Showing papers in "Applied Surface Science in 2012"

TL;DR: In this paper, a comparative X-ray photoelectron spectroscopy (XPS) analysis of Ag 3d, Ni 2p and O1s core levels was performed in combination with Xray diffraction and optical absorption spectrographs in the visible range.

TL;DR: Graphene oxide nanosheets (GOn)/PVDF nanocomposite films were prepared by solution casting method with various GOn contents in this paper, which resulted in the formation of purely piezoelectric β-polymorph at only 0.1% GOn content.

TL;DR: In this paper, a super-hydrophobic cotton textiles were produced using a reduction of [Ag(NH3)2]-complex with glucose and hexadecyltrimethoxysilane.

TL;DR: In this article, X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and UV-visible absorption spectroscopy were used to characterize the surface properties of the prepared CuO nanoparticles.

TL;DR: In this article, the retained functional groups on RGO planes played an important role in anchoring ZnO to RGO, which was characterized by X-ray diffraction (XRD), Xray photoelectron spectroscopy (XPS), scanning and transmission electron microscopy and photoluminescence spectra.

TL;DR: In this article, the formation of cobalt ferrite (CoFe 2 O 4 ) thin film on stainless steel substrate by simple chemical route from an alkaline bath containing Co 2+ and Fe 2+ ions is revealed.

TL;DR: In this article, a novel approach was successfully developed for advanced catalyst Ag-deposited silica-coated Fe 3 O 4 magnetic nanoparticles, which possess a silica coated magnetic core and growth active silver nanoparticles on the outer shell using n-butylamine as the reductant of AgNO 3 in ethanol.

TL;DR: In this article, the effects of different parameters, such as pH, contact time, concentration of dye and temperature on the capacity and adsorption mechanism of Mg-Fe-CO 3 -LDH in removing an anionic dye (congo red, CR) from aqueous solution were separately investigated.

TL;DR: In this article, a tentative mechanism for the enhanced photocatalysis of the SnO 2 /ZnO/TiO 2 composite catalyst has been proposed, which could be attributed to the increased separation of the charge carriers, which depress the charge pair recombination and prolonged the electron lifetime in the composite structure.

TL;DR: In this article, active carbons have been prepared from corncob using chemical activation with phosphoric acid at 400°C using varied ratio of impregnation (RI) using scanning electron microscopy.

TL;DR: Graphene-CdS composites were synthesized through a simple solvothermal method in this paper, where the formed CdS nanospheres were homogeneously scattered on the surface of graphene sheets.

TL;DR: In this paper, the adsorption method was used for removing fluoride from aqueous solution by Apatitic tricalcium phosphate, and the results showed good fit of the experimental data to the second-order polynomial model with coefficient of determination (R2) value of 0.966 and Fisher F-value of 10.28.

TL;DR: In this article, two oxidation states of Cu in +1 and +2 were identified in the ZnO thin film by X-ray photoelectron spectroscopy (XPS) and their photocatalytic activities were investigated by the degradation of methylene blue dye under blacklight fluorescent tubes.

TL;DR: In this paper, a nickel sulfate bath containing SiC submicron particles between 100 and 1000 nm was used as the plating electrolyte and the effect of the SiC content in the electrolyte on particle distribution, microhardness and wear resistance of nano-composite coatings was studied.

TL;DR: In this article, a concentrated ammonia-assisted hydrothermal method was developed to obtain N-doped graphene sheets by simultaneous doping and reduction of graphene oxide (GO) sheets.

TL;DR: In this paper, the preparation of Ag doped ZnO nanoparticles conducted through the method of laser-induction is presented in order to evaluate the heterogeneous photocatalytic degradations of methylene blue (MB) solutions.

TL;DR: In this article, aniline and p-chloroaniline were removed from aqueous solution by Fe3O4/graphene nanocomposite within 60 min without adjusting solution pH.

TL;DR: The Fe-TiO2 photocatalysts synthesized by a sol-gel method have the mesoporous structure with a narrow pore size distribution, large pore volume and high surface area.

TL;DR: In this article, a 3D finite element model of the shot peening process is used to investigate surface topography alterations as a function of peening parameters and processing time and the results obtained from the numerical simulations, correspond quite well with the roughness values measured experimentally on shot peened specimens.

TL;DR: In this paper, a novel amphiphilic zwitterionic copolymer poly(vinylidene fluoride)-graft-poly(sulfobetaine methacrylate) (PVDF-g-PSBMA) was firstly synthesized by atom transfer radical polymerization (ATRP) and used as an additive in the preparation of PVDF membranes.

TL;DR: In this paper, a self-lubricating wear-resistant NiCr/Cr3C2-30% WS2 composite coating was fabricated on 0Cr18Ni9 austenitic stainless steel by laser cladding.

TL;DR: In this paper, an analysis of the chemical composition using energy dispersive spectroscopy (EDS) revealed that a titanium coating layer was formed causing the hardness of the titanium surface to be close to that of tungsten carbide.

TL;DR: In this paper, a facile method involving oxidative polymerization of dopamine was proposed to prepare highly hydrophilic carbon black (CB) particles, where a self-assembled polydopamine (PDA) ad-layer was formed via the oxidative polymerisation of dopamine on the surface of CB.

TL;DR: Airborne particle abrasion in combination with piranha solution etching improves the adhesive properties of PEEK.

TL;DR: In this paper, polyacrylonitrile (PAN)-based carbon fiber were chemically modified with H 2 SO 4, KClO 3 and silane coupling agent (γ-aminopropyltriethoxysilane, APS), and carbon fiber reinforced phenolic matrix composites were prepared.

TL;DR: In this paper, a Ni-P-CNT composite coating was successfully deposited on the surface of copper by electroless plating and X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) were used to characterize the coatings.

TL;DR: In this paper, the authors presented a direct synthesis of silver conductive film on PET substrate by inkjet printing silver citrate conductive ink, which reached the lowest resistivity of 17.1μΩ cm at 230°C and possessed high reflection and excellent adhesive property.

TL;DR: In this article, the authors used the Langmuir, Freundlich, and Dubinin-Radushkevich equilibrium models to obtain the characteristic parameters of each model, and the results suggest that MWCNTs are suitable materials for preconcentration and solidification of uranium (VI) species.

TL;DR: In this paper, the preparation of activated carbons from Euphorbia rigida by chemical activation with different impregnation agents and ratios was studied, where ZnCl2, K2CO3, NaOH and H3PO4 were used as chemical activation agents.

TL;DR: In this paper, the effect of pulse frequency on the corrosion behavior of microarc oxidation (MAO) coatings on AZ31 Mg alloys in simulated body fluid (SBF) was addressed.