Photocatalytic activity of TiO2 doped with boron and vanadium

被引:170
作者
Bettinelli, M.
Dallacasa, V.
Falcomer, D.
Fornasiero, P.
Gombac, V.
Montini, T.
Romano, L.
Speghini, A.
机构
[1] Univ Verona, Dipartimento Sci & Tecnol, I-37134 Verona, Italy
[2] INSTM, UdR Verona, I-37134 Verona, Italy
[3] Univ Verona, Lab Mat Anal, Dipartimento Sci & Tecnol, I-37134 Verona, Italy
[4] Univ Trieste, CENMAT, Dipartimento Sci Chim, I-34127 Trieste, Italy
[5] INSTM, UdR Trieste, I-34127 Trieste, Italy
[6] Univ Parma, Dipartimento Fis, I-43100 Parma, Italy
关键词
TiO2; doping; methylene blue photodegradation; boron; vanadium; ANATASE TIO2; PHASE-TRANSFORMATION; AMORPHOUS TITANIA; METHYLENE-BLUE; CODOPED TIO2; CARBON; DEGRADATION; NITROGEN; RUTILE; BROOKITE;
D O I
10.1016/j.jhazmat.2007.04.053
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Boron (B)- and vanadium (V)-doped TiO2 photocatalysts were synthesized using modified sol-gel reaction processes and characterized by X-ray diffraction (XRD), Raman spectroscopy and N-2 physisorption (BET). The photocatalytic activities were evaluated by monitoring the degradation of methylene blue (MB). The results showed that the materials possess high surface area. The addition of B favored the transformation of anatase to rutile, while in the presence of V, anatase was the only phase detected. The MB degradation on V-doped TiO2 was significantly affected by the preparation method. In fact while the presence of V in the bulk did not influence strongly the photoreactivity under visible irradiation, an increase of surface V doping lead to improved photodegradation of MB. The degradation of MB dye indicated that the photocatalytic activities of TiO2 increased as the boron doping increased, with high conversion efficiency for 9 mol% B doping. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:529 / 534
页数:6
相关论文
共 49 条
[1]   Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis [J].
Akurati, KK ;
Bhattacharya, SS ;
Winterer, M ;
Hahn, H .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (10) :2248-2254
[2]   Design of unique titanium oxide photocatalysts by an advanced metal ion-implantation method and photocatalytic reactions under visible light irradiation [J].
Anpo, M ;
Ichihashi, Y ;
Takeuchi, M ;
Yamashita, H .
RESEARCH ON CHEMICAL INTERMEDIATES, 1998, 24 (02) :143-149
[3]   THE ROLE OF THE SURFACE INTERMEDIATES IN THE PHOTOELECTROCHEMICAL BEHAVIOR OF ANATASE AND RUTILE TIO2 [J].
AUGUSTYNSKI, J .
ELECTROCHIMICA ACTA, 1993, 38 (01) :43-46
[4]   Characterization of methyl orange and its photocatalytic degradation products by HPLC/UV-VIS diode array and atmospheric pressure ionization quadrupole ion trap mass spectrometry [J].
Baiocchi, C ;
Brussino, MC ;
Pramauro, E ;
Prevot, AB ;
Palmisano, L ;
Marcì, G .
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2002, 214 (02) :247-256
[5]   RAMAN-SPECTRA OF STOICHIOMETRIC AND DEFECT RUTILE [J].
BETSCH, RJ ;
PARK, HL ;
WHITE, WB .
MATERIALS RESEARCH BULLETIN, 1991, 26 (07) :613-622
[6]   Photocatalytic, spectroscopic and transport properties of lanthanide-doped TiO2 nanocrystals [J].
Bettinelli, M. ;
Speghini, A. ;
Falcomer, D. ;
Daldosso, M. ;
Dallacasa, V. ;
Romano, L. .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2006, 18 (33) :S2149-S2160
[7]   SOL-GEL DERIVED ANATASE TIO2 - MORPHOLOGY AND PHOTOACTIVITY [J].
CAMPOSTRINI, R ;
CARTURAN, G ;
PALMISANO, L ;
SCHIAVELLO, M ;
SCLAFANI, A .
MATERIALS CHEMISTRY AND PHYSICS, 1994, 38 (03) :277-283
[8]   Improved photocatalytic activity of Sn4+ doped TiO2 nanoparticulate films prepared by plasma-enhanced chemical vapor deposition [J].
Cao, YA ;
Yang, WS ;
Zhang, WF ;
Liu, GZ ;
Yue, PL .
NEW JOURNAL OF CHEMISTRY, 2004, 28 (02) :218-222
[9]   Photoinduced reactivity of titanium dioxide [J].
Carp, O ;
Huisman, CL ;
Reller, A .
PROGRESS IN SOLID STATE CHEMISTRY, 2004, 32 (1-2) :33-177
[10]   Effects of boron doping on photocatalytic activity and microstructure of titanium dioxide nanoparticles [J].
Chen, Daimei ;
Yang, Dong ;
Wang, Qun ;
Jiang, Zhongyi .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (12) :4110-4116