Urchin-like m -LaVO 4 and m -LaVO 4 /Ag microspheres: Synthesis and characterization

Chen, Limiao; Wu, Min; Wang, Dan; Zhou, Le; Yu, Ning; Zhang, Peisen; Huang, Jianhan; Liu, Xiaohe; Qiu, Guanzhou

doi:10.1016/j.matchar.2014.10.021

Cited by 13 publications

(2 citation statements)

References 44 publications

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“…By careful control of reaction parameters undesirable side reactions or phase transformations are minimized and lead to reduced defects as well as enhanced reaction rate and scaleability. Thus, this method is widely used to synthesize hollow spheres [ 12 , 13 ], one-dimensional materials such as tubes and wires [ 14 , 15 ], two-dimensional materials [ 16 , 17 ], and heterostructured materials [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of Bismuth Ferrite Hollow Spheres with Enhanced Visible-Light Photocatalytic Activity

et al. 2023

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In recent years, semiconductor hollow spheres have gained much attention due to their unique combination of morphological, chemical, and physico-chemical properties. In this work, we report for the first time the synthesis of BiFeO3 hollow spheres by a facile hydrothermal treatment method. The mechanism of formation of pure phase BiFeO3 hollow spheres is investigated systematically by variation of synthetic parameters such as temperature and time, ratio and amount of precursors, pressure, and calcination procedures. The samples were characterized by X-ray powder diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and UV-vis diffuse reflectance spectroscopy. We observe that the purity and morphology of the synthesized materials are very sensitive to synthesis parameters. In general, the chemically and morphologically very robust hollow spheres have diameters in the range of 200 nm to 2 μm and a wall thickness of 50–200 nm. The synthesized BiFeO3 hollow spheres were applied as catalysts in the photodegradation of the model pollutant Rhodamine B under visible-light irradiation. Notably, the photocatalyst demonstrated exceptionally high removal efficiencies leading to complete degradation of the dye in less than 150 min at neutral pH. The superior efficiencies of the synthesized material are attributed to the unique features of hollow spheres. The active species in the photocatalytic process have been identified by trapping experiments.

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Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of Bismuth Ferrite Hollow Spheres with Enhanced Visible-Light Photocatalytic Activity

et al. 2023

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“…Increasing environmental problems and the shortage of sustainable energy sources have driven considerable research efforts on photocatalytic pollutant degradation and water splitting by using visible light, which is abundanti nt he solar spectrum. Many metal oxide semiconductors such as BiVO 4 , [1,2] LaVO 4 , [3] Bi 2 O 3 , [4] WO 3 , [5] Fe 2 O 3 , [6] and Cu 2 O [7] have been developed as photocatalystsw ith visible-light activities. Among these semiconductors, BiVO 4 has been recognizeda sap otentially suitable visible-light photocatalyst for organic contaminant degradation and oxygen generation owing to its good characteristics such as its narrow bandgap (E g = 2.4 eV), nontoxicity, and chemical and electrochemical stability in aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Hollow BiVO₄/Ag Composite Microspheres and Their Photocatalytic and Surface‐Enhanced Raman Scattering Properties

Chen

et al. 2015

ChemPlusChem

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Hollow BiVO4 microspheres are prepared in the presence of ethylenediaminetetraacetic acid (EDTA) through a hydrothermal method, and used as a template for the fabrication of Ag‐nanoparticle‐decorated BiVO4 (BiVO4/Ag) composite microspheres. The morphology and structure are characterized by transmission electron microscopy and scanning electron microscopy. It is found that EDTA plays an important role in the formation of the hollow microspheres, and the possible formation mechanism is discussed. UV/visible spectrometry analysis shows that the BiVO4/Ag composite microspheres exhibit a distinct surface plasmon absorption band compared with pure BiVO4 microspheres. The photocatalytic activities of the BiVO4/Ag composite microspheres are examined by studying the degradation of rhodamine 6G (R6G) solutions under visible‐light irradiation (>400 nm). The results show clearly that the BiVO4/Ag composite microspheres possess a much higher photocatalytic activity than pure BiVO4 microspheres and P25. In addition, Raman analyses show that the BiVO4/Ag composite microspheres exhibit an excellent surface‐enhanced Raman scattering (SERS) performance.

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Construction of novel CNT/LaVO4 nanostructures for efficient antibiotic photodegradation

Liu

Jing

et al. 2019

Chemical Engineering Journal

179

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Urchin-like m -LaVO 4 and m -LaVO 4 /Ag microspheres: Synthesis and characterization

Cited by 13 publications

References 44 publications

Hydrothermal Synthesis of Bismuth Ferrite Hollow Spheres with Enhanced Visible-Light Photocatalytic Activity

Hydrothermal Synthesis of Bismuth Ferrite Hollow Spheres with Enhanced Visible-Light Photocatalytic Activity

Synthesis of Hollow BiVO₄/Ag Composite Microspheres and Their Photocatalytic and Surface‐Enhanced Raman Scattering Properties

Construction of novel CNT/LaVO4 nanostructures for efficient antibiotic photodegradation

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Urchin-like m -LaVO 4 and m -LaVO 4 /Ag microspheres: Synthesis and characterization

Cited by 13 publications

References 44 publications

Hydrothermal Synthesis of Bismuth Ferrite Hollow Spheres with Enhanced Visible-Light Photocatalytic Activity

Hydrothermal Synthesis of Bismuth Ferrite Hollow Spheres with Enhanced Visible-Light Photocatalytic Activity

Synthesis of Hollow BiVO4/Ag Composite Microspheres and Their Photocatalytic and Surface‐Enhanced Raman Scattering Properties

Construction of novel CNT/LaVO4 nanostructures for efficient antibiotic photodegradation

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Synthesis of Hollow BiVO₄/Ag Composite Microspheres and Their Photocatalytic and Surface‐Enhanced Raman Scattering Properties