Effect on the stabilization of the anatase phase and luminescent properties of samarium-doped TiO2 nanocrystals prepared by microwave irradiation

2016 ◽  
Vol 687 ◽  
pp. 121-129 ◽  
Author(s):  
R.D. Dominguez ◽  
G. Alarcón-Flores ◽  
M. Aguilar-Frutis ◽  
R.I. Sánchez-Alarcón ◽  
C. Falcony ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
Anatase Phase ◽  
Luminescent Properties ◽  
Tio2 Nanocrystals ◽  
Doped Tio2

scholarly journals An Experimental and Theoretical Study on the Effect of Silver Nanoparticles Concentration on the Structural, Morphological, Optical, and Electronic Properties of TiO2 Nanocrystals

Crystals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1488
Author(s):  
Faheem Ahmed ◽  
Mohammed Benali Kanoun ◽  
Chawki Awada ◽  
Christian Jonin ◽  
Pierre-Francois Brevet
Keyword(s):  
Electronic Properties ◽  
Density Functional ◽  
Anatase Phase ◽  
Density Functional Theory Calculations ◽  
Tio2 Nanocrystals ◽  
Uniform Size ◽  
Chemical Route ◽  
Structural And Electronic Properties ◽  
Nanoparticles Concentration ◽  
Gap States

In this work, pure and silver (Ag)-loaded TiO2 nanocrystals (NCs) with various concentrations of Ag were prepared by soft chemical route and the effect of Ag nanoparticles (NPs) on the functional properties of TiO2 was studied. X-ray diffraction (XRD) and Raman studies confirmed that the synthesized product had single-phase nature and high crystalline quality. The crystallite size was decreased from 18.3 nm to 13.9 nm with the increasing in concentration of Ag in TiO2 NCs. FESEM micrographs showed that the pure and AgNPs-loaded TiO2 have spherical morphology and uniform size distribution with the size ranging from 20 to 10 nm. Raman spectroscopy performed on pure and AgNPs-loaded TiO2 confirms the presence of anatase phase and AgNPs. Optical properties show the characteristics peaks of TiO2 and the shifting of the peaks position was observed by changing the concentration of Ag. The tuning of bandgap was found to be observed with the increase in Ag, which could be ascribed to the synergistic effect between silver and TiO2 NCs. Density functional theory calculations are carried out for different Ag series of doped TiO2 lattices to simulate the structural and electronic properties. The analysis of the electronic structures show that Ag loading induces new localized gap states around the Fermi level. Moreover, the introduction of dopant states in the gap region owing to Ag doping can be convenient to shift the absorption edge of pristine TiO2 through visible light.

Electronic Structure of Pure and N-Doped TiO2 Nanocrystals by Electrochemical Experiments and First Principles Calculations

2011 ◽  
Vol 115 (14) ◽  
pp. 6381-6391 ◽  
Author(s):  
Francesca Spadavecchia ◽  
Giuseppe Cappelletti ◽  
Silvia Ardizzone ◽  
Michele Ceotto ◽  
Luigi Falciola
Keyword(s):  
Electronic Structure ◽  
First Principles ◽  
First Principles Calculations ◽  
Tio2 Nanocrystals ◽  
Doped Tio2

Preparation and photocatalytic properties of Zr4+-doped TiO2 nanocrystals

2004 ◽  
Vol 215 (1-2) ◽  
pp. 137-142 ◽  
Author(s):  
Yan Min Wang ◽  
Su Wen Liu ◽  
Meng Kai Lü ◽  
Shu Fen Wang ◽  
Feng Gu ◽  
...  
Keyword(s):  
Photocatalytic Properties ◽  
Tio2 Nanocrystals ◽  
Doped Tio2

Nd3+ doped TiO2 nanocrystals as self-referenced optical nanothermometer operating within the biological windows

2021 ◽  
Vol 317 ◽  
pp. 112445
Author(s):  
W.S. Silva ◽  
A.C.A. Silva ◽  
U. Rocha ◽  
N.O. Dantas ◽  
W.F. Silva ◽  
...  
Keyword(s):  
Tio2 Nanocrystals ◽  
Doped Tio2 ◽  
Biological Windows

scholarly journals A review of scandium–hafnium doped TiO2 nanocrystals

2020 ◽  
Vol 2 (5) ◽  
Author(s):  
L. Athira ◽  
M. Sundararajan ◽  
R. A. Renjith ◽  
R. G. Rejith ◽  
M. A. Mohammed-Aslam ◽  
...  
Keyword(s):  
Tio2 Nanocrystals ◽  
Doped Tio2

scholarly journals Shaped Co2+ doped TiO2 nanocrystals synthesized from nanotubular precursor: Structure and ferromagnetic behavior

2017 ◽  
Vol 6 (3) ◽  
pp. 220-229 ◽  
Author(s):  
M. Vranješ ◽  
J. Kuljanin Jakovljević ◽  
Z. Konstantinović ◽  
A. Pomar ◽  
M. Stoiljković ◽  
...  
Keyword(s):  
Ferromagnetic Behavior ◽  
Tio2 Nanocrystals ◽  
Doped Tio2 ◽  
Precursor Structure
Sign in / Sign up

Export Citation Format

Share Document