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A team from Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, used synchrotron based X-ray absorption fine structure spectroscopy (XAFS) combining with some other technologies such as ICP-MS, X-ray diffraction (XRD) and high resolution transmission electronic microscopy (HRTEM) to analyze the speciation and microstructural transformation of ZnO NPs in the presence of phosphate which exis...

Many studies have proven that the ammonium thiosulfate can enhance the mercury accumulation in plant through which they can meet the standard of accumulators or even hyperaccumulators. However,the mechanism of mercury transport and accumulation in plant as a result of ammonium thiosulfate has not been identified yet. Researchers from Institute of Geochemistry,CAS have studied the mercury speciation in thiosulfate ...

Nitrogen oxides (NOx) contribute much to acid rain, photochemical smog, and the depletion of tropospheric ozone. In China, the total amount of NOx emission has been controlled during the National Twelfth Five-Year Plan. The commercial technology for NOx control is the selective catalytic reduction (SCR) of NOx with NH3. Therein, the SCR catalyst is the most important. Previous studies have showed that a lot ofamor...

Ferromanganese minerals occurred in soils, sediments and sea floor are generally enriched in various transition metals (TMs). Hexagonal birnessite is the most ubiquitous and reactive manganese oxide in geological environments. Incorporation of TM ions into birnessites not only affects their valence and speciation, but also results in certain changes in (sub)structure and physicochemical properties, consequently af...

Ceria nanoparticles(NPs)aregenerally recognized as stable under environmental and biological conditions,and are unlikely to release heavy metal ions. Their research has been published on an important journal in nanoscience,ACS Nano(Biotransformation of ceria nanoparticles in cucumber plants. This is the first report confirming the biotransformation of ceria NPs in biological systems This implies that in the assess...

Metallic glasses have been extensively researched due to its special structure and properties. However,the electronic structure of the metallic glasses remains unclear. The team draws a conclusion that the polyamorphic transition in the lanthanide BMGs inherits from solvent component’s crystalline polymorphic transitions related to the 4f electronic state The compressive behavior of pure rare-earth under high pre...
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