Effect of nickel doping on the optical property and photocatalytic activity of titanium dioxide nanoparticles

2013 ◽  
Vol 8 (4) ◽  
pp. 184-187 ◽  
Author(s):  
Susmita Paul ◽  
Amarjyoti Choudhury ◽  
Shreedhar Bojja
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Optical Property ◽  
Titanium Dioxide Nanoparticles ◽  
Nickel Doping

scholarly journals Rapid preparation of terbium-doped titanium dioxide nanoparticles and their enhanced photocatalytic performance

2019 ◽  
Vol 6 (10) ◽  
pp. 191077 ◽  
Author(s):  
Zhencui Wang ◽  
Yuechao Song ◽  
Xingfei Cai ◽  
Jun Zhang ◽  
Tianle Tang ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Photocatalytic Performance ◽  
Diffuse Reflectance Spectroscopy ◽  
Titanium Dioxide Nanoparticles ◽  
Earth Metal ◽  
Nitrate Hexahydrate ◽  
Doping Amount ◽  
X Ray ◽  
Low Toxicity

Further applications of photocatalysis were limited by the high recombination probability of photo-induced electron–hole pairs in traditional titanium dioxide nanoparticles (TiO 2 NPs). Herein, we modified them with rare earth metal via a facile sol–gel method, using tetrabutyl titanate as a precursor and terbium (III) nitrate hexahydrate as terbium (Tb) source. The resulting samples with different Tb doping amounts (from 0 to 2%) have been characterized by X-ray diffraction, UV–visible diffuse reflectance spectroscopy, X-ray photo-electron spectroscopy and a scanning electron microscope. The photocatalytic performance of Tb-doped TiO 2 was evaluated by the degradation of methylene blue. The effects of Tb doping amount and initial pH value of solution were investigated in detail. The composite with Tb doping amount of 1.0 wt% showed the highest photocatalytic performance. It exhibited approximately three times enhancement in photocatalytic activity with a reaction rate constant of 0.2314 h −1 when compared with that of commercial P25 (0.0827 h −1 ). In addition, it presented low toxicity on zebrafishes with 96 h-LC 50 of 23.2 mg l −1 , and has been proved to be reusable for at least four cycles without significant loss of photocatalytic activity. A probable photocatalytic mechanism of Tb-doped TiO 2 was proposed according to the active species trapping experiments. The high photocatalytic performance, excellent reusability and low toxicity of Tb-doped TiO 2 indicated that it is a promising candidate material in the future treatment of dye wastewater.

Fabrication and photocatalytic activity of electrospun nylon-6 nanofibers containing tourmaline and titanium dioxide nanoparticles

2013 ◽  
Vol 39 (6) ◽  
pp. 7143-7148 ◽  
Author(s):  
Seung-Ji Kang ◽  
Leonard D. Tijing ◽  
Bo-sang Hwang ◽  
Zhe Jiang ◽  
Hak Yong Kim ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Titanium Dioxide Nanoparticles ◽  
Nylon 6

scholarly journals Synthesis and photocatalytic activity of copper and nitrogen co-doped titanium dioxide nanoparticles

2020 ◽  
Vol 16 ◽  
pp. 102948 ◽  
Author(s):  
Voranuch Thongpool ◽  
Akapong Phunpueok ◽  
Sarawut Jaiyen ◽  
Thitaya Sornkwan
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Titanium Dioxide Nanoparticles ◽  
Doped Titanium Dioxide ◽  
Co Doped

Production of Titanium Dioxide Nanoparticles and Nanostructures from Dye Wastewater Sludge - Characterisation and Evaluation of Photocatalytic activity

2010 ◽  
Vol 13 (1) ◽  
Author(s):  
Ibrahim J. El Saliby ◽  
H. K. Shon ◽  
Yousef H. Okour ◽  
Saravanamuthu Vigneswaran ◽  
Meena Senthilnanthanan ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Titanium Dioxide Nanoparticles ◽  
Wastewater Sludge ◽  
Dye Wastewater

AbstractProducing a useful catalyst (TiO

scholarly journals Visible Light Photocatalytic Properties of Modified Titanium Dioxide Nanoparticles via Aluminium Treatment

2016 ◽  
Vol 11 (1) ◽  
pp. 40 ◽  
Author(s):  
Dessy Ariyanti ◽  
Junzhe Dong ◽  
Junye Dong ◽  
Wei Gao
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Titanium Dioxide Nanoparticles ◽  
Wide Bandgap ◽  
Reaction Engineering ◽  
Photocatalytic Properties ◽  
Light Spectrum ◽  
Visible Light Range ◽  
Visible Light Photocatalytic

<p>Titanium dioxide (TiO2) has gained much attentions for the last few decades due to its remarkable performance in photocatalysis and some other related properties. However, its wide bandgap (~3.2 eV) can only absorb UV energy which is only ~5% of solar light spectrum. The objective of this research was to improve the photocatalytic activity of TiO2 by improving the optical absorption to the visible light range. Here, colored TiO2 nanoparticles range from light to dark grey were prepared via aluminium treatment at the temperatures ranging from 400 to 600 oC. The modified TiO2 is able to absorb up to 50% of visible light (400-700 nm) and shows a relatively good photocatalytic activity in organic dye (Rhodamine B) degradation under visible light irradiation compared with the commercial TiO2. Copyright © 2016 BCREC GROUP. All rights reserved</p><p><em>Received: 10th November 2015; Revised: 7th January 2016; Accepted: 7th January 20 </em></p><p><strong>How to Cite</strong>: Ariyanti, D., Dong, J.Z., Dong, J.Y., Gao, W. (2016). Visible Light Photocatalytic Properties of Modified Titanium Dioxide Nanoparticles via Aluminium Treatment. <em>Bulletin of Chemical Reaction Engineering &amp; Catalysis</em>, 11 (1): 40-47. (doi:10.9767/bcrec.11.1.414.40-47)</p><p><strong>Permalink/DOI</strong>: <a href="http://dx.doi.org/10.9767/bcrec.11.1.414.40-47">http://dx.doi.org/10.9767/bcrec.11.1.414.40-47</a></p>

Photocatalytic activity of titanium dioxide nanoparticles produced by methods of high-energy physical dispersion

2017 ◽  
Vol 90 (2) ◽  
pp. 179-185 ◽  
Author(s):  
R. R. Mansurov ◽  
A. P. Safronov ◽  
O. M. Samatov ◽  
I. V. Beketov ◽  
A. I. Medvedev ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Titanium Dioxide Nanoparticles ◽  
High Energy

scholarly journals Synthesis and Characterization of Active Carbon-Titanium Dioxide Composite

2019 ◽  
Vol 31 (5) ◽  
pp. 1176-1180
Author(s):  
Farah S. Daabool ◽  
Falah H. Hussein
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Activated Carbon ◽  
Uv Light ◽  
Titanium Dioxide Nanoparticles ◽  
Chemical Activation ◽  
Sol Gel ◽  
Chemical Properties ◽  
Growth Conditions ◽  
Activation Technique

Activated carbon was synthesized from Iraqi date palm seeds by physical and chemical activation technique under optimized growth conditions that allow the production of long, well aligned, high-quality activated carbon. Titanium dioxide nanoparticles were prepared using a sol gel method. The activated carbon/TiO2 composites were prepared using simple evaporation and a drying process. The structural, morphological and chemical properties of the prepared activated carbon, TiO2 and activated carbon/TiO2 composite were investigated by X-ray diffraction, Fourier transformed infrared and scanning electron microscope. The photocatalytic activity of activated carbon/TiO2 composite with 10 % of activated carbon was studied and compared with TiO2. The UV light photocatalytic activity was also evaluated by the photocatalytic degradation of phenol in an aqueous solution.

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