Improvement of thermal stability of highly active species on SiO supported copper-ceria catalysts.

CuO-CeO/SiO catalysts lose activity when they are calcined at 600 °C and temperatures above. This loss of activity was related to a decrease in the amount of highly dispersed Cu species interacting with Ce (CuO-CeO interface) over the SiO support. These species are highly active in CO oxidation, so this reaction was selected to conduct this study.

Sulfur or Pollen? Chemical, Biological, and Toxicological Basis for the Correct Risk Communication of Urban Yellow Dust Deposition.

Urban yellow dust deposition is a common phenomenon in many parts of the world, which is sometimes called "sulfur shower," "sulfur rain," or "pollen storm." Most people, especially those living in the vicinity of industrial facilities, wrongly perceive the yellow dust as sulfur when in fact it is pollen. The misunderstanding increases risk perception as people believe the "yellow powder" is a serious threat to their health.

A new functional biofilm biocatalyst for the simultaneous removal of dibenzothiophene and quinoline using and curli amyloid overproducer mutants derived from sp. strain MM1IDA2H-1.

Biocatalyst systems based on biofilms were developed to remove nitrogen and sulfur-containing heterocyclic hydrocarbons using sp. strain MM1IDA2H-1 and . The overproducers mutants CM and CM were derived from C sp.