Shape control of nanostructured TiO2 using a Schiff base ligand via sol–gel hydrothermal method

Noori, Elham; Mir, Noshin; Salavati‐Niasari, Masoud; Gholami, Tahere; Masjedi-Arani, Maryam

doi:10.1007/s10971-013-3255-7

Cited by 17 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this work, the nanoparticles are synthesized using the tartaric acid-modified sol-gel method as it is a low cost, well-established, and flexible synthesis route which produce a wide range of highquality and homogeneous micro-and nanostructures. In this synthesis method, small variations in pH, temperature, precursors, time, pressure, and atmosphere, among others, can lead to the formation of a wide range of preferred nanostructures [16][17][18]. The tartaric acid (C 6 H 6 O 7 ) is added to complete the combustion of the nitrates as a chelating agent to form a uniform sol solution and facilitate the formation of homogeneous crystalline particles [19].…”

Section: Methodsmentioning

confidence: 99%

Barium and Yttrium Co-doping in Bismuth Ferrite Nanoparticles to Enhance Microwave Properties

Hait,

Gorai,

Mandal

2023

Phys. Scr.

View full text Add to dashboard Cite

The microwave properties of multiferroic Bismuth Ferrite have been widely studied and focus has been placed on the improvement of microwave absorption, impedance matching, effective bandwidth through doping with suitable elements, and formation of nanostructures. In this work, Barium and Yttrium co-doping at the Bi site of BiFeO3 nanoparticles (BayBi1-x-yYxFeO3) were observed to be effective in enhancing the dielectric and magnetic properties of the sample with x = 0.03 and y = 0.1. A minimum reflection loss of −61.7 dB was achieved in the sample for a composite absorber length of 7.5 mm attributed to the best balance observed between dielectric loss (tanδ ε ) and magnetic loss (tanδ μ ) based on the match equation, tanδ ε = tanδ μ . The best impedance matching observed in this sample also supports the observed high microwave absorption required for practical application as microwave absorption material.

show abstract

Section: Methodsmentioning

confidence: 99%

Barium and Yttrium Co-doping in Bismuth Ferrite Nanoparticles to Enhance Microwave Properties

Hait,

Gorai,

Mandal

2023

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…But as we have seen, the circumstances under which GFO is synthesized considerably affect its characteristics [13]. According to research [30][31][32], the solgel approach allows better control over the structure, including porosity and particle size. Additionally, sol-gel is a low-cost, well-established, and adaptable synthesis technique that may be used to produce a wide range of homogeneous micro-and nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Improvement of leakage, magnetic and magnetodielectric properties in cobalt doped gallium ferrite

Jana,

Hait,

Mandal

2023

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Gallium ferrite (GFO) is a magnetoelectric (ME) material, capturing growing attention due to its strong ME coupling at room temperature. However, the application of the material in practical use is hindered due to its high leakage. In this work, the effects of cobalt (Co) substitution at the iron (Fe) sites of GaFe1−x Co x O3 (0.0 ⩽ x ⩽ 0.1) polycrystals on the structure, electric and magnetic properties are investigated in detail. 5 at. wt.% substitution (x = 0.05) with cobalt ions achieves a reduction in leakage current density by four orders of magnitude due to reduced hopping between Fe3+ and Fe2+ ions and suppression of the oxygen vacancy formation. This is supported by higher dielectric constant and lower dielectric loss, as well as a significant difference between grain and grain boundary resistances. Two-phase-like magnetic behavior in magnetic hysteresis loop with enhanced magnetization and two magnetic transition temperatures are observed in the doped samples. All samples exhibited an increase in the magnetodielectric factor, indicating enhanced coupling between magnetic and electrical parameters. By concurrently increasing dielectric, magnetic, and coupling between them, this study describes a viable technique for lowering the most significant impediment to GFO’s usage as a ME device.

show abstract

“…The use of wide band gap semiconductor especially titania as photocatalyst is of attraction because of its low cost and non‐toxic nature. Among many factors that influence the photodegradation efficiency of TiO 2 , the main focus is the physical properties of TiO 2 , which include crystalline phases, crystallinity, particle size, surface area, porosity and morphology . It is generally accepted that anatase phase is much more photoactive than the rutile phase .…”

Section: Introductionmentioning

confidence: 99%

“…Among many factors that influence the photodegradation efficiency of TiO 2 , the main focus is the physical properties of TiO 2 , which include crystalline phases, crystallinity, particle size, surface area, porosity and morphology. [6][7][8][9][10][11] It is generally accepted that anatase phase is much more photoactive than the rutile phase. [12][13][14][15] The sol-gel method is proved to be a convenient synthetic method for the preparation of TiO 2 nano powders of tailored morphological features.…”

Section: Introductionmentioning

confidence: 99%

Dicarboxylic Acids as Soft Templates for the Sol‐Gel Synthesis of Mesoporous Nano TiO₂ with Enhanced Photocatalytic Activity

Bakre

Tilve

2017

ChemistrySelect

View full text Add to dashboard Cite

In this study we have synthesized TiO2 nanoparticles by sol‐gel method utilizing different dicarboxylic acid modifiers viz. oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, malic acid and tartaric acid and compared their properties. The synthesized particles were characterized by Fourier transform infra red spectroscopy (FTIR), ultraviolet diffuse reflectance spectroscopy (UV‐DRS), X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), energy dispersive X‐ray (EDX) and Brunauer‐Emmett‐Teller (BET) surface area measurement. The results indicate that the phase purity of the particles depend on the nature of precursor dicarboxylic acid. The synthesized samples were compared with Degussa P25 for photocatalytic activity by direct sunlight degradation of methylene blue. Samples prepared from malonic and glutaric acid precursors were found to show better photocatalytic activity than the P25 and were found to have maximum mesoporosity, smaller size and exclusive anatase phase.

show abstract

Shape control of nanostructured TiO2 using a Schiff base ligand via sol–gel hydrothermal method

Cited by 17 publications

References 24 publications

Barium and Yttrium Co-doping in Bismuth Ferrite Nanoparticles to Enhance Microwave Properties

Barium and Yttrium Co-doping in Bismuth Ferrite Nanoparticles to Enhance Microwave Properties

Improvement of leakage, magnetic and magnetodielectric properties in cobalt doped gallium ferrite

Dicarboxylic Acids as Soft Templates for the Sol‐Gel Synthesis of Mesoporous Nano TiO₂ with Enhanced Photocatalytic Activity

Contact Info

Product

Resources

About

Shape control of nanostructured TiO2 using a Schiff base ligand via sol–gel hydrothermal method

Cited by 17 publications

References 24 publications

Barium and Yttrium Co-doping in Bismuth Ferrite Nanoparticles to Enhance Microwave Properties

Barium and Yttrium Co-doping in Bismuth Ferrite Nanoparticles to Enhance Microwave Properties

Improvement of leakage, magnetic and magnetodielectric properties in cobalt doped gallium ferrite

Dicarboxylic Acids as Soft Templates for the Sol‐Gel Synthesis of Mesoporous Nano TiO2 with Enhanced Photocatalytic Activity

Contact Info

Product

Resources

About

Dicarboxylic Acids as Soft Templates for the Sol‐Gel Synthesis of Mesoporous Nano TiO₂ with Enhanced Photocatalytic Activity