Showing papers in "Materials Research Bulletin in 2012"

TL;DR: In this paper, the effect of pH, dosage, contact time, and temperature on the adsorption properties of phenol onto graphene were investigated, and the results showed that the maximum adsorbing capacity can reach 28.26 µm/g at the conditions of initial phenol concentration of 50 mg/L, pH 6.3 and 285 K.

TL;DR: In this paper, the effect of preparation parameters like microwave power and irradiation time on the morphology and particle size of the as-synthesized CuInS2 nanoparticles were investigated.

TL;DR: In this paper, a capacitor was generated by the interface of ZnO and MWCNTs, and a resistor-capacitor model could well describe the relationships between the structure and the dielectric properties, electromagnetic interference shielding and microwave-absorption of the composites in the frequency range of 2-18 GHz.

TL;DR: In this paper, polycrystalline Fe doped ZnO nanoparticles were synthesized through citrate gel method using XRD, FESEM, EDS, TEM, SAED and FTIR spectroscopy.

TL;DR: In this article, a novel chemical successive ionic layer adsorption and reaction (SILAR) method was used for preparation of CZnSnS 4 (CZTS) thin films.

TL;DR: In this paper, a magnetically separable heterogeneous photocatalyst TiO2/CoFe2O4 nanofiber was prepared by sol-gel method and electrospinning technology, followed by heat treatment at 550°C for 2.

TL;DR: In this article, a nickel-zinc ferrite magnetic nanoparticle (NZFMN) was synthesized and its dye degradation ability using photocatalytic ozonation was investigated.

TL;DR: In this article, a tellurium-transforming Bacillus sp. BZ was isolated from the Caspian Sea in northern Iran and then used to synthesize rod-shaped elemental tellsurium nanoparticles.

TL;DR: In this paper, the experimental results from the experimental study of third-order nonlinear optical (NLO) properties of three molecules of Br and NO 2 substituted chalcone derivatives are presented.

TL;DR: In this paper, the synthesis of cobalt oxyhydroxide thin films on inexpensive stainless steel substrate using potentiodynamic electrodeposition method was reported, which were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) techniques.

TL;DR: In this article, ZnAl2O4 nanoparticles were synthesized via a solvothermal method and modified by oleic acid in cyclohexanol solution and the results showed that the modified nanoparticles are nearly monodispersed and can stably disperse in lubricant oil.

TL;DR: In this paper, a mesoporous material was prepared from rice husk ash by sol-gel method and dried under atmospheric pressure, which was characterized by XRF, FT-IR, TG, DTA, DTG, XRD, BET and SEM measurements.

TL;DR: In this article, a polyvinylpyrrolidone (PVP)-assisted sonochemical process was used to synthesize spindle-like CaWO 4 :Sm 3+ phosphors, which were characterized by using X-ray diffraction, field emission scanning electron microscopy (FE-SEM) and photoluminescence spectroscopy (PL).

TL;DR: In this article, Nanof-lake-based microsphere-like WO3·H2O architectures were selectively synthesized by acidic precipitation of sodium tungstate solution at mild temperature.

TL;DR: Sankaranarayanan-Ramasamy (SR) method was used to grow a TGS single crystal of diameter 35mm and length 80mm as discussed by the authors, which was found to be 152kg/mm 2 for SR grown TGS.

TL;DR: In this article, a magnetically separable catalyst consisting of phosphotungstic acid supported on imidazole functionalized silica coated cobalt ferrite nanoparticles was prepared.

TL;DR: In this article, the photocatalytic activity of Ce-TiO2 in MB degradation was evaluated by irradiation of fluorescent lamp, and the results indicated that Ce ion is incorporated into the lattice of TiO2, which can restrain the increase of grain size, broaden the absorption region to visible light, and inhibit the recombination of the photo-generated electron and hole pairs.

TL;DR: In this paper, the cubic Li 7 La 3 Zr 2 O 12 with the cubic garnet-type structure at low temperature with a lattice constant of 13.0035 A was reported.

TL;DR: In this article, a facile hydrothermal process of Fe(NO 3 ) 3 ·9H 2 O aqueous solution in the presence of NaOH, followed by a calcination treatment was used to obtain porous α-Fe 2 O 3 nanorods with typical pore size of 2-4nm.

TL;DR: In this paper, the effects of sintering temperature on the microstructure and electrical properties of (Ba0.90Ca0.10), Ti0.85Zr0.15)O3 (BCTZ) lead-free piezoelectric ceramics were studied.

TL;DR: The perovskite chromite TmCrO 3 shows magnetization reversal at two temperatures as discussed by the authors, which is attributed to the antiparallel coupling between Tm 3+ and Cr 3+ moments, while that at the lower temperature (∼6-7 K) is rooted in a rotation of the magnetic moments.

TL;DR: In this paper, a well-crystalline flower-shaped ZnO nanostructures were synthesized by simple hydrothermal process at low-temperature of 145°C and utilized as a photocatalyst and photo-anode material for photocatalytic degradation and dye-sensitized solar cell applications, respectively.

TL;DR: In this article, the fabrication and photocatalytic properties of the oriented arrays of SiC nanowires on the Si substrate were reported, and the SiC arrays were prepared by carbonizing the Si nanowire arrays with the graphite powder at 1250°C.

TL;DR: In this paper, an evaluation of Ln2CuO4 (Ln: La, Pr, Nd) cuprates is presented in terms of their possible application as cathode materials in Solid Oxide Fuel Cells working in an intermediate temperature range (600-800°C).

TL;DR: In this article, Nb{sub 2}O{sub 5} hollow nanospheres of average diameter ca. ∼29 nm and hollow cavity size ca. 17 nm were synthesized using polymeric micelles with core-shell-corona architecture under mild conditions.

TL;DR: In this paper, an electrically conductive copper film was prepared by thermal decomposition in a nitrogen atmosphere using complexes of copper formate and various amines, including octylamine and dibutylamine.

TL;DR: In this paper, the transmission spectra are recorded in the transmission range 400-3300nm for nc-CdSe thin films and the normal dispersion of refractive index is described using Wemple-DiDomenico single-oscillator model.

TL;DR: In this article, the single phase of NaLa 1− x MgWO 6 : xRE 3+ (0, x ǫ ≥ 1) (RE Â = Eu, Sm, Tb) phosphors were prepared by solid-state reaction method by using X-ray diffraction, scanning electron microscopy, morphology energy-dispersive Xray spectroscopy, UV-vis diffuse reflectance spectra and photoluminescence.

TL;DR: In this article, the effects of different solvents on the size and morphology of BiOBr crystal are investigated in detail, and the differences in the photocatalytic activities are mainly attributed to the different morphologies, which further results in the difference in Brunauer-Emmett-Teller (BET) surface areas, bandgaps, exposed crystal facets and porous structures.