scholarly journals Application of Spinel and Hexagonal Ferrites in Heterogeneous Photocatalysis

2021 ◽  
Vol 11 (21) ◽  
pp. 10160
Author(s):  
Zuzanna Bielan ◽  
Szymon Dudziak ◽  
Adam Kubiak ◽  
Ewa Kowalska
Keyword(s):  
Single Phase ◽  
Hydrogen Generation ◽  
Heterogeneous Photocatalysis ◽  
Nano Particles ◽  
Hexagonal Ferrites ◽  
Semiconducting Materials ◽  
Magnetic Photocatalyst ◽  
Current State ◽  
Magnetic Nano Particles

Semiconducting materials display unique features that enable their use in a variety of applications, including self-cleaning surfaces, water purification systems, hydrogen generation, solar energy conversion, etc. However, one of the major issues is separation of the used materials from the process suspension. Therefore, chemical compounds with magnetic properties have been proposed as crucial components of photocatalytic composites, facilitating separation and recovery of photocatalysts under magnetic field conditions. This review paper presents the current state of knowledge on the application of spinel and hexagonal ferrites in heterogeneous photocatalysis. The first part focuses on the characterization of magnetic (nano)particles. The next section presents the literature findings on the single-phase magnetic photocatalyst. Finally, the current state of scientific knowledge on the wide variety of magnetic-photocatalytic composites is presented. A key aim of this review is to indicate that spinel and hexagonal ferrites are considered as an important element of heterogeneous photocatalytic systems and are responsible for the effective recycling of the photocatalytic materials.

ON-LINE CHARACTERIZATION OF MAGNETIC NANO PARTICLES - SIMULATION VERSUS EXPERIMENT

2001 ◽  
Vol 32 ◽  
pp. 385-386
Author(s):  
TH. KAUFFELDT ◽  
E. KAUFFELDT ◽  
T. ZARUTSKAYA ◽  
M. SHAPIRO ◽  
A. SCHMIDT-OTT
Keyword(s):  
Nano Particles ◽  
On Line ◽  
Magnetic Nano Particles

Synthesis and characterization of chemically ordered FePt magnetic nano-particles

2010 ◽  
Vol 405 (16) ◽  
pp. 3205-3207 ◽  
Author(s):  
K. Srinivasa Rao ◽  
T. Balaji ◽  
Y. Lingappa ◽  
M.R.P. Reddy ◽  
Arbind kumar ◽  
...  
Keyword(s):  
Nano Particles ◽  
Synthesis And Characterization ◽  
Magnetic Nano Particles

scholarly journals Characterization of magnetic relaxation when biofunctionalized magnetic nano-particles are associated with biomarkers in the liquid state in biomedical applications

RSC Advances ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 4057-4062 ◽  
Author(s):  
Shu-Hsien Liao ◽  
Han-Sheng Huang ◽  
Jean-Hong Chen ◽  
Yu-Kai Su ◽  
Yuan-Fu Tong
Keyword(s):  
Relaxation Time ◽  
Magnetic Nanoparticles ◽  
Liquid State ◽  
Magnetic Relaxation ◽  
Biomedical Applications ◽  
Nano Particles ◽  
Time Dependent ◽  
Magnetic Nano Particles

This study determined the characteristics of the time-dependent effective relaxation time τeff and magnetization M when biofunctionalized magnetic nanoparticles (BMNPs) associated with biomarkers in a liquid immunoassay.

Preparation and characterization of silica coated iron oxide magnetic nano-particles

2010 ◽  
Vol 76 (5) ◽  
pp. 484-489 ◽  
Author(s):  
Ying-Sing Li ◽  
Jeffrey S. Church ◽  
Andrea L. Woodhead ◽  
Filsun Moussa
Keyword(s):  
Iron Oxide ◽  
Nano Particles ◽  
Magnetic Nano Particles

Using Chemical Coprecipitation Method to Prepare Magnetite Magnetic Fluids and Explore its Applications in Hyperthermia

2011 ◽  
Vol 474-476 ◽  
pp. 1776-1780 ◽  
Author(s):  
Chang Shu Tsai ◽  
Hong Yi Chen ◽  
Kwo Ping Chang
Keyword(s):  
Magnetic Nanoparticle ◽  
Tumor Therapy ◽  
Imaging Study ◽  
Nano Particles ◽  
Surface Areas ◽  
Target Drug ◽  
Fe3o4 Magnetic Nanoparticle ◽  
Therapy Target ◽  
Magnetic Nano Particles

Magnetic nano-particles are extensively studied in tumor therapy, target drug, gene screen, cell separation and magnetic resonance imaging study, due to theirs unique features such as its superparamagnetism, high saturation magnetization and high effective surface areas, etc. The aim of this work is to emphasize on the preparation and characterization of Fe3O4 magnetic nano-particles and its applications in hyperthermia . As the results, the Fe3O4 magnetic nanoparticle in this work has shown good qualities as well as in the literatures. It may be feasible to utilize in the field of hyperthermia.

Structural and Elemental Characterization of Fe/Co Nanoparticles Produced through Organometallic Synthesis

2002 ◽  
Vol 738 ◽  
Author(s):  
P. L. Fejes ◽  
F. Dumestre ◽  
C. Amiens ◽  
P. Renaud ◽  
B. Chaudret ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Nano Particles ◽  
Organometallic Synthesis ◽  
Transmission Electron ◽  
Organometallic Precursors ◽  
Co Nanoparticles ◽  
Magnetic Nano Particles ◽  
Electron Energy Loss ◽  
Elemental Characterization

ABSTRACTWe report on the structure of and elemental distributions within various magnetic nano-particles synthesized using organometallic precursors. The characterization was carried out using high-resolution transmission electron microscopy (HRTEM), and electron energy loss spectroscopy (EELS), with spectral imaging to investigate elemental distributions within the particles. The crystallinity and oxidation of Fe, Co and Fe-Co particles are discussed. We observe heavy oxidation of Fe particles, while Co particles show, at most, only a thin surface layer of oxide. When Fe and Co are combined to form Fe-Co particles, they are seen to be inhomogeneous, consisting of an Fe core, surrounded by a Co-rich shell.

Sign in / Sign up

Export Citation Format

Share Document