One-step and large scale synthesis of non-metal doped TiO2 submicrospheres and their photocatalytic activity

2010 ◽  
Vol 21 (3) ◽  
pp. 292-297 ◽  
Author(s):  
Bashir Ahmmad ◽  
Yoshihumi Kusumoto ◽  
Md. Shariful Islam
Keyword(s):  
Photocatalytic Activity ◽  
Large Scale ◽  
Doped Tio2 ◽  
One Step ◽  
Large Scale Synthesis ◽  
Metal Doped

scholarly journals Large-Scale Synthesis of Transition-Metal-Doped TiO2 Nanowires with Controllable Overpotential

2013 ◽  
Vol 135 (27) ◽  
pp. 9995-9998 ◽  
Author(s):  
Bin Liu ◽  
Hao Ming Chen ◽  
Chong Liu ◽  
Sean C. Andrews ◽  
Chris Hahn ◽  
...  
Keyword(s):  
Transition Metal ◽  
Large Scale ◽  
Tio2 Nanowires ◽  
Doped Tio2 ◽  
Large Scale Synthesis ◽  
Metal Doped

scholarly journals A Facile Urea-Assisted Thermal Decomposition Process of TiO2 Nanoparticles and Their Photocatalytic Activity

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 165
Author(s):  
Sandip Madhukar Deshmukh ◽  
Mohaseen S. Tamboli ◽  
Hamid Shaikh ◽  
Santosh B. Babar ◽  
Dipak P. Hiwarale ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Photocatalytic Activity ◽  
Tio2 Nanoparticles ◽  
Large Scale ◽  
Ultra Violet ◽  
Tio2 Nps ◽  
Transmission Electron ◽  
Structures And Properties ◽  
Ft Ir ◽  
Large Scale Synthesis

In the present work, we have reported a facile and large-scale synthesis of TiO2 nanoparticles (NPs) through urea-assisted thermal decomposition of titanium oxysulphate. We have successfully synthesized TiO2 NPs by using this effective route with different weight ratios of titanium oxysulphate: urea. The structures and properties of TiO2 NPs were confirmed by scanning electron microscope) (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), fourier transform infrared spectroscopy (FT-IR), ultra violet–visible spectroscopy (UV-vis), and photoluminescence (Pl) techniques. XRD demonstrated that TiO2 NPs holds of anatase crystal phase with crystallizing size 14–19 nm even after heating at 600 °C. TGA, SEM, and TEM images reveal urea’s role, which controls the size, morphology, and aggregation of TiO2 NPs during the thermal decomposition. These TiO2 NPs were employed for photodegradation of Methyl Orange (MO) in the presence of ultraviolet (UV) radiation. An interesting find was that the TiO2 NPs exhibited better photocatalytic activity and excellent recycling stability over several photodegradation cycles. Furthermore, the present method has a great perspective to be used as an efficient method for large-scale synthesis of TiO2 NPs.

Investigation of photocatalytic activity of metal-doped TiO2 nanoparticles prepared by Pechini method

2012 ◽  
Vol 64 (3) ◽  
pp. 734-742 ◽  
Author(s):  
Adriane V. Rosario ◽  
Wania A. Christinelli ◽  
Roberta N. Barreto ◽  
Ernesto C. Pereira
Keyword(s):  
Photocatalytic Activity ◽  
Tio2 Nanoparticles ◽  
Pechini Method ◽  
Doped Tio2 ◽  
Metal Doped

scholarly journals Structure and photocatalytic activity of Ti1−X MX O2 (M = Zr, Co and Mo) synthesized by pulverized solid state technique

2010 ◽  
Vol 8 (2) ◽  
pp. 453-460 ◽  
Author(s):  
S. Santhosh ◽  
S. Swetha ◽  
Geetha Balakrishna
Keyword(s):  
Photocatalytic Activity ◽  
Light Exposure ◽  
Degradation Process ◽  
Xrd Analysis ◽  
Band Gap Energy ◽  
Alizarin Red ◽  
Doped Tio2 ◽  
Edx Analysis ◽  
Diffraction Patterns ◽  
Metal Doped

AbstractA set of transition metal doped nanosized TiO2 particles with anatase structure were synthesized by the pulverization method and their ability to photocatalytically degrade the dye Alizarin Red S was investigated. Characterization of the Zr-, Co- and Mo-doped photocatalysts was conducted with the aid of XRD, SEM, EDX, TEM, BET and spectral analysis. X-ray diffraction patterns did not reflect the appearance of any peaks due to dopants, however dopants were observed in SEM-EDX analysis. Particle sizes were in the range of 25 nm as per TEM and XRD analysis. Upon doping, a prominent decrease in surface area was observed. The percentage composition of each of the dopants was confirmed by EDX analysis. Doped samples depicted many mid-bands in the Kubelka Munk plots due to d-d transition of dopants. Experiments were conducted to compare the photocatalytic activity under identical UV and solar light exposure. Zr-doped TiO2 at the molecular scale exhibited better photocatalytic activity in degradation of Alizarin, with a lower band-gap energy that can respond to visible light. However, Co- and Mo-doped TiO2 appeared to suppress the photoactivity. A rise in the number of mid-bands causing effective separation or recombination of charge carriers strongly influences the rate of the degradation process.

Photocatalytic activity of one step flame-made fluorine doped TiO2

2016 ◽  
Vol 521 ◽  
pp. 220-226 ◽  
Author(s):  
Maria Vittoria Dozzi ◽  
Alessio Zuliani ◽  
Ivan Grigioni ◽  
Gian Luca Chiarello ◽  
Laura Meda ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Doped Tio2 ◽  
One Step
Sign in / Sign up

Export Citation Format

Share Document