Yuxue Zhou

Yangzhou University · College of Physics Science and Technology

In this study, orthorhombic Sc2W3O12 with an erythrocyte structure has been successfully prepared by poly(vinyl pyrrolidone) (PVP)-assisted hydrothermal method. The effects of PVP additive on the phase composition, morphology and negative thermal expansion (NTE) behavior of Sc2W3O12 were studied. Results indicate that pure orthorhombic Sc2W3O12 can...

Herein, we studied the effect of Cu doping on the ultraviolet (UV) emission enhancement of ZnO nanorods. ZnO nanorods with different Cu doping concentrations were prepared by hydrothermal method and the Cu doping behavior was investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), ultraviolet visible (UV–Vis)...

In this work, Sc2Mo3O12 has been synthesized via one-pot hydrothermal reaction. The effects of process conditions on the crystal structure, morphology, photocatalytic activity and negative thermal expansion (NTE) behaviors of flower-like Sc2Mo3O12 were systematically investigated. Results indicate that orthorhombic flower-like Sc2Mo3O12 assembled b...

The catalytic activity of an electrocatalyst can be promoted by elaborate modulations on surfaces and interfaces, while the realization of multiple regulating routes on one electrocatalyst at the same time towards a promoted catalytic activity is a challenge. In this study, CoS2-MoS2 heterostructured hollow microspheres (HS) were firstly designed f...

Mo-Ni alloy has been demonstrated to be a benchmark noble-metal-free catalyst for hydrogen evolution reaction (HER) in alkaline solutions. Nevertheless, further improvement on its catalytic activity is desired to meet industrial requirements. In this study, Mo-Ni based hollow structures (MoNi-HS), backboned by MoO3-x nanosheets and decorated with m...

Pristine Bi2WO6 hollow microspheres have been fabricated in ethylene glycol-water system with CTAB as crystal growth director for the first time, hybrid Au- Bi2WO6 hollow microspheres was also obtained by in situ decoration of Au nanoparticles, the formation mechanisms were explored. Their photocatalytic activities on photo-reduction of Cr(VI) and...

Microwave-absorbing materials with light weight and high efficiency are desirable in addressing electromagnetic interference (EMI) problems. Herein, a nickel-cobalt sulfide (NCS) nanostructure was employed as a robust microwave absorber, which displayed an optimized reflection loss of -49.1 dB in the gigahertz range with a loading of only 20 wt% in...

Earth-abundant transition metal sulfide eletrocatalysts for oxygen evolution reaction (OER) with compelling catalytic performance hold a key to clean and renewable energy conversion. Herein, we report a one-step solvothermal method to synthesize iron-doped cobalt sulfide (CoFeS) nanoplates. A highly efficient OER catalytic performance with a low ov...

The present work reports on the tunable optical emission from oxygen vacancies in ZnO nanorods. The common green luminescence at room temperature originated from oxygen vacancy defects can be mediated by simply controlling pH values of alkaline solutions without the introduction of any intentional dopants. The peak energies of the green band are fo...

Owing to its abundance, high gravimetric energy density, and environmental friendliness, hydrogen is a promising renewable energy to replace fossil fuels. One of the most prominent routes toward hydrogen acquisition is water splitting, which is currently bottlenecked by the sluggish kinetics of oxygen evolution reaction (OER). Numerous of electroca...

Two-dimensional thin Bi₂WO₆ nanoplates have been fabricated using a cetyltrimethylammonium bromide (CTAB)-assisted hydrothermal method. We investigated the proposed formation mechanism based on the crystalline structures of the thin Bi₂WO₆ nanoplates. The high adsorption ability and excellent visible-light driven photocatalytic activities of the Bi...

Highly hierarchical hollow bismuth tungstate (Bi2WO6) microspheres self-assembled by thin nanoplates have been fabricated via a facile template-free solvothermal route. The possible growth pattern and formation mechanism of hierarchical hollow Bi2WO6 microspheres was investigated. The excellent visible-light-driven photocatalytic performance on rho...

Bright green luminescence is achieved from undoped ZnO films prepared by the reaction of oxygen and zinc powder. The green emission band is considered to be mainly due to the singly ionized oxygen vacancies. Temperature dependence of exciton transitions in the undoped ZnO films has been investigated in the range from 10 to 270 K. The PL spectrum at...

Nanoparticle clusters are usually referred to as colloidal molecules due to their composition, configuration and gap dependent properties. Here, we report a general strategy for high yield fabrication of home- and hetero- nanoparticle clusters with controlled configuration and gap through a self-assembly process mediated by electrostatic interactio...

Vertically aligned nanosheet heterostructures with partly reduced MoO3 cores and adjustable MoS2 shells were fabricated via two-step chemical vapor deposition (CVD). The as-synthesized MoS2/MoOx heterostructures exhibit enhanced visible-light photocatalytic activity and good compatibility in a wide range of PH values (e.g. 2–12) for the degradation...

The visible-light-driven photocatalytic activities of graphene-semiconductor catalysts have recently been demonstrated, however, the transfer pathway of photogenerated carriers especially where the role of graphene still remains controversial. Here we report graphene–SnO2 aerosol nanocomposites that exhibit more superior dye adsorption capacity and...

Spinel lithium titanate nanoparticles have been synthesized using anatase and brookite nanocrystallites, as precursors. The corresponding products, A- and B-Li4Ti5O12 nanoparticles, have distinct differences in the optical absorption property, electrochemical performance and photocatalytic activity. The UV-vis absorption spectrum of B-Li 4Ti5O12 na...

The visible-light-driven photocatalytic activities of graphene-semiconductor catalysts have recently been demonstrated, however, the transfer pathway of photogenerated carriers especially where the role of graphene still remains controversial. Here we report graphene-SnO2 aerosol nanocomposites that exhibit more superior dye adsorption capacity and...

The ultrafine SnO2 quantum dots (QDs) modified with poly(ethylene glycol methyl ether) (PEGME) (PEGME-SnO2 QDs) were synthesized via hydrothermal method. X-ray diffraction and high-resolution transmission electron microscopy were employed to illustrate that the PEGME-SnO2 QDs are uniform, monodispersed and about 4 nm in diameter. Then infrared spec...

In nature the spontaneous formation of ordered structures from molecules, called self-assembly, is a very common process occurring in inorganic matter and living organisms. It is driven by atoms, molecules, particles, granular matter, etc. trying to reach the lowest possible energy state while interacting with each other. Deeper understanding of th...