One-dimensional Bi2WO6 nanofibers have been successfully synthesized by simple electrospinning processes. XRD, SEM and UV-visible diffuse reflectance spectra were used to characterize the nanofibers. The results indic...
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One-dimensional Bi2WO6 nanofibers have been successfully synthesized by simple electrospinning processes. XRD, SEM and UV-visible diffuse reflectance spectra were used to characterize the nanofibers. The results indicated that the Bi2WO6 was composed of one-dimensional nanofibers, whose diameter was about 50 nm. Besides, the Bi2WO6 nanofibers exhibited excellent visible photocatalytic property in the photodegradation of methylene blue.
Novel Bi2WO6 flower type structure has been successfully synthesized by simple hydrothermal processes. Interestingly, the morphologies and sizes of the Bi2WO6 were controlled by pH values. X-ray diffraction, FT-IR, sc...
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Novel Bi2WO6 flower type structure has been successfully synthesized by simple hydrothermal processes. Interestingly, the morphologies and sizes of the Bi2WO6 were controlled by pH values. X-ray diffraction, FT-IR, scanning electron microscope, transmission electron microscope, BET, and UV-visible diffuse reflectance spectra were used to characterize the flower type structure. The results indicated that the Bi2WO6 composed of some uniform slice with side length about 100 nm. The as-prepared Bi2WO6 photocatalysts had excellent photocatalytic activity for the degradation of nitrobenzene under visible light (lambda a parts per thousand yen 400 nm).
Bi2WO6 microbelts have been successfully synthesized by simple electrospinning processes. To the best of our knowledge, this paper is the first report about preparing 1D Bi2WO6 microbelts. TG-DTA, XRD, FT-IR, SEM, BET...
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Bi2WO6 microbelts have been successfully synthesized by simple electrospinning processes. To the best of our knowledge, this paper is the first report about preparing 1D Bi2WO6 microbelts. TG-DTA, XRD, FT-IR, SEM, BET and UV-visible diffuse reflectance spectra were used to characterize the belts. The results indicated that the width of belts was about 1.5 mu m. And the surface structure of belts was consisted of Bi2WO6 nanoplates. Besides, the Bi2WO6 microbelts exhibited excellent visible photocatalytic property in the photodegradation of methylene blue (MB). Meanwhile, preparation of the photocatalyst using electrospinning was helpful for recycling. What is more, Formed fibers coefficient by electrospinning was proved and obtained (K = QU/d eta). So, the work has a great application value in the future. (c) 2013 Elsevier B. V. All rights reserved.
TiO2/Bi2WO6 composite nanofibers have been successfully synthesized by a simple electrospinning process. XRD, SEM, HR-TEM, nitrogen adsorption-desorption isotherms and UV-visible diffuse reflectance spectra were used ...
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TiO2/Bi2WO6 composite nanofibers have been successfully synthesized by a simple electrospinning process. XRD, SEM, HR-TEM, nitrogen adsorption-desorption isotherms and UV-visible diffuse reflectance spectra were used to characterize the composite nanofibers. The composite fibers with diameters about 100 nm was composed of nanoparticles and possessed of high specific surface area (49.6 m(2) g(-1)) and porous structure. Besides, the TiO2/Bi2WO6 composite nanofibers exhibited excellent visible photocatalytic property in the photodegradation of methylene blue (MB), and over 97.2 % of MB was degraded within 5.5 h.
In this study, we identified 34 CCCH Znf genes in Medicago truncatula and the results of semi-quantitative RT-PCR revealed that the expression patterns of subfamily VI members were diverse. CCCH-type zinc finger (Znf)...
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In this study, we identified 34 CCCH Znf genes in Medicago truncatula and the results of semi-quantitative RT-PCR revealed that the expression patterns of subfamily VI members were diverse. CCCH-type zinc finger (Znf) proteins are specific transcriptional factors with a typical motif consisting of three cysteine residues and one histidine residue. Increasing evidences have revealed that CCCH Znf proteins participated in the regulation of plant growth, developmental processes and environmental responses. Survey and characterization of CCCH Znf genes in leguminous species would facilitate a better understanding of the evolutionary processes and functions of this gene family. In this study, we performed a comprehensive analysis of CCCH Znf genes in M. truncatula by describing the phylogenetic relationships, chromosomal location and gene structure of each family member. A total of 34 CCCH Znf genes were identified in the latest M. truncatula genome sequence. The 34 predicted members were clustered into nine subfamilies based on their phylogenetic analysis and structure features. In addition, the 34 Medicago CCCH Znf genes were found to be unevenly distributed on eight chromosomes. Furthermore, the expression profiles of subfamily VI were investigated under different stress conditions (PEG-6000, NaCl and ABA) by using semi-quantitative RT-PCR. The data showed that these genes displayed different expression levels in response to various stress conditions. The results presented in this study provide basic information about Medicago CCCH Znf genes and form a fundamental clue for cloning genes with specific functions in further studies and applications.
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