Photocatalytic performances of BiFeO3 particles with the average size in nanometer, submicrometer, and micrometer

Hao, Chunxue; FushengWen,; Xiang, Jianyong; Hou, Hang; Lv, Weiming; Lv, Yifei; Hu, Wentao; Liu, Zhongyuan

doi:10.1016/j.materresbull.2013.11.039

Cited by 44 publications

(11 citation statements)

References 26 publications

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“…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: 59%

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

132

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Section: Materials Characterizationcontrasting

confidence: 59%

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

132

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“…The conversion of photon energy into chemical energy has become of interest not only for photoinduced water splitting as an environmentally friendly methodt op roduce hydrogen but also forw ater and air purification by the oxidation of pollutants andr eduction of CO 2 . [2,3] In the last few years, diverse Bi-containing visible-light-driven photocatalysts, such as Bi 2 O 3 , [4,5] Bi 2 O 2 CO 3 , [6] BiFeO 3 , [7] Bi 2 WO 6 [8] ,a nd Bi 2 MoO 6 [9] and bismuth titanates Bi 4 Ti 3 O 12 ,B i 12 TiO 20 ,a nd (Bi 2Àx Ti 0.75x )Ti 2 O 7 , [10] have been investigated intensely. [11] BiVO 4 is among the most promising candidates and, in addition to high photocatalytic activity, it offers low toxicitya nd negligible photocorrosion.…”

Section: Introductionmentioning

confidence: 99%

Nonaqueous Synthesis of a Bismuth Vanadate Photocatalyst By Using Microwave Heating: Photooxidation versus Photosensitized Decomposition in Visible‐Light‐Driven Photocatalysis

et al. 2015

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A new synthetic route to monoclinic bismuth vanadate using a concept adapted from a nonaqueous synthesis strategy for nanostructured organic–inorganic hybrid materials and metal oxides, introduced recently as twin polymerization, is reported. Microwave‐assisted synthesis starting from bismuth(III) tert‐butoxide and vanadium(V) oxytri(tert‐butoxide) in the presence of 2‐methoxybenzyl alcohol, 2,4‐dimethoxybenzyl alcohol, and 2‐(2‐thienyl)iso‐propyl alcohol gave hybrid materials, which were characterized by solid‐state 13C NMR spectroscopy, CH analysis, atomic absorption spectroscopy, and energy dispersive X‐ray spectroscopy. Subsequent pyrolysis resulted in nanoscale monoclinic bismuth vanadate that showed a high photocatalytic activity. The photocatalytic decomposition of model pollutants such as rhodamine B (RhB), methyl orange, methylene blue, and orange G under visible‐light irradiation using the as‐prepared bismuth vanadate samples was studied with a focus on the influence of the agglomeration behavior. The interplay between the photooxidation of RhB, induced by the excitation of the catalyst using visible light, and the photosensitized decomposition pathway is demonstrated by degradation experiments in solution and the solid state.

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“…In spite of the reduced photocatalytic performance for further La addition (x = 0.15), due to the decreasing of dielectric constant and then the narrow space-charge region the photodegradation of MB dye in the presence of the Bi 0.85 La 0.15 FeO 3 nanoparticles is still higher than that of the unsubstituted BiFeO 3 nanoparticles, which may be due to the smaller particle size (figure 4) and hence the larger specific surface area and reactive sites [45].…”

Section: Resultsmentioning

confidence: 99%

Structural, magnetic and photocatalytic characterization of Bi1−x La x FeO3 nanoparticles synthesized by thermal decomposition method

Masoudpanah

Mirkazemi

et al. 2017

Bull Mater Sci

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Single-phase La-substituted bismuth ferrite (Bi 1−x La x FeO 3) nanoparticles have been synthesized by thermal decomposition of a glyoxylate precursor. The crystal structure transition of BiFeO 3 from the rhombohedral (R3c) to the cubic P m3m structure by La addition was confirmed by X-ray diffraction and infrared spectrometry methods. Furthermore, the Bi 1−x La x FeO 3 nanoparticles showed a weak ferrimagnetism behaviour, while the magnetization increased from 0.18 to 0.48 emu g −1 with La substitution. The Bi 1−x La x FeO 3 nanoparticles exhibited strong absorption in the visible region with the optical band gap calculated from Tauc's plot in the range of 2.19-2.15 eV. Furthermore, the effects of La substitution on the photodegradation of the methylene blue (MB) under visible light were also studied. The photodegradation of MB dye was enhanced from 64 to ∼99% with increasing La substitution from x = 0 to 0.1 and then decreased to 8% for x = 0.15.

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Photocatalytic performances of BiFeO3 particles with the average size in nanometer, submicrometer, and micrometer

Cited by 44 publications

References 26 publications

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

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

Nonaqueous Synthesis of a Bismuth Vanadate Photocatalyst By Using Microwave Heating: Photooxidation versus Photosensitized Decomposition in Visible‐Light‐Driven Photocatalysis

Structural, magnetic and photocatalytic characterization of Bi1−x La x FeO3 nanoparticles synthesized by thermal decomposition method

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