Polyacrylamide gel synthesis and photocatalytic performance of Bi2Fe4O9 nanoparticles

Zhang, M.; Yang, Hua; Tang, Xian; Wei, Zhiqiang; Jiang, Jizhou; Feng, Yuhan; Liu, Dage

doi:10.1016/j.jallcom.2010.09.097

Cited by 72 publications

(31 citation statements)

References 31 publications

(32 reference statements)

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“…Recently, some studies have shown that Bi 2 Fe 4 O 9 can also be regarded as a visible-light photocatalyst for degradation of organic pollutants due to its small band gap (*2.0 eV). It was reported that Bi 2 Fe 4 O 9 nanoparticles could effectively decompose methyl red under the visible-light irradiation, displaying excellent photocatalytic activity [5]. In addition, the morphologydependent photocatalytic property of Bi 2 Fe 4 O 9 was also revealed.…”

Section: Introductionmentioning

confidence: 94%

Enhanced photocatalytic activity in Al-substituted Bi2Fe4O9 submicrocrystals

Liu

Yin

et al. 2012

J Mater Sci

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Bi 2 (Fe 1-x Al x ) 4 O 9 (x = 0, 0.1, 0.3, 0.5, and 0.7) samples were synthesized by a simple hydrothermal method. The samples were characterized by X-ray diffraction, scanning electron microscopy, Fourier transformed infrared spectra, N 2 -sorption, and UV-Vis diffuse reflectance spectra, and their photocatalytic activities were evaluated by the degradation of methyl orange under visible-light irradiation. The results reveal that the Al substitution can effectively improve photocatalytic performance, which is attributed to the increase of surface area, the improvement of energy band structure, and the distortion of the Fe-O octahedron in Al-substituted samples. In addition, it is found that the photocatalytic activity to decompose methyl orange under visible-light illumination increases monotonically as x increases from zero to 0.5 in Bi 2 (Fe 1-x Al x ) 4 O 9 and then decreases for x = 0.7, which is believed to be associated with the distribution of Fe 3? ions over the octahedral and tetrahedral sites.

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Section: Introductionmentioning

confidence: 94%

Enhanced photocatalytic activity in Al-substituted Bi2Fe4O9 submicrocrystals

Liu

Yin

et al. 2012

J Mater Sci

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“…Bi 2 Fe 4 O 9 with mullite structure is one of the most extensively studied Bismuth-based oxides. In addition to its outstanding multiferroic property and gas sensitivity 6,7) , Bi 2 Fe 4 O 9 also exhibits a pronounced photocatalytic activity toward the degradation of organic dyes, phenol, and aqueous ammonia under visible light irradiation [8][9][10][11][12][13][14][15][16][17][18] . Moreover, the photocatalytic activity of Bi 2 Fe 4 O 9 can be improved by doping with metallic elements, ethylenediaminetetraacetic acid (EDTA) modi cation, and composite with graphene [19][20][21][22][23] .…”

Section: Introductionmentioning

confidence: 99%

“…For example, Bi 2 Fe 4 O 9 nanosheets tend to exhibit high visible-light photocatalytic activity that is absent in Bi 2 Fe 4 O 9 microplatelets 8) . To tailor its photocatalytic property, Bi 2 Fe 4 O 9 with different morphologies, including nanoplates, nanosheets, nanorods, nanoparticles, nanocubes, and nano bers, have been prepared via various chemical methods [8][9][10][11][12][13][14][15][16][17][18] . Among these methods, the hydrothermal route has been proven to be an effective and convenient process in fabricating nanomaterials with controlled morphology.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Photocatalytic Activity of Bi2Fe4O9 Using KOH as Mineralizer via Hydrothermal Method

Tang

et al. 2016

Mater. Trans.

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Bi 2 Fe 4 O 9 nanoplatelets were successfully prepared via hydrothermal method using KOH as the mineralizer. The in uence of KOH concentration on the morphology of the products was investigated. It is found that the thickness and edge length of as-prepared Bi 2 Fe 4 O 9 nanoplatelets can be tailored by adjusting the KOH concentration. With increase in the KOH concentration from 3 to 9 M, the thickness of nanoplatelets increases gradually, whereas their edge length exhibits a trend of decrease. A possible in uencing mechanism of the KOH concentration on the morphology of Bi 2 Fe 4 O 9 nanoplatelets is proposed on the basis of experimental results. The photocatalytic activity of Bi 2 Fe 4 O 9 nanoplatelets was investigated by the degradation of methylene blue under simulated sunlight irradiation, indicating that they possess an appreciable photocatalytic activity. Furthermore, the as-prepared Bi 2 Fe 4 O 9 nanoplatelets present good photocatalytic reusability. Magnetic hysteresis loop measurement shows that the Bi 2 Fe 4 O 9 nanoplatelets exhibit weak ferromagnetic behavior at room temperature.

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“…To date, the spectra of the well-known UV photocatalyst TiO 2 has been extended from UV to visible region by doping approach [1,2], introducing disorder [3], modifying [4], or forming composites [5][6][7]. Alternatively, much more efforts have focused on to the development of new visible light-driven photocatalysts, e.g., Bi 2 Fe 4 O 9 , Bi 2 WO 6 and CuO/BiVO 4 composite [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of visible light-driven AgCl/PPy photocatalyst

Zhao

et al. 2011

Journal of Alloys and Compounds

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Polyacrylamide gel synthesis and photocatalytic performance of Bi2Fe4O9 nanoparticles

Cited by 72 publications

References 31 publications

Enhanced photocatalytic activity in Al-substituted Bi2Fe4O9 submicrocrystals

Enhanced photocatalytic activity in Al-substituted Bi2Fe4O9 submicrocrystals

Synthesis and Photocatalytic Activity of Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> Using KOH as Mineralizer via Hydrothermal Method

Preparation and characterization of visible light-driven AgCl/PPy photocatalyst

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