of the model for effective granulation process design and analysis.

TL;DR: In this paper, a new process of "mechanical activation" and "concentrated sulfuric acid decomposition" was proposed to prepare high-purity TiO 2 from Panzhihua ilmenite.

TL;DR: In this paper, a nanocrystalline LaMnO 3 with rhombohedral structure was synthesized by solid-state reaction at low heat using La(NO 3 ) 3 ·6H 2 O, MnSO 4 ·H 2O, and Na 2 CO 3 ·10 H 2 O as raw materials.

TL;DR: In this article, fly ashes from different power stations in Australia (Collie, Eraring, Tarong) and Mongolia (4th thermal power station, Ulaanbaatar city) have been characterized by various techniques.