نتایج جستجو برای: Aluminum oxide nanoparticles

تعداد نتایج: 312157  

Journal: :transport phenomena in nano and micro scales 2015
m. farahmandjou n. golabiyan

the aluminum oxide materials are widely used in ceramics, refractories and abrasives due to their hardness, chemical inertness, high melting point, non-volatility and resistance to oxidation and corrosion. the paper describes work done on synthesis of α-alumina by using the simple, non-expensive solution combustion method using glycine as fuel.aluminum oxide (al2o3) nanoparticles were synthesiz...

Journal: :international journal of environmental research 0

aluminum oxide nanoparticles are the most widely used nanoparticles in various industries.theincreasing use of nanoparticles in the past two decades and their entry into the industrial and non-industrialwaste water necessitates the assessment of potential effects of these substances in aquatic ecosystems. oecdstandard method was applied to determine the toxicity of this substance. after perform...

Background: The purpose of this study was to investigate the effect of copper and aluminum-zinc oxide nanoparticles and their synergistic effects with conventional biocides against Bacillus cereus. Methods: Synthesis of copper-zinc oxide, aluminum-zinc oxide nanoparticles performed via co- precipitation method and nanoparticle properties were investigated using FTIR, XRD and TEM. The antimicro...

2004
Ashish Rai Donggeun Lee Kihong Park Michael R. Zachariah

Aluminum nanoparticles have increasingly gained attention because of their potential incorporation in explosive and propellant mixtures. This letter reports on a qualitative study on the oxidation of aluminum nanoparticles containing a passivating oxide coating. Hot-stage transmission electron microscopy (TEM) studies were performed to understand the stability of the oxide coating in nanoalumin...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

nano-sized γ-al2o3 was synthesized successfully by a simple method using al2(so4)3·18h2o as aluminium source and in the presence of polyethylene glycol (peg 2000). ftir spectroscopy, x-ray diffraction (xrd), scanning electron microscope (sem) and transmission electron microscope (tem) were used to characterize the structure and morphology of synthesized powder. the results showed that peg playe...

Esmaeil Karami, Mahmoud Ghazi Khansari, Mehrafarin Kiani, Reza Chahardoli, Seyed Jamaleddin Shahtaheri, Zahra Goodarzi,

Introduction: Although aluminum oxide nanoparticles (Al2O3-NPs) are the most widely used nanomaterials, limited studies have been reported on their toxicology. Therefore, the present study aimed to investigate the potential toxicity of aluminum oxide (alumina) nanoparticles and the protective role of aqueous extract of wormwood plant on nanomaterial-induced disorders in the lung of rats. Mater...

Computational studies have attracted the attention of researchers to understand the structural behavior of the molecules. These methods grade complex systems for novel properties with new predictions in areas of physics, chemistry and biology useful for conduct of experimental studies. Nanoparticles in present day technologies have become integral part in diverse areas of science mostly with me...

2012
Amirkianoosh Kiani Palneet Singh Waraich Krishnan Venkatakrishnan Bo Tan

: In this work, we have proposed a concept for the generation of three-dimensional (3D) nanostructured metal alloys of immiscible materials induced by megahertz-frequency ultrafast laser pulses. A mixture of two microparticle materials (aluminum and nickel oxide) and nickel oxide microparticles coated onto an aluminum foil have been used in this study. After laser irradiation, three different t...

2011
Francisco Márquez Carmen Morant Vicente López Félix Zamora Teresa Campo Eduardo Elizalde

Amorphous Si nanowires have been directly synthesized by a thermal processing of Si substrates. This method involves the deposition of an anodic aluminum oxide mask on a crystalline Si (100) substrate. Fe, Au, and Pt thin films with thicknesses of ca. 30 nm deposited on the anodic aluminum oxide-Si substrates have been used as catalysts. During the thermal treatment of the samples, thin films o...

Introduction and Purpose: Production of large quantities of sludge is a major problem in wastewater treatment plants, which necessitates adopting proper economical and environmental approaches for its management and treatment. The aim of this study was to investigate the effect of polyacrylamide polymer, modified with aluminum oxide nanoparticles, on dewatering of sludge produced from municipal...

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