scholarly journals Effect of the size distribution of magnetic nanoparticles on metastability in magnetization relaxation

2011 ◽  
Vol 84 (9) ◽  
Author(s):  
Yoh Yamamoto ◽  
Kyungwha Park
Keyword(s):  
Magnetic Nanoparticles ◽  
Size Distribution ◽  
Magnetization Relaxation

Empirical expression for harmonics of AC magnetization of magnetic nanoparticles with core size distribution

2019 ◽  
Vol 58 (9) ◽  
pp. 097003 ◽  
Author(s):  
Zhongzhou Du ◽  
Yi Sun ◽  
Oji Higashi ◽  
Keiji Enpuku ◽  
Takashi Yoshida
Keyword(s):  
Magnetic Nanoparticles ◽  
Size Distribution ◽  
Core Size ◽  
Empirical Expression ◽  
Ac Magnetization

Optimizing degradation conditions on treatment of TATB explosive wastewater by γ-Fe2O3 nanoparticles/ UV synergistic degradation

2020 ◽  
Author(s):  
Xiaonan Liu ◽  
Yuedan Deng ◽  
Chaorong Zhang ◽  
xueyuan bai ◽  
Jinshan Li
Keyword(s):  
Magnetic Nanoparticles ◽  
Reaction Time ◽  
Size Distribution ◽  
Uv Light ◽  
Fe2o3 Nanoparticles ◽  
Hydrolysis Method ◽  
Uv Illumination ◽  
Synergistic Degradation ◽  
Optimized Conditions ◽  
Superparamagnetic Properties

In this work, the effect of superparamagnetic γ-Fe2O3 nanoparticles/ ultraviolet light (UV) synergistic degradation on the treatment of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) explosive wastewater was studied. γ-Fe2O3 nanoparticles were prepared by hydrolysis method and its degradation performance of TATB explosive wastewater was systematically studied with UV light assisted. The results showed that γ-Fe2O3 magnetic nanoparticles have low a size distribution ranged from 5 nm to 10 nm and possesses superparamagnetic properties. The optimized degradation condition was investigated and best degradation performance was obtained with the optimized conditions: the initial of pH=3, UV illumination intensity (5 w/cm2), reaction temperature (25 °C), initial TOC concentration (4.025 mg/L) as well as reaction time (60 min). This work can offer a new idea to degrade the explosive wastewater.

scholarly journals Determining the size distribution of magnetic nanoparticles based on analysis of magnetization curves

2009 ◽  
Vol 106 (10) ◽  
pp. 103905 ◽  
Author(s):  
Su-Peng Yu ◽  
Yi-Hsien Liu ◽  
An-Cheng Sun ◽  
Jen-Hwa Hsu
Keyword(s):  
Magnetic Nanoparticles ◽  
Size Distribution ◽  
Magnetization Curves

HTS SQUID Microscopy for Measuring the Magnetization Relaxation of Magnetic Nanoparticles

2005 ◽  
Vol 15 (3) ◽  
pp. 3874-3878 ◽  
Author(s):  
I.A. Volkov ◽  
M.L. Chukharkin ◽  
O.V. Snigirev ◽  
A.V. Volkov ◽  
M.A. Moskvina ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Magnetization Relaxation

Fe3O4nanoparticles prepared by the seeded-growth route for hyperthermia: electron magnetic resonance as a key tool to evaluate size distribution in magnetic nanoparticles

Nanoscale ◽  
2014 ◽  
Vol 6 (13) ◽  
pp. 7542-7552 ◽  
Author(s):  
Idoia Castellanos-Rubio ◽  
Maite Insausti ◽  
Eneko Garaio ◽  
Izaskun Gil de Muro ◽  
Fernando Plazaola ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Magnetic Resonance ◽  
Size Distribution ◽  
Electron Magnetic Resonance ◽  
Seeded Growth ◽  
High Quality ◽  
Power Absorption ◽  
Size Dependent ◽  
Emr Spectroscopy

High quality seeded grown Fe3O4nanoparticles show strong size dependent magnetic power absorption that can be predicted by EMR spectroscopy.

scholarly journals Droplet-based synthesis of homogeneous magnetic iron oxide nanoparticles

2018 ◽  
Vol 9 ◽  
pp. 2413-2420 ◽  
Author(s):  
Christian D Ahrberg ◽  
Ji Wook Choi ◽  
Bong Geun Chung
Keyword(s):  
Particle Size ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Residence Time ◽  
Medical Applications ◽  
Oxide Nanoparticles ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Magnetic Iron Oxide

Nanoparticles have gained large interest in a number of different fields due to their unique properties. In medical applications, for example, magnetic nanoparticles can be used for targeting, imaging, magnetically induced thermotherapy, or for any combination of the three. However, it is still a challenge to obtain narrowly dispersed, reproducible particles through a typical lab-scale synthesis when researching these materials. Here, we present a droplet capillary reactor that can be used for the synthesis of magnetic iron oxide nanoparticles. Compared to conventional batch synthesis, the particles synthesized in our droplet reactor have a narrower size distribution and a higher reproducibility. Furthermore, we demonstrate how the particle size can be changed from 5.2 ± 0.9 nm to 11.8 ± 1.7 nm by changing the reaction temperature and droplet residence time in the droplet capillary reactor.

Sign in / Sign up

Export Citation Format

Share Document