nanostructured tio2
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Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1512
Author(s):  
Lev Matoh ◽  
Boštjan Žener ◽  
Tina Skalar ◽  
Urška Lavrenčič Štangar

Hydrothermal reactions represent a simple and efficient method for the preparation of nanostructured TiO2 particles that could be of interest as photocatalysts or catalytic supports. Although the particle size is in the range of 2–5 µm, the nanostructures composing the particles ensure a large specific surface area with values above 100 m2/g. The effects of the different synthesis parameters on the morphology, photocatalytic activity, and stability of the prepared material were studied. The surface morphology of the prepared TiO2 powders was studied by scanning electron microscopy (SEM). To further characterize the samples, the specific surface area for different morphologies was measured and the photocatalytic activity of the prepared powders was tested by degrading model pollutants under UV irradiation. The results show that the initial morphology had little effect on the photocatalytic properties. On the other hand, the final calcination temperature significantly increased the degradation rates, making it comparable to that of P25 TiO2 (particle size 20–30 nm).


Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6167
Author(s):  
Linda Bertel ◽  
David A. Miranda ◽  
José Miguel García-Martín

TiO2 electrochemical biosensors represent an option for biomolecules recognition associated with diseases, food or environmental contaminants, drug interactions and related topics. The relevance of TiO2 biosensors is due to the high selectivity and sensitivity that can be achieved. The development of electrochemical biosensors based on nanostructured TiO2 surfaces requires knowing the signal extracted from them and its relationship with the properties of the transducer, such as the crystalline phase, the roughness and the morphology of the TiO2 nanostructures. Using relevant literature published in the last decade, an overview of TiO2 based biosensors is here provided. First, the principal fabrication methods of nanostructured TiO2 surfaces are presented and their properties are briefly described. Secondly, the different detection techniques and representative examples of their applications are provided. Finally, the functionalization strategies with biomolecules are discussed. This work could contribute as a reference for the design of electrochemical biosensors based on nanostructured TiO2 surfaces, considering the detection technique and the experimental electrochemical conditions needed for a specific analyte.


Solar Energy ◽  
2021 ◽  
Vol 225 ◽  
pp. 129-147
Author(s):  
S.M. Amir-Al Zumahi ◽  
Nourin Arobi ◽  
M Mahbubur Rahman ◽  
Md Kamal Hossain ◽  
Meshkat Ara Jahan Rozy ◽  
...  

2021 ◽  
pp. 151026
Author(s):  
Tihana Čižmar ◽  
Ivana Panžić ◽  
Ivana Capan ◽  
Andreja Gajović

ACS Omega ◽  
2021 ◽  
Author(s):  
Sagar V. Kite ◽  
Abhijit Nanaso Kadam ◽  
Dattatraya J. Sathe ◽  
Satish Patil ◽  
Sawanta S. Mali ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3122
Author(s):  
Lijian Meng ◽  
Tao Yang

Nanostructured TiO2 films were deposited onto Indium Tin Oxide (ITO) and glass substrates by dc reactive magnetron sputtering at different substrate inclination angles. The structural and optical properties of the deposited films were studied by X-ray diffraction, scanning electron microscopy and UV–Vis spectrophotometer, respectively. Dye-sensitized solar cells (DSSC) were assembled using these TiO2 films as photoelectrodes and the effect of the substrate inclination angle in the preparing process of TiO2 films on the DSSC conversion efficiency was studied.


2021 ◽  
Vol 57 (5) ◽  
pp. 503-510
Author(s):  
I. B. Dorosheva ◽  
A. A. Valeeva ◽  
A. A. Rempel ◽  
M. A. Trestsova ◽  
I. A. Utepova ◽  
...  

2021 ◽  
pp. 150092
Author(s):  
P. Naresh Kumar Reddy ◽  
Dadamiah P.M.D. Shaik ◽  
Vattikondala Ganesh ◽  
D. Nagamalleswari ◽  
K. Thyagarajan ◽  
...  

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