نتایج جستجو برای: nano zero

تعداد نتایج: 199138  

Journal: :Global environmental engineers 2022

The advanced oxidation process based on persulfate has a broad application prospect in the remediation of organic pollutants. As an effective, low-cost and environmentally friendly material, nano-zero-valent iron (nZVI) can effectively activate (nZVI/PS) to generate strongly oxidizing sulfate radical for removing pollutants environment. In this review, we first clarify activation pathway nZVI a...

2015
Sauro Pierucci Jiří J. Klemeš Mouhamadou Thierno Gueye Elisabetta Petrucci Luca Di Palma

The increasing industrial development of recent decades has lead to the production of increasing quantities of waste containing heavy metals, elements often harmful to the environment, which in the past were not properly disposed of, thus inducing soil and groundwater pollution. In particular, chromium (Cr) and its derivatives are largely used in industries such as textiles, electronics, metall...

1980
Nabila Rahman Zainal Abedin Ali Hossain

In the present study, nano-scale Zero Valent Iron (NZVI) was 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 hours. A systematic characterization of NZVI was performed using XRD, SEM...

ژورنال: طلوع بهداشت یزد 2014
احرام پوش, محمد حسن, سلمانی, محمد حسین, عابدی, محمد, مظفری, سید احمد,

Abstract Introduction: Researches have been shown if water and wastewater treatment systems properly managed, it provides a major part of water reservoirs for the needs of developing countries. Because of the uncontrolled increase in concentrations of fine particle materials, organic and inorganic compounds and especially heavy metals in water, the conventional methods of treatment is not able...

Journal: :APL Materials 2021

The Anderson localization of thermal phonons has been shown only in few nano-structures with strong random disorder by the exponential decay transmission to zero and a conductivity maximum when increasing system length. In this work, we present path demonstrate phonon distinctive features graded superlattices short-range order long-range disorder. A minimum length appears due non-zero constant,...

Journal: :international journal of nanoscience and nanotechnology 2014
s. rahmani m. mahmoudifard m. safi

ultraviolet waves, because of their short wavelength, have a high energy and considerable damaging effects on surfaces. protection against ultraviolet radiations is one of the finishing treatments done on surfaces exposed to sunlight. the importance of this issue in relation to human health, due to complications such as skin burns and cancer, is doubled. up to now, different materials such as z...

Journal: :Turkish Journal of Chemistry 2022

Topographic essential synthesis of nanomaterials by adjusting easy preparatory factors is an effective way to improve a variety nanostructured materials. The SILAR technique used evaluate the manufacturing samples MoO3, TiO2, and MoTiO5 nanostructures. These nanostructures are as electrode materials in photovoltaic systems. link between photoelectrochemical characteristics studied depth. discov...

Journal: :Progress of Theoretical Physics 1952

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه مواد و انرژی - پژوهشکده سرامیک 1392

thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...

2010
Ewa Sawosz André Chwalibog Jacek Szeliga Filip Sawosz Marta Grodzik Marlena Rupiewicz Tomasz Niemiec Katarzyna Kacprzyk

PURPOSE Rapid development of nanotechnology has recently brought significant attention to the extraordinary biological features of nanomaterials. The objective of the present investigation was to evaluate morphological characteristics of the assembles of gold and platinum nanoparticles (nano-Au and nano-Pt respectively), with Salmonella Enteritidis (Gram-negative) and Listeria monocytogenes (Gr...

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