Qiyan Feng

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With dimethyldecylamine (DMDA) as the expander, a new kind of pore-expanded amino-functionalized mesoporous silicas (PEAFMS) was directly synthesized under mild alkali condition. The characteristics of PEAFMS sample demonstrated that the presence of DMDA markedly augmented the average pore diameter (19.04 nm) and strongly enhanced its decolorization(More)
Land subsidence in coal mine would change the type of soil so that it influences the distribution and bioavailability of metals. The results show that the total metal concentration was in the range from 0.41 ± 0.26 mg/kg (Cd) to 94.16 ± 12.06 mg/kg (Zn) and Cd was the serious pollution metal. In spatial, the concentration of most metals (except Sb) was(More)
As an effective conventional absorbent, biochar exhibited limited adsorption ability toward small hydrophobic molecules. To enhance the adsorption capacity, a novel adsorbent was prepared by immobilizing nanoscale zero-valent iron onto modified biochar (MB) and then the elemental silver was attached to the surface of iron (Ag/Fe/MB). It's noted that(More)
Fluorosis is the most widespread and serious endemic disease in the abandoned Yellow River flooding delta of East China. Regional geochemical investigation indicates that host rocks containing F rich minerals of Archaean and Proterozoic stages are the geochemical source for the high fluoride groundwater. Over 1500 times flooding of the Abandoned Yellow(More)
OBJECTIVES The aim of this study was to assess daily ginger consumption and explore its correlation with chronic diseases among adults and to analyze further how different levels of ginger intake affect the prevalence of chronic diseases. METHODS We examined the prevalence rate of chronic diseases (diabetes, hypertension, coronary heart disease [CHD],(More)
The large-scale coal mining has caused serious environmental pollution and ecological damage in the coal mining areas in China. The serious conditions are listed as below: the geological disasters such as landslide, dilapidation, mud-rock flow and so on aroused by mining subsidence; the side effects such as land occupying, side sloping, filtrating and(More)
The naturally occurring primordial radionuclides in coals might exhibit high radioactivity, and can be exported to the surrounding environment during coal combustion. In this study, nine coal samples were collected from eastern Yunnan coal deposits, China, aiming at characterizing the overall radioactivity of some typical nuclides (i.e., 40K, 238U, 232Th,(More)
This work investigated the spatial profile and source analysis of polycyclic aromatic hydrocarbons (PAHs) in soil that surrounds coal-fired power plants in Xuzhou, China. High-throughput sequencing was employed to investigate the composition and structure of soil bacterial communities. The total concentration of 15 PAHs in the surface soils ranged from(More)
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