Fluorinated Mesoporous Anatase TiO2 Microspheres with High Surface and Enhanced Photocatalytic Activity for the Degradation of Methyl Orange

2018 ◽  
Vol 59 (4) ◽  
pp. 428-435 ◽  
Author(s):  
Zh. Xu ◽  
L. Wang ◽  
H. Yuan ◽  
Sh. Wang ◽  
X. Zhou
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
High Surface ◽  
Anatase Tio2 ◽  
Tio2 Microspheres ◽  
Degradation Of Methyl Orange

Hydrothermal Synthesis and Characterisation of Cu Doped TiO2 Nanotubes for Photocatalytic Degradation of Methyl Orange

2014 ◽  
Vol 911 ◽  
pp. 126-130 ◽  
Author(s):  
Mohd Hasmizam Razali ◽  
M.N. Ahmad-Fauzi ◽  
Abdul Rahman Mohamed ◽  
Srimala Sreekantan
Keyword(s):  
Electron Microscopy ◽  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Uv Light ◽  
High Surface ◽  
High Surface Area ◽  
Morphological Studies ◽  
Doped Titanium Dioxide ◽  
Degradation Of Methyl Orange

Copper doped titanium dioxide (Cu-TiO2) nanotubes were synthesised by hydrothermal method. The samples were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and nitrogen gas adsorption. The photocatalytic activity of the copper doped titanium dioxide nanotubes was investigated by photodegradation of methyl orange under UV light. The structural and morphological studies showed that, the copper was incorporated into interstitial positions of the TiO2lattice to form a new phase of TiO2(hexagonal). The copper doped TiO2nanotubes possessed high surface area and pore volume, results high photocatalytic activity for degradation of methyl orange (MO).

Enhanced photocatalytic activity of (Mo, C)-codoped anatase TiO2 nanoparticles for degradation of methyl orange under simulated solar irradiation

2010 ◽  
Vol 25 (12) ◽  
pp. 2392-2400 ◽  
Author(s):  
Pengyu Dong ◽  
Bin Liu ◽  
Yuhua Wang ◽  
Huanhuan Pei ◽  
Shu Yin
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Energy Gap ◽  
Adsorption Property ◽  
Sol Gel ◽  
Anatase Tio2 ◽  
Solar Irradiation ◽  
Sol Gel Process ◽  
Simulated Solar Irradiation ◽  
Degradation Of Methyl Orange

C-doped, Mo-doped, and (Mo, C)-codoped TiO2 photocatalysts were prepared by a sol-gel process. The photocatalytic activity was evaluated by the photocatalytic degradation of methyl orange (MO) under simulated solar irradiation. Results indicated that both monodoped and codoped TiO2 exhibited better visible light absorption behavior and narrower energy gap than pure TiO2, and codoped TiO2 showed a slightly higher adsorption property in the dark because of higher Brunauer–Emmett–Teller-specific surface area. The photocatalytic activity of monodoped TiO2 was also enhanced, and the (0.04% Mo, C)-codoped sample had the best photocatalytic activity for degrading MO among all of the samples. The reason can be ascribed to the synergistic effect due to Mo and C doping. Furthermore, the transfer pathways of photoinduced carriers and photocatalytic reaction mechanism of (Mo, C)-codoped TiO2 was first investigated.

Enhanced photocatalytic activity of europium doped TiO2 under sunlight for the degradation of methyl orange

2017 ◽  
Vol 28 (15) ◽  
pp. 11002-11011 ◽  
Author(s):  
G. V. Khade ◽  
N. L. Gavade ◽  
M. B. Suwarnkar ◽  
M. J. Dhanavade ◽  
K. D. Sonawane ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Doped Tio2 ◽  
Degradation Of Methyl Orange

Synthesis and photocatalytic activity of porous anatase TiO2 microspheres composed of {010}-faceted nanobelts

2013 ◽  
Vol 42 (13) ◽  
pp. 4365 ◽  
Author(s):  
Jun Zhao ◽  
Xiao-Xin Zou ◽  
Juan Su ◽  
Pei-Pei Wang ◽  
Li-Jing Zhou ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Anatase Tio2 ◽  
Tio2 Microspheres

Preparation of Zno-Cr2O3 Composites by a Sol-Gel Method and their Photocatalytic Activities

2012 ◽  
Vol 151 ◽  
pp. 365-367 ◽  
Author(s):  
Kai Yuan Gu ◽  
Zhan En Peng ◽  
Jin Hua Feng ◽  
Feng Qiang Sun
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Sol Gel ◽  
Mercury Lamp ◽  
Gel Method ◽  
Sol Gel Method ◽  
Photocatalytic Activities ◽  
Degradation Of Methyl Orange

The ZnO-Cr2O3 composites with different complex proportion were prepared by a sol-gel method. The mol ratio of Zn and Cr element could be tuned by controlling the concentration of the precursors. These composites showed photocatalytic activities in degradation of methyl orange under the irradiation of 300W mercury lamp. And the activities regularly varied with the mol ratio of Zn and Cr. When n（Zn）:n（Cr）=10:1, a composite with best photocatalytic activity could be obtained.

Effect of pretreatment temperature on the photocatalytic activity of microwave irradiated porous nanocrystalline ZnO

2015 ◽  
Vol 39 (1) ◽  
pp. 321-332 ◽  
Author(s):  
Tarek T. Ali ◽  
Katabathini Narasimharao ◽  
Ivan P. Parkin ◽  
Claire J. Carmalt ◽  
Sanjayan Sathasivam ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Crystallite Size ◽  
Band Gap Energy ◽  
Gap Energy ◽  
Pretreatment Temperature ◽  
Short Time ◽  
High Band ◽  
Degradation Of Methyl Orange

ZnO treated at 200 °C offered high photocatalytic degradation of methyl orange (99%) in a short time (90 min). The activity can be attributed to several factors including low crystallite size, high band gap energy and porosity.

Sign in / Sign up

Export Citation Format

Share Document