Fabrication of C-doped WO₃ nanoparticle cluster arrays from PS-b-P4VP for room temperature H₂ sensing.

C-doped WO3 based room temperature hydrogen sensors including nanoparticle cluster arrays and nanorods were successfully prepared by a PS-b-P4VP template based method. AFM, TEM and XPS are used to characterize the structure and composition of the samples. Analyses indicate that the C-doped WO3 nanoparticle cluster arrays are arranged in a beautiful hexagonal configuration and they are interconnected by a superthin carbon film.

Facile hydrothermal synthesis of TiO2-Bi2WO6 hollow superstructures with excellent photocatalysis and recycle properties.

One-dimensional mesoporous TiO2-Bi2WO6 hollow superstructures are prepared using a hydrothermal method and their photocatalysis and recycle properties are investigated. Experimental results indicate that anatase TiO2 nanoparticles are coupled with hierarchical Bi2WO6 hollow tubes on their surfaces. The TiO2-Bi2WO6 structure has a mesoporous wall and the pores in the wall are on average 21 nm.

[Abundance and biomass of meiobenthos in Lingdingyang Bay of Pearl River Estuary].

An investigation was conducted on the meiobenthic abundance and biomass in the Lingdingyang Bay of Pearl River Estuary in July-August 2006 (summer), April 2007 (spring), and October 2007 (autumn). A total of 15 meiobenthic groups were recorded, including Nematoda, Copepoda, Polychaeta, Ostracoda, Kinorhyncha, Amphipoda, Cumacea, Tanaidacea, Gnathostomulida, Nemertea, Gastropoda, Bivalvia, Sipuncula, Echiura, and other unidentified taxa. The average abundance of the meiobenthos in spring, summer, and autumn was 272.