BiPO4@glucose-based C core–shell nanorod heterojunction photocatalyst with enhanced photocatalytic activity

She, Liaona; Tan, Guoqiang; Ren, Huijun; Xu, Chen; Zhao, Chengcheng; Xia, Ao

doi:10.1016/j.jallcom.2015.12.012

Cited by 24 publications

(7 citation statements)

References 45 publications

(37 reference statements)

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“…It is worth noting that the absence of carbon diffraction peaks means that the carbon is in an amorphous state or has low crystallinity, as shown in Figure 1B. This is consistent with the data published in open literature 18,19 . Obviously, there are no secondary phases related to La ion, suggesting that La ion has been completely incorporated into the spinel lattice.…”

Section: Resultssupporting

confidence: 89%

Facile synthesis of La‐doped cobalt ferrite@glucose‐based carbon composite as effective multiband microwave absorber

et al. 2021

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C/CoLaxFe2−xO4 (with x = 0.1, 0.2, 0.3) composites were compounded by using a high‐temperature hydrolysis. X‐ray Diffraction (XRD) and X‐ray Photoelectron Spectroscopy (XPS) results show that doping of La ions does not alter the spinel crystal structure and partially replaces Fe ions. Results of Field‐Emission Scanning Electron Microscope (FESEM) and Energy Dispersive Spectroscopy (EDS) mapping prove that with the doping of La ions, the grains are refined, and the carbon shell on the surface exists. The effect of doping of La ions on microwave absorption performance of the composites was systematically studied. It is found that an optimal reflection loss (RL) of −49.56 dB is achieved at 4.96 GHz, as the composition is C/CoLa0.2Fe1.8O4. Meanwhile, the sample C/CoLa0.3Fe1.7O4 shows excellent effective absorption bandwidth. Specifically, when the matching thicknesses are 4 and 5 mm, the effective absorption bandwidth is 4 GHz, covering the C band and Ku band, thus realizing multiband absorption. The synergistic effects of the enhanced dipole polarization related to the doping of La ions, improved interface polarization of the core‐shell structure, and the magnetic loss originated from CoLaxFe2−xO4 are responsible for the optimal microwave absorption performance. Therefore, this C/CoLaxFe2−xO4 composite material has the prospect of a multiband high‐efficiency microwave absorber.

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Section: Resultssupporting

confidence: 89%

Facile synthesis of La‐doped cobalt ferrite@glucose‐based carbon composite as effective multiband microwave absorber

et al. 2021

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“…No. 89-0287) [12]. No characteristic peaks were observed for other impurities, such as surfactant, further implying the purity of the BiPO 4 .…”

Section: Characterizationsmentioning

confidence: 91%

Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach

Vadivel

Maruthamani

Kumaravel

et al. 2017

Journal of Taibah University for Science

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BiPO 4 nanomaterial was synthesized using EDTA (ethylene diamine tetra acetic acid) as the surfactant via a simple microwave method. The structure and morphology of BiPO 4 were systematically characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and scanning electron microscopy (FE-SEM) studies. The obtained BiPO 4 nanoparticles were, on average, 150-300 nm. The electrochemical results showed that the specific capacitance of BiPO 4 obtained using the microwave route was up to 104 Fg −1 at a current density of 1 Ag −1 with a large potential window of 1.7 V. The material showed excellent cycling stability (92% capacitance retention) after 500 cycles at a current density of 1 Ag −1 .

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“…In Fig. 3a, the α-Fe 2 O 3 contain peaks (black masks) at 224 cm −1 , 289 cm −1 and 407 cm −1 26. The FeVO 4 contain peaks (red masks) at 323 cm −1 , 368 cm −1 , 630 cm −1 , 658 cm −1 , 700–950 cm −1 and 965 cm −1 3031323334.…”

Section: Resultsmentioning

confidence: 95%

“…First, after the raw materials of FeCl 3 ·H 2 O and NH 4 VO 3 being dissolved in the water, the FeVO 4 and Fe(OH) 3 crystal seeds are produced first, as shown in equations 1, 2, 3, 4, 5 2526. In the precursors, the FeVO 4 colloidal particles with extra VO 3 − ions distributing around can absorb the oppositely charged NH 4 + ions, forming the [FeVO 4 ·VO 3 − ]NH 4 + micelles (equation 6, Fig.…”

Section: Resultsmentioning

confidence: 99%

Fast interfacial charge transfer in α-Fe2O3−δCδ/FeVO4−x+δCx−δ@C bulk heterojunctions with controllable phase content

Zhao

Tan

Yang

et al. 2016

Sci Rep

Self Cite

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The novelties in this paper are embodied in the fast interfacial charge transfer in α-Fe2O3−δCδ/FeVO4−x+δCx−δ@C bulk heterojunctions with controllable phase compositions. The carbon source-glucose plays an important role as the connecting bridge between the micelles in the solution, forming interfacial C-O, C-O-Fe and O-Fe-C bonds through dehydration and polymerization reactions. Then the extra VO3− around the FeVO4 colloidal particles can react with unstable Fe(OH)3, resulting the phase transformation from α-Fe2O3 (47.99–7.16%) into FeVO4 (52.01–92.84%), promoting photocarriers’ generation capacities. After final carbonization, a part of C atoms enter into lattices of α-Fe2O3 and FeVO4, forming impurity levels and oxygen vacancies to increase effective light absorptions. Another part of C sources turn into interfacial carbon layers to bring fast charge transfer by decreasing the charge transition resistance (from 53.15 kΩ into 8.29 kΩ) and the surface recombination rate (from 64.07% into 7.59%). The results show that the bulk heterojunction with 90.29% FeVO4 and 9.71% α-Fe2O3 shows ideal light absorption, carriers’ transfer efficiency and available photocatalytic property. In general, the synergistic effect of optimized heterojunction structure, carbon replacing and the interface carbon layers are critical to develop great potential in stable and recoverable use.

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BiPO4@glucose-based C core–shell nanorod heterojunction photocatalyst with enhanced photocatalytic activity

Cited by 24 publications

References 45 publications

Facile synthesis of La‐doped cobalt ferrite@glucose‐based carbon composite as effective multiband microwave absorber

Facile synthesis of La‐doped cobalt ferrite@glucose‐based carbon composite as effective multiband microwave absorber

Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach

Fast interfacial charge transfer in α-Fe2O3−δCδ/FeVO4−x+δCx−δ@C bulk heterojunctions with controllable phase content

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BiPO4@glucose-based C core–shell nanorod heterojunction photocatalyst with enhanced photocatalytic activity

Cited by 24 publications

References 45 publications

Facile synthesis of La‐doped cobalt ferrite@glucose‐based carbon composite as effective multiband microwave absorber

Facile synthesis of La‐doped cobalt ferrite@glucose‐based carbon composite as effective multiband microwave absorber

Supercapacitors studies on BiPO4 nanoparticles synthesized via a simple microwave approach

Fast interfacial charge transfer in α-Fe2O3−δCδ/FeVO4−x+δCx−δ@C bulk heterojunctions with controllable phase content

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Supercapacitors studies on BiPO₄ nanoparticles synthesized via a simple microwave approach