Synthesis of pure-phase BiFeO3 nanopowder by nitric acid-assisted gel

Wang, Jiangying; Wei, Yinwei; Zhang, Jingji; Ji, Ludong; Huang, Yuexiang; Chen, Zhi

doi:10.1016/j.matlet.2014.03.105

Cited by 62 publications

(21 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 . The absorption band edge of BFO nanoparticles appeared at 563 nm, which was similar to those previously reported 26 , indicating that BFO could respond to visible light for photocatalytic reaction. Compared to pure BFO, the Gd-doped BFO samples exhibited enhanced absorption capability especially in the visible light region, and the absorption intensity became gradually stronger as increasing the Gd dopant content.…”

Section: Resultssupporting

confidence: 88%

Enhanced visible light photocatalytic activity of Gd-doped BiFeO3 nanoparticles and mechanism insight

Zhang

Chen

Niu

et al. 2016

Sci Rep

Self Cite

239

108

View full text Add to dashboard Cite

To investigate the effect of Gd doping on photocatalytic activity of BiFeO3 (BFO), Gd-doped BFO nanoparticles containing different Gd doping contents (Bi(1−x)GdxFeO3, x = 0.00, 0.01, 0.03, 0.05) were synthesized using a facile sol-gel route. The obtained products were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectra, and ultraviolet-visible diffuse reflectance spectroscopy, and their photocatalytic activities were evaluated by photocatalytic decomposition of Rhodamine B in aqueous solution under visible light irradiation. It was found that the Gd doping content could significantly affect the photocatalytic activity of as-prepared Gd-doped BFO, and the photocatalytic activity increased with increasing the Gd doping content up to the optimal value and then decreased with further enhancing Gd doping content. To elucidate the enhanced photocatalytic mechanism of Gd-doped BFO, the trapping experiments, photoluminescence, photocurrent and electrochemical impedance measurements were performed. On the basis of these experimental results, the enhanced photocatalytic activities of Gd-doped BFO could be ascribed to the increased optical absorption, the efficient separation and migration of photogenerated charge carriers as well as the decreased recombination probability of electron-hole pairs derived from the Gd doping effect. Meanwhile, the possible photocatalytic mechanism of Gd-doped BFO was critically discussed.

show abstract

Section: Resultssupporting

confidence: 88%

Enhanced visible light photocatalytic activity of Gd-doped BiFeO3 nanoparticles and mechanism insight

Zhang

Chen

Niu

et al. 2016

Sci Rep

Self Cite

239

108

View full text Add to dashboard Cite

show abstract

“…6 shows the UV-vis diffuse reflectance spectra of the pure BFO and Pt/BFO samples. It can be seen that the absorption edge of pure BFO was about 580 nm, a value slightly higher than those previous reported [38,39], indicating that BFO material could respond to visible light for photocatalytic reaction. In contrast to pure BFO, a distinct feature of the UV-vis absorption spectrum for the Pt/BFO sample was its strong absorption capability in the visible region (up to 700 nm).…”

Section: Materials Characterizationcontrasting

confidence: 58%

Synthesis of Pt/BiFeO3 heterostructured photocatalysts for highly efficient visible-light photocatalytic performances

Niu

Chen

Qin

et al. 2015

Solar Energy Materials and Solar Cells

Self Cite

132

View full text Add to dashboard Cite

“…Numerous synthesis techniques, such as hydrothermal, coprecipitation, molten-salt, thermal decomposition, and sol-gel [30][31][32][33][34][35], have been developed to obtain doped and neat BFO nanoparticles. Among them, a variety of modified solution combustion methods have several advantages: low initialization temperature, fast kinetics of reaction, and homogeneous powder with very fine particles [36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Influence of the La³⁺, Eu³⁺, and Er³⁺ Doping on Structural, Optical, and Electrical Properties of BiFeO₃ Nanoparticles Synthesized by Microwave-Assisted Solution Combustion Method

Wrzesińska

Khort

Bobowska

et al. 2019

Journal of Nanomaterials

View full text Add to dashboard Cite

In this study, nanocrystalline (18–28 nm) perovskite-like bismuth ferrite rare earth-doped powders (Bi0.9RE0.1FeO3, where RE = La (BLaFO), Eu (BEuFO), and Er (BErFO)) were obtained by microwave-assisted modification of solution combustion synthesis (SCS). The influence of high load La3+, Eu3+, and Er3+ doping on structural, optical, and electrical properties of BiFeO3 was investigated. It was found that rare earth doping along with fast phase formation and quenching significantly distorts the crystal cells of the obtained materials, which results in the formation of mixed rhombohedral- (R3c-) orthorhombic (Pbnm) crystal structures with decreased lengths of Bi-O and Fe-O bonds along with a decreasing radius size of doping ions. This promotes reduction of the optical band gap energy and suppression of ionic polarization at high frequencies and results in enhanced dielectric permittivity of the materials at 1 MHz.

show abstract

Synthesis of pure-phase BiFeO3 nanopowder by nitric acid-assisted gel

Cited by 62 publications

References 20 publications

Enhanced visible light photocatalytic activity of Gd-doped BiFeO3 nanoparticles and mechanism insight

Enhanced visible light photocatalytic activity of Gd-doped BiFeO3 nanoparticles and mechanism insight

Synthesis of Pt/BiFeO3 heterostructured photocatalysts for highly efficient visible-light photocatalytic performances

Influence of the La³⁺, Eu³⁺, and Er³⁺ Doping on Structural, Optical, and Electrical Properties of BiFeO₃ Nanoparticles Synthesized by Microwave-Assisted Solution Combustion Method

Contact Info

Product

Resources

About

Synthesis of pure-phase BiFeO3 nanopowder by nitric acid-assisted gel

Cited by 62 publications

References 20 publications

Enhanced visible light photocatalytic activity of Gd-doped BiFeO3 nanoparticles and mechanism insight

Enhanced visible light photocatalytic activity of Gd-doped BiFeO3 nanoparticles and mechanism insight

Synthesis of Pt/BiFeO3 heterostructured photocatalysts for highly efficient visible-light photocatalytic performances

Influence of the La3+, Eu3+, and Er3+ Doping on Structural, Optical, and Electrical Properties of BiFeO3 Nanoparticles Synthesized by Microwave-Assisted Solution Combustion Method

Contact Info

Product

Resources

About

Influence of the La³⁺, Eu³⁺, and Er³⁺ Doping on Structural, Optical, and Electrical Properties of BiFeO₃ Nanoparticles Synthesized by Microwave-Assisted Solution Combustion Method