We report a facile solvothermal synthesis of reduced graphene oxide/Zn 0.8 Cd 0.2 S (GZCS) hybrid nanomaterial as a photocatalyst, in which Zn 0.8 Cd 0.2 S nanoparticles were homogeneously distributed on the surface o...
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We report a facile solvothermal synthesis of reduced graphene oxide/Zn 0.8 Cd 0.2 S (GZCS) hybrid nanomaterial as a photocatalyst, in which Zn 0.8 Cd 0.2 S nanoparticles were homogeneously distributed on the surface of reduced graphene oxide (RGO), showing a good visible light response. The photocatalytic activities for as-prepared GZCS were evaluated by the degradation of methylene blue (MB) in aqueous solution under visible light irradiation. The results showed that the GZCS had higher photocatalytic activity than pure Zn 0.8 Cd 0.2 S. The GZCS with 5 wt% RGO content exhibited the highest photodegradation efficiency of MB (96%), which was 2.7 times of pure Zn 0.8 Cd 0.2 S. And it also showed high photocatalytic stability.
Major advancement of development trends of carbon fibrous reinforced oxidization-resistant and thermal structural composites materials at home and aboard. Including the oxidation mechanism of carbon/carbon, ceramic ma...
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Major advancement of development trends of carbon fibrous reinforced oxidization-resistant and thermal structural composites materials at home and aboard. Including the oxidation mechanism of carbon/carbon, ceramic matrix composites and some significant breakthroughs in the technology. Analysis of carbon/carbon composites oxidization-resistant paintcoat system used in high temperature and oxidization-resistant mechanism. The breakthroughs and progress in our country are also introdued.
In order to investigate the characterization methods for pore structure of nano-porous super thermal insulating materials, mercury porosimetry and gas sorption were used at the same time. The test results indicate tha...
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In order to investigate the characterization methods for pore structure of nano-porous super thermal insulating materials, mercury porosimetry and gas sorption were used at the same time. The test results indicate that two mechanisms are presented during porosimetry experiments: compression and mercury intrusion, and Euler's law must be applied to determine the pore size distribution in the period of compression. Gas sorption experiments reveal that the results are affected by experiment instruments. The difference of pore volume and pore size distribution in same pore size ranges obtained by mercury porosimetry and gas sorption is obvious. With the increase of sample density, the mensurative rate of pore volume obtained by gas sorption increases and gradually approaches to that obtained by mercury porosimetry, the difference of pore volume between two gas sorption instruments decreases at the same time. When the sample density reach to 830 kg/cm3, the usual Washburn equation can be used to determine the pore size distributions, which are agree with the results of mercury porosimetry experiments.
The synthesis, structural, electrochemical and photophysical studies of a series of cyclometalated iridium(III) complexes with functionalized borylated oligothiophene ligands are reported. The effect of oligothiophene...
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Recent developments in polymer-based controlled delivery systems have made a significant clinical impact. The second Symposium on Innovative Polymers for Controlled Delivery (SIPCD) was held in Suzhou, China to addres...
Recent developments in polymer-based controlled delivery systems have made a significant clinical impact. The second Symposium on Innovative Polymers for Controlled Delivery (SIPCD) was held in Suzhou, China to address the key challenges and provide up-to-date progress and future perspectives in the innovation of polymer-based therapeutics. At SIPCD, a stimulating panel discussion was introduced for the first time on “What is the future of nanomedicine?” This report highlights the most recent research and developments in biomedical polymers and nanomedicine made by 29 invited scientists from around the world, as well as important issues regarding clinical advancements of nanomedicine conferred during the panel discussion.
A variety of intermetallic compounds in the binary Sm Co system were reviewed, and the contents were focused on the crystal structures, magnetic properties and the nanoscale effects. The representative nanocrystalline...
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A variety of intermetallic compounds in the binary Sm Co system were reviewed, and the contents were focused on the crystal structures, magnetic properties and the nanoscale effects. The representative nanocrystalline Sm-Co compounds were introduced in details, the diagrams for their lattice structures and the atomic sites and occupancies were provided. Moreover, the magnetic properties of the nanocrystalline Sm-Co compounds were compared with those of the conventional polycrystalline counterparts. It showed that the nanocrystalline Sm Co compounds exhibit special phase stability and remarkably enhanced magnetic performance, which are promising candidates for the matrix phases to develop permanent magnets, particularly the advanced high-temperature magnetic materials.
Using the adaptive time-dependent density-matrix renormalization group method,the dynamics of entanglement and quantum discord of an one-dimensional spin-1/2 XXZ chain is studied when anisotropic interaction quenches ...
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Using the adaptive time-dependent density-matrix renormalization group method,the dynamics of entanglement and quantum discord of an one-dimensional spin-1/2 XXZ chain is studied when anisotropic interaction quenches are applied at different *** dynamics of the quantum discord and pairwise entanglement between the nearest qubits shows that the entanglement and quantum discord will first oscillate and then approach to a constant *** quantum discord can be used to predict the quantum phase transition,while the entanglement cannot.
SmB6, a well-known Kondo insulator, has been proposed to be an ideal topological insulator with states of topological character located in a clean, bulk electronic gap, namely, the Kondo-hybridization gap. Since the K...
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SmB6, a well-known Kondo insulator, has been proposed to be an ideal topological insulator with states of topological character located in a clean, bulk electronic gap, namely, the Kondo-hybridization gap. Since the Kondo gap arises from many-body electronic correlations, SmB6 would be placed at the head of a new material class: topological Kondo insulators. Here, for the first time, we show that the k-space characteristics of the Kondo-hybridization process is the key to unraveling the origin of the two types of metallic states experimentally observed by angle-resolved photoelectron spectroscopy (ARPES) in the electronic band structure of SmB6(001). One group of these states is essentially of bulk origin and cuts the Fermi level due to the position of the chemical potential 20 meV above the lowest-lying 5d−4f hybridization zone. The other metallic state is more enigmatic, being weak in intensity, but represents a good candidate for a topological surface state. However, before this claim can be substantiated by an unequivocal measurement of its massless dispersion relation, our data raise the bar in terms of the ARPES resolution required, as we show there to be a strong renormalization of the hybridization gaps by a factor 2–3 compared to theory, following from the knowledge of the true position of the chemical potential and a careful comparison with the predictions from recent local-density-approximation (LDA)+Gutzwiller calculations. All in all, these key pieces of evidence act as triangulation markers, providing a detailed description of the electronic landscape in SmB6 and pointing the way for future, ultrahigh-resolution ARPES experiments to achieve a direct measurement of the Dirac cones in the first topological Kondo insulator.
作者：
Shihpeng WenHsiuying ChungWencheng ChenJiahorng LinChingwen LouDepartment of Biotechnology
Asia University Chinese Taipei Institute of Biomedical Engineering and Material Science Central Taiwan University of Science and Technology Chinese Taipei Laboratory of Fiber Application and Manufacturing
Department of Fiber and Composite Materials Feng Chia University Chinese Taipei Department of Materials Science and Engineering Feng Chia University Chinese Taipei Advanced Medical Devices and Composite Laboratory Department of Fiber and Composite Materials Feng Chia University Chinese Taipei Laboratory of Fiber Application and Manufacturing Department of Fiber and Composite Materials Feng Chia University Chinese Taipei School of Chinese Medicine
China Medical University Chinese Taipei
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