Sulfur vacancy-rich (α/β-CdS)/SiO photocatalysts for enhanced visible-light-driven photocatalytic degradation of rhodamine B.

The development of highly efficient photocatalysts for visible-light-driven degradation of organic pollution is of great interest for wastewater purification. In this work, a sulfur vacancy-rich (α/β-CdS)/SiO (α: hexagonal & β: cubic) photocatalyst with a high catalytic activity was novelly synthesized on a nano-SiO carrier by the reaction of Cd with a CS storage material (CSSM) as sulfur source and crystalline modifiers. The dispersion of α/β-CdS on the nano-SiO carrier significantly enhanced the visible-light-driven catalytic activity of (α/β-CdS)/SiO photocatalyst, and 93.

Novel Core-Shell (ε-MnO/CeO)@CeO Composite Catalyst with a Synergistic Effect for Efficient Formaldehyde Oxidation.

A novel core-shell (ε-MnO/CeO)@CeO composite catalyst with a synergistic effect was prepared by hydrothermal reaction and thermal decomposition and its application to high-efficiency oxidation removal of formaldehyde (HCHO) was systemically investigated. The (MnCO/CeO)@CeO precursor was prepared first by the one-pot hydrothermal reaction of Mn and Ce solutions with a CO-storage material (COSM) without any external templates or surfactants required. The thermal decomposition of the precursor afforded the core-shell (ε-MnO/CeO)@CeO composite catalyst with excellent catalytic performance.

Epitaxial Growth of Rectangle Shape MoS with Highly Aligned Orientation on Twofold Symmetry a-Plane Sapphire.

Research on transition metal dichalcogenides (TMDs) has been accelerated by the development of large-scale synthesis based on chemical vapor deposition (CVD) growth. However, in most cases, CVD-grown TMDs are composed of randomly oriented grains, and thus contain many distorted grain boundaries (GBs), which seriously degrade their electrical and photoelectrical properties. Here, the epitaxial growth of highly aligned MoS grains is reported on a twofold symmetry a-plane sapphire substrate.

P-N depleted bulk BiOBr/α-FeO heterojunctions applied for unbiased solar water splitting.

P-N depleted bulk BiOBr/α-FeO heterojunction (DBH) nanostructures with the growth of (001) BiOBr facets were prepared via a simple hydrothermal method. BiOBr possesses an average thickness of around 50 nm and shows preferential exposure of the (001) facets. α-FeO nanoparticles, with an average diameter of 5 nm, are attached on the surface of BiOBr as 20-50 nm clusters with an intimate contact interface.

Enhanced photocurrent by the co-sensitization of ZnO with dye and CuInSe nanocrystals.

ZnO nanocrystals with a particle size of 20-30 nm have been synthesised for the first time using a template-free method. Chalcopyrite Cu0.28In1.

Facile patterning of upconversion NaYF4:Yb,Er nanoparticles.

Different kinds of highly ordered patterns of NaYF(4):Yb,Er nanoparticles on gold substrates were fabricated using a simple method combining micro-contact printing and "breath figures" techniques. Ordered arrays of water droplets were first formed in the hydrophilic regions of patterned self-assembled monolayers (SAMs). This was subsequently submerged in a chloroform solution of NaYF(4):Yb,Er nanoparticles.

Improving the anti-tumor effect of genistein with a biocompatible superparamagnetic drug delivery system.

The practical application of genistein as a low toxicity chemotherapeutic drug is hindered by many of its in vivo properties. To overcome these obstacles, a new multifunctional drug delivery system is developed, which is based on covalently attaching genistein onto Fe3O4 nanoparticles coated by cross-linked carboxymethylated chitosan (CMCH). The structure of the Fe3O4-CMCH-genistein nano-conjugate was confirmed by transmission electron micrographs (TEM), X-ray diffraction (XRD) and Fourier-transfer infrared (FT-IR) spectroscopy.

Shell-Controlled Photoluminescence in CdSe/CNT Nanohybrids.

A new type of nanohybrids containing carbon nanotubes (CNTs) and CdSe quantum dots (QDs) was prepared using an electrostatic self-assembly method. The CdSe QDs were capped by various mercaptocarboxylic acids, including thioglycolic acid (TGA), dihydrolipoic acid (DHLA) and mercaptoundecanoic acid (MUA), which provide shell thicknesses of ~5.2, 10.