Controllable synthesis of InTaO4 catalysts of different morphologies using a versatile sol precursor for photocatalytic evolution of H2

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37603-37609 ◽  
Author(s):  
Gui-Sheng Zeng ◽  
Jian Yu ◽  
Hong-Yun Zhu ◽  
Hui-Long Liu ◽  
Qiu-Ju Xing ◽  
...  
Keyword(s):  
Controllable Synthesis ◽  
First Time ◽  
Sol Precursor

For the first time, InTaO4 photocatalysts with different morphologies and structures were facilely prepared using a versatile sol precursor.

Controllable synthesis of Bi4O5Br2 ultrathin nanosheets for photocatalytic removal of ciprofloxacin and mechanism insight

2015 ◽  
Vol 3 (29) ◽  
pp. 15108-15118 ◽  
Author(s):  
Jun Di ◽  
Jiexiang Xia ◽  
Mengxia Ji ◽  
Sheng Yin ◽  
Hongping Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ionic Liquids ◽  
Solvothermal Method ◽  
Ph Control ◽  
Energy Band Structure ◽  
Controllable Synthesis ◽  
Ultrathin Nanosheets ◽  
Photocatalytic Removal ◽  
First Time ◽  
Variable Energy

A novel Bi4O5Br2 ultrathin nanosheets material with 8 nm thickness was prepared via a reactable ionic liquids-assisted solvothermal method accompanied with facile pH control for the first time. The variable energy band structure of Bi4O5Br2 was responsible for the enhanced photocatalytic activity.

scholarly journals Electrospun Sesbania Gum-Based Polymeric N-Halamines for Antibacterial Applications

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1117 ◽  
Author(s):  
Shi Lan ◽  
Yaning Lu ◽  
Jinghua Zhang ◽  
Yanan Guo ◽  
Chun Li ◽  
...  
Keyword(s):  
A549 Cells ◽  
Synthesis Process ◽  
Controllable Synthesis ◽  
Naturally Occurring ◽  
Good Antibacterial Activity ◽  
Initial Polymer ◽  
Sesbania Gum ◽  
Low Cytotoxicity ◽  
First Time ◽  
And Staphylococcus Aureus

Microorganism pollution induced by pathogens has become a serious concern in recent years. In response, research on antibacterial N-halamines has made impressive progress in developing ways to combat this pollution. While synthetic polymer-based N-halamines have been widely developed and in some cases even commercialized, N-halamines based on naturally occurring polymers remain underexplored. In this contribution, we report for the first time on a strategy for developing sesbania gum (SG)-based polymeric N-halamines by a four-step approach Using SG as the initial polymer, we obtained SG-based polymeric N-halamines (abbreviated as cSG-PAN nanofibers) via a step-by-step controllable synthesis process. With the assistance of advanced techniques, the as-synthesized cSG-PAN nanofibers were systematically characterized in terms of their chemical composition and morphology. In a series of antibacterial and cytotoxicity evaluations, the as-obtained cSG-PAN nanofibers displayed good antibacterial activity against Escherichia coli and Staphylococcus aureus, as well as low cytotoxicity towards A549 cells. We believe this study offers a guide for developing naturally occurring polymer-based antibacterial N-halamines that have great potential for antibacterial applications.

scholarly journals A general strategy for controllable synthesis of Ba3(MO4)2:Mn5+ (M = V, P) nanoparticles

RSC Advances ◽  
2017 ◽  
Vol 7 (17) ◽  
pp. 10564-10569 ◽  
Author(s):  
Xiaowen Zhang ◽  
Yang Li ◽  
Zhongliang Hu ◽  
Zhi Chen ◽  
Jianrong Qiu
Keyword(s):  
Fluorescence Imaging ◽  
Near Infrared ◽  
General Strategy ◽  
Controllable Synthesis ◽  
Facile Synthesis ◽  
First Time ◽  
Synthesis Approach ◽  
Infrared Window

The second near-infrared window (NIR-II, 1000–1400 nm) is ideal for fluorescence imaging. We report a facile synthesis approach to prepare Mn5+ doped Ba3(MO4)2 (M = V, P) nanoparticles with emission in the NIR-II region for the first time.

Controllable Synthesis of Porous Tubular Carbon with a Ag+-ligand Assisted Stöber-Silica/Carbon Assembly Process

Nanoscale ◽  
2021 ◽  
Author(s):  
Yang-Lin Shen ◽  
Ning Chen ◽  
Junling Jin ◽  
Peng-Ju Li ◽  
Ting Xu ◽  
...  
Keyword(s):  
Tetraethyl Orthosilicate ◽  
Assembly Process ◽  
Controllable Synthesis ◽  
Ligand Interaction ◽  
Resorcinol Formaldehyde ◽  
Assembly Method ◽  
First Time

Here, we utilize Ag+-ligand interaction critically regulating the morphology of carbon by the Stöber-silica/carbon co-assembly method for the first time. Tetraethyl orthosilicate (TEOS) and resorcinol/formaldehyde (RF) assemble upon dictating by...

One-pot controllable synthesis of CoFe2O4solid, hollow and multi-shell hollow nanospheres as superior anode materials for lithium ion batteries

2017 ◽  
Vol 5 (41) ◽  
pp. 21994-22003 ◽  
Author(s):  
Yun Qi ◽  
Bingqiu Liu ◽  
Lingyu Zhang ◽  
Yuqiu Huo ◽  
Lu Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Large Scale ◽  
Lithium Ion ◽  
Cost Effective ◽  
Hollow Nanospheres ◽  
Controllable Synthesis ◽  
One Pot ◽  
Cost Effective Method ◽  
First Time

CFO-SNSs, CFO-HNSs and MS-CFO-HNSs are controllably fabricated for the first time by a straightforward and cost-effective method on a large scale as superior anode materials for lithium ion batteries.

Controlled synthesis of nanotubes and nanowires decorated with TiO2 nanocuboids with exposed highly reactive (111) facets to produce enhanced photoelectrochemical properties

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91370-91376 ◽  
Author(s):  
Dong Ding ◽  
Bo Zhou ◽  
Shuang Feng ◽  
Li Liu ◽  
Fei Feng ◽  
...  
Keyword(s):  
Hybrid Structure ◽  
Controlled Synthesis ◽  
Photoelectrochemical Properties ◽  
Controllable Synthesis ◽  
First Time

We for the first time achieved a controllable synthesis of TiO2 nanocuboids with highly reactive (111) facets exposed and of a corresponding WT hybrid structure with enhanced photoelectrochemical properties.

Annulate lamellae in the Sertoli cells of guinea pig testis after unilateral torsion of the spermatic cord

1984 ◽  
Vol 42 ◽  
pp. 196-197
Author(s):  
J. Chakraborty ◽  
A. P. Sinha Hikim ◽  
J. S. Jhunjhunwala
Keyword(s):  
Sertoli Cells ◽  
Guinea Pigs ◽  
Spermatic Cord ◽  
Present Report ◽  
Cell Types ◽  
Annulate Lamellae ◽  
Spermatogenic Cells ◽  
Electron Microscopic ◽  
Structural Details ◽  
First Time

Although the presence of annulate lamellae was noted in many cell types, including the rat spermatogenic cells, this structure was never reported in the Sertoli cells of any rodent species. The present report is based on a part of our project on the effect of torsion of the spermatic cord to the contralateral testis. This paper describes for the first time, the fine structural details of the annulate lamellae in the Sertoli cells of damaged testis from guinea pigs.One side of the spermatic cord of each of six Hartly strain adult guinea pigs was surgically twisted (540°) under pentobarbital anesthesia (1). Four months after induction of torsion, animals were sacrificed, testes were excised and processed for the light and electron microscopic investigations. In the damaged testis, the majority of seminiferous tubule contained a layer of Sertoli cells with occasional spermatogonia (Fig. 1). Nuclei of these Sertoli cells were highly pleomorphic and contained small chromatinic clumps adjacent to the inner aspect of the nuclear envelope (Fig. 2).

Electron spectroscopic imaging and diffraction

1991 ◽  
Vol 49 ◽  
pp. 706-707
Author(s):  
M. Rühle ◽  
J. Mayer ◽  
J.C.H. Spence ◽  
J. Bihr ◽  
W. Probst ◽  
...  
Keyword(s):  
Materials Science ◽  
Electron Spectroscopic Imaging ◽  
Magnetic Filter ◽  
Magnetic Imaging ◽  
Illumination System ◽  
Probe Size ◽  
Diffraction Patterns ◽  
Fritz Haber ◽  
Koehler Illumination ◽  
First Time

A new Zeiss TEM with an imaging Omega filter is a fully digitized, side-entry, 120 kV TEM/STEM instrument for materials science. The machine possesses an Omega magnetic imaging energy filter (see Fig. 1) placed between the third and fourth projector lens. Lanio designed the filter and a prototype was built at the Fritz-Haber-Institut in Berlin, Germany. The imaging magnetic filter allows energy-filtered images or diffraction patterns to be recorded without scanning using efficient area detection. The energy dispersion at the exit slit (Fig. 1) results in ∼ 1.5 μm/eV which allows imaging with energy windows of ≤ 10 eV. The smallest probe size of the microscope is 1.6 nm and the Koehler illumination system is used for the first time in a TEM. Serial recording of EELS spectra with a resolution < 1 eV is possible. The digital control allows X,Y,Z coordinates and tilt settings to be stored and later recalled.

A Novel TEM Technique for Characterizing As-Grown CVD Diamond Films

1991 ◽  
Vol 49 ◽  
pp. 956-957 ◽  
Author(s):  
Z.L. Wang ◽  
J. Bentley ◽  
R.E. Clausing ◽  
L. Heatherly ◽  
L.L. Horton
Keyword(s):  
Diamond Films ◽  
Chemical Vapor ◽  
Growth Direction ◽  
Dark Field ◽  
Growth Surface ◽  
Specimen Preparation ◽  
Transmission Electron ◽  
Diffraction Patterns ◽  
First Time ◽  
Microstructural Studies

Microstructural studies by transmission electron microscopy (TEM) of diamond films grown by chemical vapor deposition (CVD) usually involve tedious specimen preparation. This process has been avoided with a technique that is described in this paper. For the first time, thick as-grown diamond films have been examined directly in a conventional TEM without thinning. With this technique, the important microstructures near the growth surface have been characterized. An as-grown diamond film was fractured on a plane containing the growth direction. It took about 5 min to prepare a sample. For TEM examination, the film was tilted about 30-45° (see Fig. 1). Microstructures of the diamond grains on the top edge of the growth face can be characterized directly by transmitted electron bright-field (BF) and dark-field (DF) images and diffraction patterns.

A microscopic marker experiment study on high temperature oxidation of Ni-Al alloy

1986 ◽  
Vol 44 ◽  
pp. 514-515
Author(s):  
Shou-kong Fan
Keyword(s):  
Transport Mechanism ◽  
High Temperature Oxidation ◽  
Transverse Section ◽  
Al Alloy ◽  
Metal Interface ◽  
Electron Microscopic ◽  
Temperature Oxidation ◽  
Analytical Electron ◽  
Microscopic Studies ◽  
First Time

Transmission and analytical electron microscopic studies of scale microstructures and microscopic marker experiments have been carried out in order to determine the transport mechanism in the oxidation of Ni-Al alloy. According to the classical theory, the oxidation of nickel takes place by transport of Ni cations across the scale forming new oxide at the scale/gas interface. Any markers deposited on the Ni surface are expected to remain at the scale/metal interface after oxidation. This investigation using TEM transverse section techniques and deposited microscopic markers shows a different result,which indicates that a considerable amount of oxygen was transported inward. This is the first time that such fine-scale markers have been coupled with high resolution characterization instruments such as TEM/STEM to provide detailed information about evolution of oxide scale microstructure.

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