Preparation of SnO nanotubes a template-free electrospinning process.

A facile and environmentally friendly template-free method is developed for the fabrication of SnO nanotubes electrospinning and precisely controlled heat treatment method. It is revealed that the as-spun solid SnO precursor fibers gradually transformed into hollow-structured nanotubes when the temperature was controlled precisely from 200 °C to 600 °C. It was confirmed, that this remarkable structural evolution corporate the respective thermal decomposition of polyvinyl butyral (PVB) at the surface and inside of the fibers.

Aggregation-induced enhanced emission-type cruciform luminophore constructed by carbazole exhibiting mechanical force-induced luminescent enhancement and chromism.

One D-A type cruciform luminophore MDCS-BC based on carbazole has been prepared. We observed that this compound exhibits unique intramolecular charge-transfer (ICT) and typical aggregation-induced enhanced emission (AIEE) properties with the solid-state luminescence efficiency of 0.184.

[Network pharmacology research on high frequency use of Tibetan medicine in treatment of HAPC based on data mining].

Based on the results of previous data mining,the mechanism of high frequency use of Tibetan medicine in the treatment of high altitude polycythemia(HAPC) was analyzed in this study by network pharmacology. The author obtained the high frequency use data on Tibetan medicine Terminalia chebula,Aucklandia lappa,Crocus sativus and Myristica fragrans for the treatment of HAPC by data mining in the previous period. The first five main active ingredients of each high frequency Tibetan medicine were screened out by reviewing comprehensive literature and TCMSP database.

[Study on regularity of drug use in Tibetan medicine treating hypertension based on multi-center clinical medical records and "prescription-property-efficacy-disease"].

This study aimed to explore the rule of Tibetan medicine in clinical treatment of hypertension( k Hrag-rLung-stod-vtshangs) and analyze the characteristics of its prescriptions. One hundred and thirty-seven cases of hypertension treated Tibetan medicine were collected. Data mining,Gephi,Cytoscape and other methods and software were used to analyze the characteristics of Tibetan medicine.

Low-cost and environmentally friendly synthesis of an Al and Mn co-doped LiTiO composite with carbon quantum dots as an anode for lithium-ion batteries.

To increase the specific capacity and conductivity of lithium titanate (LTO), low-cost and environmentally friendly carbon quantum dots (CQDs) were used to composite with Al and Mn co-doped LiTiO (LTO-Al/Mn) to improve its electrical properties. The Al and Mn were successfully substituted for Ti located at (16d) sites in the LTO and the CQDs formed a composite with LTO-Al/Mn. The specific capacity of the first cycle at 0.

Preparation, crystal structure and luminescence properties of a novel single-phase red emitting phosphor CaSr(PO):Sm,Li.

Single-phase CaSr(PO):Sm,Li phosphors were prepared a high-temperature solid-state method under air. The powder X-ray diffraction patterns, scanning electron microscopy images, photoluminescence spectra, and concentration-dependent emission spectra were measured to characterize the as-prepared phosphors and luminescence decay curves. The results showed that the CaSr(PO):Sm,Li phosphors exhibited red luminescence, and the emission spectra of the phosphors consisted of four sharp peaks at around 565, 601 (the strongest one), 647 and 707 nm.

Structure and luminescence properties of LaBa(SiO)F:Dy phosphor with apatite structure.

In this study, we investigated the structure, luminescence properties and morphology of LaBa(SiO)F:Dy in detail using X-ray diffraction (XRD), photoluminescence spectroscopy, scanning electron microscopy (SEM) and decay kinetics measurements. The results indicate that LaBa(SiO)F:Dy was well crystallized, and its structure is of apatite-type and belongs to the hexagonal system. The prepared samples exhibit two intense characteristic bands in the blue (484 nm) and yellow (579 nm) spectral ranges corresponding to the Dy transitions F → H and F → H, respectively.

Preparation and fire behavior of rigid polyurethane foams synthesized from modified urea-melamine-formaldehyde resins.

In this study, a series of ethylene glycol modified urea-melamine-formaldehyde resins (EUMFs) were synthesized from urea, melamine, paraformaldehyde and ethylene glycol, and then incorporated into rigid polyurethane foams (RPUFs) as a reactive-type liquid flame retardant. The structure of EUMFs was characterized by Fourier transform infrared spectrometry; the morphology of the foams was characterized by scanning electron microscopy; and the thermal degradation and fire behavior of RPUFs were characterized by limiting oxygen index (LOI), cone calorimetry test and thermogravimetry analysis. The results show that the incorporation of EUMFs results in an increase in thermal stability, smoke suppression and LOI of RPUFs.

Crystal structure and luminescence properties of a novel single-phase orange-red emitting phosphor CaLa (PO):Sm.

CaLa (PO):Sm phosphors (0.01 < < 0.25) were synthesized high temperature solid-state reaction.

green oxidation synthesis of Ti and N self-doped SrTiO N nanoparticles with enhanced photocatalytic activity under visible light.

A simple green oxidation synthesis route was developed to prepare Ti and N self-doped SrTiO N nanoparticles using TiN and HO as precursors. X-ray diffraction (XRD), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) were used to characterize the crystallinity, structure and morphology. X-ray photoelectron spectroscopy (XPS) tests confirmed the presence of Ti and N in the prepared SrTiO N nanoparticles.