In Operando Photoswitching of Cu Oxidation States in Cu-Based Plasmonic Heterogeneous Photocatalysis for Efficient H Evolution.

Metal nanoparticles (NP) supported on TiO are known to be efficient photocatalysts for solar-to-chemical energy conversion. While TiO decorated with copper NPs has the potential to become an attractive system, the poor oxidative stability of Cu severely limits its applicability. In this work, we demonstrate that, when Cu NPs supported on TiO nanobelts (NBs) are engaged in the photocatalytic generation of H from water under light illumination, Cu is not only oxidized in CuO but also dissolved under the form of Cu/Cu ions, leading to a continuous reconstruction of nanoparticles via Ostwald ripening.

Differential shedding: A study of the fiber transfer mechanisms of blended cotton and polyester textiles.

One of the primary interests of forensic sciences is the study of traces, better conceived as silent witnesses to criminal activity whose existence is attributable to Locard's principle. Thus, textile fibers are commonly exploited as they are easily transferred during contact which can vary in intensity depending upon the type of activity that occurred. Regardless, current knowledge pertaining to fiber transfer mechanisms, particularly in regards to blended textiles, is limited.