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Phosphorene, a single layer of black phosphorus, has attracted considerable attention recently due to its intriguing structures and fascinating electronic properties. In particular, its remarkable properties, such as high charge carrier mobility, direct band-gap semiconducting characteristics, and strong anisotropies in electro-optical and thermo-mechanical properties, etc., are opening up brand-new opportunities for its applications in nanoelectronics, optoelectronics, sensors, energy conversion, and advanced engineering materials, etc. In this article, we present recent advances in the study of phosphorene and its derivatives (nanoribbons, nanotubes, fullerenes, and heterostructures) with special emphasis on structures, morphologies, properties (electronic, optical, magnetic, thermal, mechanical), and applications (transistors, phonon detectors, digital circuits, sensors, thermoelectric materials, Li-ion batteries). In addition, routes for modifying these properties by physical and chemical functionalization, defect engineering, strain engineering, and electric fields are discussed. Our intent is to present a state-of-the-art view in this fast-evolving field, with a balanced theoretical and experimental perspective. [ABSTRACT FROM AUTHOR]

An accurate model about the terahertz wave propagation in fluid-filled single-walled carbon nanotube, named non-local Euler-Bernoulli bean models, was studied in the past decade. The temperature is a key factor to study the mechanical properties of the nanostructures. This paper presents the thermal effect about single-walled carbon nanotubes. The governing equation for single-walled carbon nanotubes is developed through non-local Timoshenko beam theory, and size and surface effects are considered. The fluid flows quickly, and the terahertz wave propagation will be in the scope of the frequency. Thermal effect and liquid density significantly change the propagating frequency. [ABSTRACT FROM AUTHOR]

Transition metal dichalcogenides (TMDs), such as MoS2, MoSe2, WS2, and WSe2, are layered materials with strong in-plane ionic-covalent bonds and weak out-of-plane van der Waals interactions, enabling formation of various nanostructures, such as nanotubes, nanoribbons, nanoflakes, and fullerene-like nanoparticles. Various remarkable properties have been found recently in these nanostructures, opening up brand new opportunities for their applications in nanoelectronics, optoelectronics, spintronics and structural materials. In this article, we present recent advances in the study of two-dimensional TMDs and their derivatives with special emphasis on structures, morphologies, properties (electronic, magnetic, thermal, mechanical), and applications (transistors, sensors, catalysts, lubricants, and composite materials). In addition, routes for modifying these properties by chemical doping, defect engineering, strain engineering, and electric fields are discussed. Our intent is to present a state-of-the-art view in this fast evolving field, with a balanced theoretical and experimental perspective. [ABSTRACT FROM AUTHOR]

In this work, we have developed an ion exchange reaction to fabricate homogeneously distributed CdS nanoparticles with a size in the range of 20-120 nm in the sulphonated poly(ether ether ketone) (SPEEK) membrane. The chemical composition of the composite membrane was characterised by ultraviolet-visible (UV-vis) spectroscopy, powder X-ray diffraction (XRD) and Xray photoelectron spectroscopy (XPS) measurements. The as prepared SPEEK/CdS composite membrane exhibited a remarkable photocatalytic activity towards the photodegradation of rhodamine B under visible light irradiation at room temperature. This work presents a simple and versatile approach to prepare sulphide nanostructures on the surface of polymer membrane, providing a new opportunity for their applications in the photocatalytic reaction. [ABSTRACT FROM AUTHOR]

-In this paper, we study the unusual properties of electromagnetic waves on the interface between anisotropic metamaterials and conventional materials based on two dimensional periodic unloaded transmission lines. In a certain frequency region, the dispersion relation of the anisotropic metamaterials shows different behaviors separated by resonance frequency, while the shapes of wavevector surfaces are hyperbolic. The asymptotes of these hyperbolic surfaces are in the same directions as the wavevector surfaces in the resonance frequency. Therefore, with careful designing, the interface consisting of the anisotropic and the isotropic grids realizes the frequency selection of the microwave beams' direction. These phenomena can occur in a broad frequency range which is verified by the results of the simulations and experiments. [ABSTRACT FROM AUTHOR]