The book focuses on the relevant basic concepts of Magnetic oxides, as well as on synthesis routes and important applications of spinel ferrites, hexaferrites and magnetic oxide nanomaterials.

• front-matter
  • Table of Contents
  • Preface
• 1
  • Investigation on Structural, Electrical, Magnetic and Magnetocaloric Properties of Pr0.67Ba0.22Sr0.11Mn1-xFexO3 Perovskites
  • 1. Introduction
  • 2. Experimental procedure
  • 3. Results and discussion
    • 3.1 XRD measurements
    • 3.2 DC conductivity study
    • 3.3 AC conductivity study
    • 3.4 Magnetic properties
    • 3.5 Magnetocaloric study
  • Conclusions
  • References
• 2
  • Effect of Al-substitution on Structural and Magnetic Properties of Er3Fe5-xAlxO12 Garnets
  • 1. Introduction
  • 2. Experimental procedure
  • 3. Results and discussion
    • 3.1 XRD measurements
    • 3.2 Magnetic measurements
    • 3.3 Temperature dependence of the magnetic properties
    • 3.4 Low temperature measurements
  • Conclusions
  • References
• 3
  • A Brief Review on Magnetic and Magnetocaloric Properties of La-Type Manganites
  • 1. Introduction
  • 2. Sample preparation
  • 3. Characterization techniques for the samples
  • 4. Effects of substitution for La and Mn
    • 4.1 Crystal structure
    • 4.2 Scanning electron microscopy investigation
    • 4.3 Magnetism
    • 4.4 Critical behavior
    • 4.5 Magnetocaloric study
  • Conclusions
  • References
• 4
  • Graphene-based Materials and their Nanocomposites with Metal Oxides: Biosynthesis, Electrochemical, Photocatalytic and Antimicrobial Applications
  • 1. Introduction
  • 2. Synthesis of graphene oxide
  • 3. Reduction of graphene oxide
    • 3.1 Green reduction of graphene oxide
    • 3.1.1 Fruit extract
    • 3.1.2 Natural organic acid
    • 3.1.3 Metal powder
    • 3.1.4 Cellulose
  • 4. Applications of graphene based nanocomposites
    • 4.1 Electrochemical performance
    • 4.2 Heterogeneous photocatalysis
    • 4.2.1 Principles of photocatalysis and reaction mechanism
    • 4.2.2 Improving photocatalytic efficiency
    • 4.2.3.1 Surface area
    • 4.2.3.2 Exterior of electron acceptors
    • 4.2.4 Photocatalytic degradation of dyes
    • 4.2.5 Photoatyltic applications of graphene/metal oxide nanocomposites
    • 4.3 Antibacterial activity of graphene-metal oxide nanocomposites
  • Conclusions
  • References
• 5
  • Synthesis and Antimicrobial Study of Co-Ni-Cd Nanoferrites
  • 1. Introduction
  • 2. Materials and methods
  • 3. Results and discussion
    • 3.1 XRD analysis
    • 3.2 FT-IR study
    • 3.2 Antibacterial studies
  • Conclusions
  • Acknowledgement
  • References
• 6
  • Applications of Metal/Metal Oxides Nanoparticles in Organic Transformations
  • 1. Introduction
  • 2. Chemistry of nanocatalysts
    • 2.1 Theoretical aspects of nanocatalyst
    • 2.2 Types of nanocatalysis and organic transformation
  • 3. Future aspects of nanocatalysis
  • Conclusions
  • References
• 7
  • Ameliorating Physical Properties of Co1-xCaxFe2O4 Nano Ferrites for Technological Applications
  • 1. Introduction
  • 2. Experimental procedure
    • 2.1 Synthesis
    • 2.2 Samples preparation
    • 2.3 Characterization techniques
  • 3. Results and discussion
    • 3.1 Structural analysis
    • 3.1.1 FT-IR analysis
    • 3.1.2 X-ray diffrection analysis
    • 3.1.3 Thermal anaylsis
    • 3.1.4 Energy dispersive x-ray analysis (EDAX)
    • 3.1.5 HRTEM analysis 3
    • 3.2 Magnetic properties
  • Conclusions
  • References
• 8
  • Lithium Ferrites Prepared Differently and its Magnetic Properties
  • 1. Introduction
  • 2. Experimental description
    • 2.1 Solid state reaction method
    • 2.2 Sol-gel method
  • 3. Results and discussion
    • 3.1 Thermal analysis
    • 3.2 XRD analysis
    • 3.3 Raman spectroscopy
    • 3.4 Surface morphology
    • 3.5 Magnetic properties
    • 3.5.1 Magnetic susceptibility
    • 3.5.2 Hysteresis loops
  • Conclusions
  • References
• 9
  • Multifunctional Ferrites: Synthesis, Behavior and Biomedical Applications
  • 1. Introduction
  • 2. Synthesis of superparamgnetic iron oxide nanoparticles (SPIONs)
    • 2.1 Sol-gel auto combustion technique
  • 3. Theoretical aspects of magnetic relaxation
    • 3.1 Brownian relaxation mechanism
    • 3.2 Néel relaxation mechanism
  • 4. Key role of magnetic parameters to affect heating potential
    • 4.1 Intrinsic parameters
    • 4.1.1 Particle size effect
    • 4.1.2 Anisotropy
    • 4.1.3 Curie temperature
    • 4.2 Extrinsic parameters
    • 4.2.1 Saturation magnetization
    • 4.2.2 Magnetic coercivity and remanence magnetization
  • 5. Characterization
    • 5.1 Structural analysis
    • 5.1.1 XRD analysis
    • 5.1.2 FTIR analysis
    • 5.2 SEM micrographs
    • 5.3 Elemental analysis by EDX
    • 5.3.1 TEM micrographs and SAED patterns
    • 5.4 Magnetic properties
  • 6. Heat generation with managing magnetism: specific absorption ratio (SAR)
    • 6.1 Magnetic hyperthermia measurement by calorimetric method
  • 7. Applications of magnetic nanoparticles in medical field
    • 7.1 Hyperthermia using magnetic nanoparticles
    • 7.2 Drug delivery
    • 7.3 Targeting multifunctional carriers
    • 7.4 MRI contrast agents
    • 7.5 Cardiovascular disease imaging
    • 7.6 Molecular imaging
    • 7.7 Conventional chemotherapeutic agents
  • 8. Limitations of SPIONs for drug delivery
  • Conclusions
  • References
• 10
  • Investigation on Structural, Electrical and Magnetic Properties of Copper Substituted Nickel Nanoferrites
  • 1. Introduction
  • 2. Experimental procedure
    • 2.1 Sample preparation
    • 2.2 Characterization
  • 3. Results and discussion
    • 3.1 Structural characterization
    • 3.1.1 FT-IR analysis
    • 3.1.2 XRD analysis
    • 3.2 Morphological studies
    • 3.3 Magnetic properties
    • 3.4 Electrical properties
    • 3.4.1 Temperature dependent dc conductivity
    • 3.4.2 Temperature dependent drift mobility
    • 3.4.3 Temperature dependence thermoelectric power
    • 3.5 Dielectric measurements
    • 3.5.1 Frequency dependence dielectric constant (real-ɛʹ)
    • 3.5.2 Frequency dependence dielectric loss tangent (tan δ)
    • 3.5.3 Frequency dependence ac conductivity (σac)
    • 3.5.4 Composition dependence dielectric parameters (εʹ, tan δ and σac)
  • Conclusions
  • References
• back-matter
  • Keyword Index
  • About the Editors
  • About the Authors