Synthesis and Photocatalytic Activity of Fe-doped TiO2 Supported on Hollow Glass Microbeads

被引：24

作者：

Zhao, Wenyan ^{[1
]}

Fu, Wuyou ^{[1
]}

Yang, Haibin ^{[1
]}

Tian, Chuanjin ^{[2
]}

Li, Minghui ^{[1
]}

Ding, Juan ^{[1
]}

Zhang, Wei ^{[1
]}

Zhou, Xiaoming ^{[1
]}

Zhao, Hui ^{[1
]}

Li, Yixing ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

[2] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China

来源：

NANO-MICRO LETTERS | 2011年 / 3卷 / 01期

关键词：

TiO2; Sol-gel method; Semiconductor; Photocatalytic activity; Hollow glass microbeads; SEMICONDUCTOR; OXIDATION; ACID;

D O I：

10.1007/BF03353647

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper, Fe-doped TiO2 photocatalyst supported on hollow glass microbeads (Fe-TiO2/beads) is prepared by dip-coating method, which uses hollow glass microbeads as the carriers and tetrabutylorthotitanate [Ti(OC4H9)(4)] as the raw material. The phase structure, ingredient, morphologies, particle size and shell thickness of the products are characterized by X-ray powder diffraction (XRD), energy-dispersive spectroscopy (LDS) and field emission scanning electron microscope (FESEM). The feasibility of photocatylic degradation of Rhodamine B (RhB) under illumination of UV-vis light is studied. The results show that the core-shell structure catalyst is composed of Fe-doped anatase TiO2 and hollow glass microbeads, and the catalytic activity of the TiO2 is markedly enhanced by Fe ion doping. The optimum concentration of Fe ion is 0.1% (molecular fraction) in the precursor and the photocatalytic activity can be increased to 98% compared with that of the undoped one. The presence of ferrum elements neither influences the transformation of anatase to rutile, nor creates new crystal phases. The possible mechanism of photocatalytic oxidation is also discussed.

引用

页码：20 / 24

页数：5

共 23 条

[1]

Alexei E. V., 2005, J PHYS CHEM B, V109, P24441

[2] Design and development of titanium oxide photocatalysts operating under visible and UV light irradiation.: The applications of metal ion-implantation techniques to semiconducting TiO2 and Ti/zeolite catalysts [J].

Anpo, M ;

Takeuchi, M ;

Ikeue, K ;

Dohshi, S .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2002, 6 (05) :381-388

[3] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].

Asahi, R ;

Morikawa, T ;

Ohwaki, T ;

Aoki, K ;

Taga, Y .

SCIENCE, 2001, 293 (5528) :269-271

[4] Mechanism of photocatalytic oxidation of 3,4-dichlorophenol on TiO2 semiconductor surfaces [J].

Axelsson, AK ;

Dunne, LJ .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2001, 144 (2-3) :205-213

[5] Study on the photocatalytic oxidation of NO2- ions using TiO2 beads as a photocatalyst [J].

Chen, Shifu ;

Cao, Gengyu .

DESALINATION, 2006, 194 (1-3) :127-134

[6]

Erwin R., 2009, J AM CHEM SOC, V131, P18457

[7] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].

HOFFMANN, MR ;

MARTIN, ST ;

CHOI, WY ;

BAHNEMANN, DW .

CHEMICAL REVIEWS, 1995, 95 (01) :69-96

[8]

Kisch H, 1998, ANGEW CHEM INT EDIT, V37, P3034, DOI 10.1002/(SICI)1521-3773(19981116)37:21<3034::AID-ANIE3034>3.0.CO

[9]

2-2

[10] TiO2 photocatalytic oxidation of monochloroacetic acid and pyridine:: influence of ozone [J].

Kopf, P ;

Gilbert, E ;

Eberle, SH .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2000, 136 (03) :163-168

← 1 2 3 →