Nanosized anatase TiO2 single crystals for enhanced photocatalytic activity

2010 ◽  
Vol 46 (5) ◽  
pp. 755-757 ◽  
Author(s):  
Gang Liu ◽  
Chenghua Sun ◽  
Hua Gui Yang ◽  
Sean C. Smith ◽  
Lianzhou Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Single Crystals ◽  
Anatase Tio2

Anatase TiO2 single crystals with dominant {0 0 1} facets: Synthesis, shape-control mechanism and photocatalytic activity

2018 ◽  
Vol 444 ◽  
pp. 267-275 ◽  
Author(s):  
Huifen Tong ◽  
Yingying Zhou ◽  
Gang Chang ◽  
Pai Li ◽  
Ruizhi Zhu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Single Crystals ◽  
Shape Control ◽  
Control Mechanism ◽  
Anatase Tio2

Synthesis and hydrogenation of anatase TiO2 microspheres composed of porous single crystals for significantly improved photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (67) ◽  
pp. 62907-62910 ◽  
Author(s):  
Jinan Niu ◽  
Shaishai Shen ◽  
Lu Zhou ◽  
Zhangsheng Liu ◽  
Peizhong Feng ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Single Crystals ◽  
Anatase Tio2 ◽  
Facile Synthesis ◽  
Tio2 Microspheres ◽  
Hydrogenation Effect

We developed a facile synthesis of anatase microspheres composed of porous single crystals in the absence of preseeding treatment, and examined the hydrogenation effect of porous TiO2 on the photocatalytic activity.

scholarly journals Controllable Synthesis and Photocatalytic Activity of Anatase TiO2 Single Crystals with Exposed {110} Facets

2012 ◽  
Vol 33 (11-12) ◽  
pp. 1743-1753 ◽  
Author(s):  
Qian WU ◽  
Zhijiao WU ◽  
Yongliang LI ◽  
Hongtao GAO ◽  
Lingyu PIAO ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Single Crystals ◽  
Anatase Tio2 ◽  
Controllable Synthesis

scholarly journals Effect of polyethylene glycol on crystal growth and photocatalytic activity of anatase TiO2 single crystals

RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12511-12518 ◽  
Author(s):  
Yeshuo Dong ◽  
Fanjun Meng
Keyword(s):  
Molecular Weight ◽  
Photocatalytic Activity ◽  
Crystal Growth ◽  
Polyethylene Glycol ◽  
Single Crystals ◽  
Anatase Tio2 ◽  
Low Molecular Weight

Anatase TiO2 crystals with different structures were synthesized. Experiments on the effect of polyethylene glycol show that the low molecular weight PEG (PEG400) can accelerate crystal differentiation and relieve the agglomeration of crystals.

scholarly journals Effect of triblock copolymers on crystal growth and the photocatalytic activity of anatase TiO2 single crystals

RSC Advances ◽  
2020 ◽  
Vol 10 (54) ◽  
pp. 32400-32408
Author(s):  
Yeshuo Dong ◽  
Fanjun Meng
Keyword(s):  
Photocatalytic Activity ◽  
Crystal Growth ◽  
Single Crystals ◽  
Triblock Copolymer ◽  
Solvothermal Method ◽  
Triblock Copolymers ◽  
Anatase Tio2

The effects of triblock copolymers (P123 and F127) on the growth of TiO2 crystals were studied. Anatase TiO2 crystals with different morphologies and structures were synthesized by controlling the content and type of triblock copolymer in a solvothermal method.

First-Principles Study on Electronic and Optical Properties in Pr-Doped Anatase TiO2

2014 ◽  
Vol 924 ◽  
pp. 260-268 ◽  
Author(s):  
Hao Chen ◽  
Lan Fang Yao ◽  
Song Lin Yang ◽  
Ya Qin Wang ◽  
Xing Liang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photocatalytic Activity ◽  
First Principles ◽  
Energy Gap ◽  
Impurity Band ◽  
Anatase Tio2 ◽  
Electron Hole ◽  
Light Region ◽  
Overlap Population ◽  
Calculation Results

The crystal structures, band structures, density of states, charge density, overlap population and optical properties of pure anatase TiO2 and Pr-doped anatase TiO2 were studied by using the plane-wave pseudopotential method based on the first-principles. After Pr doping, the valence band and the conduction band moved down and became dense, energy gap became narrow and a impurity band which consists of Pr 4f states appeared. And the dipole moment got improved, which is good for the separate of the electron-hole pairs. These effectively overcome two huge shortcomings of TiO2. Besides, Pr-doped anatase TiO2 produced more carriers which have good transport properties and the absorption spectra of Pr-O bond appear in the region that the wavelength is longer. The calculation results of optical properties show that the absorption edge occured red shift, which means the photocatalytic activity of anatase TiO2 got remarkable improved during visible-light region. This conforms to the previous analysis. So the photocatalytic activity of anatase TiO2 got remarkable improved after Pr doping.

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