نتایج جستجو برای: iron oxide reduction

تعداد نتایج: 774852  

امیرجانی, محمد رضا, صابری, طاهره, عسکری, مهری,

Nanomaterials are considered as one of the most important innovations of modern science. Nanoparticles are highly reactive. These property are largely due to their size (from 1 to 100 nm), large surface area and high solubility. Among all the micronutrients, iron has the largest amount in plants. Iron is the catalytic component of many oxidization and redox enzymes and is needed for chlorophyll...

E Fataei, Gh Ebrahimzadeh Rajaei, M Kashefi Alasl, N* Sajjadi, Sh Khalili Arjaghi,

Background & objectives: The import of heavy metals into various sources of drinking water supply is one of the major problems of water quality, especially in industrial areas. The aim of this study was to investigate the ability of mercury and arsenic metal pollutants to be removed from aqueous solutions using green oxide nanoparticles synthesized by green method. For this purpose, the extract...

Journal: :physical chemistry research 2015
majid farahmandjou farzane soflaee

in the past decade, magnetic nanomaterials have attracted much attention due to their physical properties and technological applications. in this work, α-fe2o3 nanoparticles were first synthesized via a simple co-precipitation method using iron chloride hexahydrate (fecl3.6h2o) as precursor and ammonia solution as precipitator. the samples were then characterized by high resolution transmission...

2011
R. YUVAKKUMAR V. ELANGO V. RAJENDRAN N. KANNAN K. S. Rangasamy

In the present work, nano scaled zero valent irons (nZVI) were synthesized in ethanol medium by the method of ferric iron reduction using sodium borohydride as a reducing agent under atmospheric conditions. The obtained iron nanoparticles are mainly in zero valent oxidation state and remain without significant oxidation for weeks. A systematic characterization of nZVI was performed using UV, XR...

2011
Chien-Chang Shen Hong-Jen Liang Chia-Chi Wang Mei-Hsiu Liao Tong-Rong Jan

BACKGROUND Accumulating evidence indicates that iron oxide nanoparticles modulate immune responses, and induce oxidative stress in macrophages. It was recently reported that iron oxide nanoparticles attenuated antigen-specific immunity in vivo, though the underlying mechanism remains elusive. The present study investigates the direct effect of iron oxide nanoparticles on antigen-specific cytoki...

Journal: :journal of ultrafine grained and nanostructured materials 2015
maryam hosseini-zori

nano-encapsulated iron oxide in zirconium oxide-coated mica pigments are thermally stable,innocuous to human health, non-combustible, and they do not conduct electricity. they could beapplied in several industries such as thermoplastics, cosmetics, food packaging, children toys, paints,automobiles coating, security purposes, and banknotes. nowadays, they are highly desirable inceramic decoratio...

Introduction: With the increasing development of nanotechnology, nanomaterials are used instead of conventional compounds. One of these nanomaterials that have many applications in the biomedical field, is iron oxide (Fe2O3) nanoparticles and there is not much research on its effects on the physiological features. So in this research, effect of iron oxide nanoparticles on short and long-term...

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