Shu Yin

Abstract Nitrogen-doped yellowish rutile titania prepared by high energy ball milling of P-25 titania - 5% HMT (Hexamethylenetetramine, C6H12N4) mixed powders followed by calcination in air at 400 °C possessed two absorption edges around 400 and 540 nm and showed excellent photocatalytic ability for nitrogen monoxide oxidization under irradiation of the visible light of wavelength >510 nm.

Nitrogen-doped yellowish rutile titania was prepared by a mechanochemical method. The samples were prepared by high-energy ball milling of a P-25 titania powder with various amounts of hexamethylenetetramine (HMT) under different milling conditions at around room temperature. The effects of the reaction conditions on the phase composition, particle size, specific surface area, amount of nitrogen-doping, microstructure and photocatalysis of nitrogen monoxide destruction were investigated in detai

Anatase, brookite and rutile type nitrogen-doped titania nanocrystals (TiO2−xNy) which are beige in color were successfully prepared by a ‘Homogeneous Precipitation–Solvothermal Process’ (HPSP) in TiCl3–hexamethylenetetramine (C6H12N4) aqueous and alcohol solutions. The phase composition, crystallinity, microstructure, specific surface area, nitrogen doping amount and photocatalytic activity of titania powders greatly changed depending on pH, temperature and the type of treatment alcohols. The T

The photocatalytic deNOx activities of titania, nitrogen-doped titania, Fe-loaded nitrogen-doped titania, and Pt-loaded nitrogen-doped titania under irradiation from monochrome LED lamps using various light wavelengths were investigated in detail. The improvement of visible light induced photocatalytic activity was successfully realized using Fe and Pt loading. Both Fe-loaded nitrogen-doped titania and Pt-loaded nitrogen-doped titania showed excellent visible light response ability. The photocat

Nanosize homogenous rod-like tungsten bronze CsxWO3 with excellent NIR shielding ability was successfully synthesized by a novel and facile water controlled-release solvothermal process (WCRSP).

An expanded cohort study of 74,828 benzene-exposed and 35,805 unexposed workers were followed during 1972 to 1987, based on a previous study in 12 cities in China. A small increase was observed in total cancer mortality among benzene-exposed compared with unexposed workers (relative risk [RR] = 1.2). Statistically significant excesses were noted for leukemia (RR = 2.3), malignant lymphoma (RR = 4.5), and lung cancer (RR = 1.4). When risks were evaluated by leukemia subtype, only acute myelogenou