Search
Now showing items 1-10 of 137
Evaluación de la temperatura y el tiempo de calcinación en la síntesis y caracterización de nanopartículas de TiO2 para el uso como agente antibacterialEvaluation of the calcination temperature and time in the synthesis and characterization of TiO2 nanoparticles for use as an antibacterial agent
(Universidad Nacional del Centro del Peru, 2022)
Effect of CeO2 content in morphology and optoelectronic properties of TiO2-CeO2 nanoparticles in visible light organic degradation
(ELSEVIER SCI LTD, 2019-02-01)
TiO2 is a semiconductor widely used in photocatalytic degradation of organic pollutants due to its band gap energy. However, its absorption range is restricted only to UV radiation that is less than 10% of solar light. ...
Solar light efficient photocatalytic activity degradation of emergent contaminants by coated TiO2 nanoparticles
(Royal Society of Chemistry, 2018-08-09)
The photocatalytic degradation of different emergent contaminants in aqueous solutions has been studied by using oligomer-coated TiO2 nanoparticles under solar light irradiation. The oligomer was synthesized using methacrylic ...
Exploiting electron storage in TiO2 nanoparticles for dark reduction of As(v) by accumulated electrons
(Royal Society Of Chemistry, 2013-05)
UV irradiation of an ethanolic sol of TiO2 nanoparticles produces a trapped Ti(III) centre and a noticeable Burstein shift. Direct evidence that the accumulated charges can drive the otherwise forbidden reduction of ...
TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
(Royal Society of Chemistry, 2019-04)
In this paper, a systematic study regarding the effect of the mesoporous structure over Au nanoparticles (NPs) growth inside and through the pores of mesoporous TiO2 thin films (MTTFs) is presented, and the effect of such ...
Photocatalytic hydrogen production by Au-MxOy (M=Ag, Cu, Ni) catalysts supported on TiO2
(Elsevier Science, 2014-01)
Au-MxOy (M_Ag, Cu, Ni) nanoparticles supported on TiO2?P25 were prepared by the deposition?precipitation method and were evaluated for the fotocatalytic water splitting reaction for hydrogen production, using a mixture of ...
Absorption mechanism of dopamine/DOPAC-modified TiO2 nanoparticles by time-dependent density functional theory calculations
(Elsevier Ltd, 2021-03)
Donor-modified TiO2 nanoparticles are interesting hybrid systems shifting the absorption edge of this semiconductor from the ultra-violet to the visible or infrared light spectrum, which is a benefit for several applications ...
The role of nanoparticulate agglomerates in TiO2 photocatalysis: degradation of oxalic acid
(Springer, 2016-07)
The simultaneous bimodal study of the photocatalytic oxalic acid degradation by aqueous TiO2 suspensions revealed that particular systems possess the capacity to protect a certain amount of oxalic acid from oxidation, thus ...
Interparticle effects in the cotransport of viruses and engineered nanoparticles in saturated porous media
(Elsevier, 2021-10)
The effects of P25 TiO2 nanoparticles on the transport in saturated porous media of the bacteriophage PP7 was investigated. Two levels of ionic strength were considered, given by monovalent and divalent cations, Na+ and ...