Dye decomposition and air de-pollution performance of TiO/SiO and N-TiO/SiO photocatalysts coated on Portland cement mortar substates.

In this study, the newly synthesized TiO and N doped TiO clusters were added to silica sol to synthesize N-TiO/SiO composites via the sol-gel method. Afterwards, the prepared sols were applied by brushing on portland cement. Doping with nitrogen significantly increased the absorption of TiO towards the visible region, thus, increasing the photocatalytic activity.

Analytical determination of the reducing and stabilization agents present in different Zostera noltii extracts used for the biosynthesis of gold nanoparticles.

The objective of this work was to ascertain the nature of the components responsible for the reducing and stabilizing properties of Zostera noltii extracts that lead to gold nanoparticle formation using chemical techniques of analysis. In order to achieve this aim, we try the synthesis of AuNPs with three different extracts from plants collected in the Bay of Cádiz (Spain). The n-butanol extract produced the best results.