Optical and Photocatalytic Properties of Carbon-Activated Anatase with Spherical Shape of Aggregates

被引：10

作者：

Krasil'nikov, V. N. ^{[1
]}

Zhukov, V. P. ^{[1
]}

Baklanova, I. V. ^{[1
]}

Gyrdasova, O. I. ^{[1
]}

Buldakova, L. Yu. ^{[1
]}

机构：

[1] Russian Acad Sci, Fed State Govt Financed Res Inst, Inst Solid State Chem, Ural Branch, Ekaterinburg 620990, Russia

来源：

CATALYSIS LETTERS | 2015年 / 145卷 / 06期

关键词：

Morphology; Carbon doping; Photocatalysis; Ab initio calculations; Optical absorption; Titanium dioxide; DOPED TIO2 ANATASE; HYDROTHERMAL SYNTHESIS; ELECTRONIC-STRUCTURE; PRECURSOR; NANOPARTICLES; TEMPERATURE; VANADIUM; SIZE;

D O I：

10.1007/s10562-014-1445-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon-doped anatase with spherical shape of aggregates has been synthesized by the developed precursor technique with the use of Ti(OCH2CH2)(2) as a precursor. The synthesized samples of the general composition TiO2-y C (y) :nC with different carbon content have been tested for the photocatalytic activity in the oxidation reaction of water-dissolved hydroquinone during irradiation in ultraviolet and visible light. It was shown that the optical and photocatalytic properties of TiO2-y C (y) :nC depend strongly on the concentration of carbon. The first-principles calculations of the electronic band structure and optical absorption spectra have been carried out. The probabilities of formation of carbon for oxygen substitutional defects and interstitial defects (implantation of carbon atoms into interstitial sites) have been analyzed. The calculations performed allowed us to determine the dominating type of defects responsible for absorption and photocatalytic activity of carbon-doped anatase in the visible spectral region. [GRAPHICS] .

引用

页码：1290 / 1300

页数：11

共 58 条

[1] Enhanced photocatalytic cytotoxic activity of Ag@Fe-doped TiO2 nanocomposites against human epithelial carcinoma cells
Abdulla-Al-Mamun, Md.
Kusumoto, Yoshihumi
Islam, Md. Shariful
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (12) : 5460 - 5469
[2] Influence of parameters on the heterogeneous photocatalytic degradation of pesticides and phenolic contaminants in wastewater: A short review
Ahmed, Saber
Rasul, M. G.
Brown, R.
Hashib, M. A.
[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2011, 92 (03) : 311 - 330
[3] Synthesis, optical properties, and photocatalytic activity of lanthanide-doped anatase
Baklanova, I. V.
Krasil'nikov, V. N.
Zhukov, V. P.
Gyrdasova, O. I.
Perelyaeva, L. A.
Buldakova, L. Yu.
Yanchenko, M. Yu.
Shein, I. R.
[J]. RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2014, 59 (02) : 29 - 33
[4] STABILITY OF THE ANATASE PHASE IN NANODIMENSIONAL TITANIUM DIOXIDE DOPED WITH EUROPIUM(III), SAMARIUM(III), AND IRON(III)
Baklanova, I. V.
Krasil'nikov, V. N.
Perelyaeva, L. A.
Gyrdasova, O. I.
[J]. THEORETICAL AND EXPERIMENTAL CHEMISTRY, 2011, 47 (04) : 215 - 218
[5] Synthesis and characterization of mesoporous TiO2 assembled as microspheres
Beitollahi, Ali
Daie, Amir Hossein Haj
Samie, Leyla
Akbarnejad, Mohammad Mehdi
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 490 (1-2) : 311 - 317
[6] Benassi A, 2008, PW SCFS EPSILON X US
[7] X-ray spectroscopic study of the electronic structure of visible-light responsive N-, C- and S-doped TiO2
Chen, Xiaobo
Glans, Per-Anders
Qiu, Xiaofeng
Dayal, Smita
Jennings, Wayne D.
Smith, Kevin E.
Burda, Clemens
Guo, Jinghua
[J]. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2008, 162 (02) : 67 - 73
[8] Fabrication and characterization of C-doped anatase TiO2 photocatalysts
Choi, Y
Umebayashi, T
Yoshikawa, M
[J]. JOURNAL OF MATERIALS SCIENCE, 2004, 39 (05) : 1837 - 1839
[9] Linear response approach to the calculation of the effective interaction parameters in the LDA+U method
Cococcioni, M
de Gironcoli, S
[J]. PHYSICAL REVIEW B, 2005, 71 (03):
[10] Theory of carbon doping of titanium dioxide
Di Valentin, C
Pacchioni, G
Selloni, A
[J]. CHEMISTRY OF MATERIALS, 2005, 17 (26) : 6656 - 6665

← 1 2 3 4 5 6 →