Synthesis of nanosized TiO2 particles on activated carbon

被引：0

作者：

Ljutzkanov, L. ^{[2
]}

Starnbolova, I. ^{[1
]}

Blaskov, V. ^{[1
]}

Vassilev, S. ^{[3
]}

Petkova, V. ^{[4
]}

Tsacheva, Ts. ^{[5
]}

Mehandjiev, D. ^{[1
]}

机构：

[1] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, BU-1113 Sofia, Bulgaria

[2] Bulgarian Acad Sci, Inst Chem Engn, BU-1113 Sofia, Bulgaria

[3] Bulgarian Acad Sci, Inst Electrochem & Energy Syst, BU-1113 Sofia, Bulgaria

[4] Bulgarian Acad Sci, Acad I Kostov Cent Lab Mineral & Crystallog, BU-1113 Sofia, Bulgaria

[5] Bulgarian Acad Sci, Inst Phys Chem, BU-1113 Sofia, Bulgaria

来源：

BULGARIAN CHEMICAL COMMUNICATIONS | 2008年 / 40卷 / 02期

关键词：

TiO2; activated carbon; porosity; nanocomposites;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanosized TiO2 particles, loaded on activated carbon, were obtained successfully by an original method of pyrolysis in a stream of exhaust gas and water vapour at two different temperatures. The samples were characterized by XRD and DTA/TGA. The XRD analysis shows that the powders, obtained at the lower temperature (680 degrees C), consist of three phases - mainly anatase, some Ti2O3 and Ti4O7, while the calcination at 830 degrees C leads to a change in the phase composition - prevailing rutile, anatase and Ti2O3. The size of the crystallites was evaluated by Scherrer's formula and it was in the range of 10-40 nm. Adsorption-desorption isotherms were measured. The specific surface area and pore size distribution were evaluated. The TiO2 on activated carbon composites prepared at 680 degrees C possess relatively high specific surface area (480 m(2)/g) and total pore volume of 0.4 cm(3)/g. Both samples contain rnicropores and mesopores.

引用

页码：109 / 113

页数：5

共 14 条

[1] Sol-gel preparation of mesoporous photocatalytic TiO2 films and TiO2/Al2O3 composite membranes for environmental applications [J].

Choi, H ;

Stathatos, E ;

Dionysiou, DD .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 63 (1-2) :60-67

[2] Deposition of anatase on the surface of activated carbon [J].

El-Sheikh, AH ;

Newman, AP ;

Al-Daffaee, H ;

Phull, S ;

Cresswell, N ;

York, S .

SURFACE & COATINGS TECHNOLOGY, 2004, 187 (2-3) :284-292

[3] Particle size effects on transformation kinetics and phase stability in nanocrystalline TiO2 [J].

Gribb, AA ;

Banfield, JF .

AMERICAN MINERALOGIST, 1997, 82 (7-8) :717-728

[4] Photocatalytic degradation of methyl orange in a sparged tube reactor with TiO2-coated activated carbon composites [J].

Li, YJ ;

Li, XD ;

Li, JW ;

Yin, J .

CATALYSIS COMMUNICATIONS, 2005, 6 (10) :650-655

[5] TiO2-coated active carbon composites with increased photocatalytic activity prepared by a properly controlled sol-gel method [J].

Li, YJ ;

Li, XD ;

Li, JW ;

Yin, J .

MATERIALS LETTERS, 2005, 59 (21) :2659-2663

[6] Molecular self-assembly of TiO2/polymer nanocomposite films [J].

Liu, YJ ;

Wang, AB ;

Claus, R .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (08) :1385-1388

[7]

LJUTZKANOV L, 2002, Patent No. 63594

[8] Surface characterization of nanostructured TiO2 and carbon blacks composites by dye adsorption and photoelectrochemical studies [J].

Rincon, M. E. ;

Trujillo-Camacho, M. E. ;

Cuentas-Gallegos, A. K. ;

Casillas, N. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 69 (1-2) :65-74

[9] A patterned-TiO2/SnO2 bilayer type photocatalyst [J].

Tada, H ;

Hattori, A ;

Tokihisa, Y ;

Imai, K ;

Tohge, N ;

Ito, S .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (19) :4585-4587

[10] A new route for preparation of TiO2-mounted activated carbon [J].

Tryba, B ;

Morawski, AW ;

Inagaki, M .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 46 (01) :203-208

← 1 2 →