Preparation and Properties of Yb Doped TiO2 Photocatalysts

doi:10.7517/j.issn.1674-0475.2005.06.453

Abstract

Abstract: Yb/Ti samples were prepared by sol-gel process and characterized by means of XRD and BET.After doped with Yb,the particle diameter of catalyst was decreased,the specific surface area was increased,the formation rate of hydroxyl radical on the catalyst was increased,and the catalytic activity was improved.Using phenol as the model compound of the photocatalytic degradation reaction,the activity of the prepared photocatalysts was investigated in suspension irradiated by high-pressure mercury lamp.The hydroxyl radical produced in the supernatant of the irradiated catalyst suspension containing terephthalic acid were also investigated by measuring the fluorescence derived by the reaction with terephthalic acid.As the result showed,the addition of Yb to TiO₂ notably enhanced its photocatalytic activity.The adsorption constants of phenol on the Yb doped catalysts and the nonmodified TiO₂ catalyst were evaluated,and the result showed the adsorption of phenol on the Yb/Ti catalysts was improved.The optimum loading amount of Yb ion is 0.8%(molar ratio).

Key words: photocatalysis, TiO₂, Yb, doping, phenol

CLC Number:

O643

LI Hui-quan, CHEN Wei-fan, MA Ji-long, CUI Yu-min. Preparation and Properties of Yb Doped TiO₂ Photocatalysts[J]. Imaging Science and Photochemistry, 2005, 23(6): 453-459.

References

[1] 张谦温,张菡,刘新香,等.Al₂O₃-TiO₂为载体的前加氢催化剂研究[J].石油化工,2000,29(6):413-417Zhang Q W,Zhang H,Liu X X,et al. Studies on aluminium-titanium oxide as support for front-end hydrogenation catalyst[J]. Petrochemical Technology,2000,29(6) :413-417.
[2] 魏昭彬,辛勤,盛世善,等.Co-Mo/TiO₂和Co-Mo/γ-Al₂O₃加氢脱硫催化剂的研究[J].催化学报,1994,15(4):243-249.Wei Z B,Xin Q,Sheng S S,et al. Studies on Co-Mo/TiO₂ and Co-Mo/γ-Al₂O₃ hydrodesulfurization catalysts[J].Chin .J. Catal. ,1994,15(4): 243-249.
[3] 周磊,刘昌,赵文宽,等.液相沉积法制备光催化活性掺铁TiO₂薄膜[J].催化学报,2003,24(5):359-363.Zhou L,Liu C,Zhao W K,et al. Photocatalytic activity of Fe³⁺ -doped TiO₂ thin films prepared via liquid-phase deposition[J]. Chin. J . Catal . ,2003,24(5) :359-363.
[4] Choi W,Termin A,Hoffmann M R. The role of metal ion dopants in quantum-sized TiO₂: correlation between photoreactivity and charge carrier recombination dynamics[J].J. Phys. Chem. ,1994,98(51): 13669-13679.
[5] Iwasaki M,Hara M,Kawada H,et al. Cobalt ion-doped TiO₂ photocatalyst response to visible light [J].J. Colloid Interface Sci.,2000,224(1): 202-204.
[6] 高远,徐安武,祝静艳,等.RE/TiO₂用于NO₂-光催化氧化的研究[J].催化学报,2001,22(1):53-56.Gao Y,Xu A W,Zhu J Y,et al. Study on photocatalytic oxidation of nitrite over RE/TiO₂ photocatalysts[J]. Chin J. Catal.,2001,22(1): 53-56.
[7] 李越湘,吕功煊,李树本,等.光催化降解污染物制氢反应与原红外表征[J].物理化学学报,2003,19(4):329-333.Li Y X,Lü G X,Li S B,et al. Photocatalytic production of hydrogen with degrading pollutants and characterization by in situ infrared spectroscopy[J]. Acta Phys-Chim Sin,2003,19(4): 329-333.
[8] Barreto J C,Smith G S,Strobel N H P,et al. Terephthalic acid:a dosimeter for the detection of hydroxyl radicals in vitro[J]. Life Sci.,1995,56(4),89-96.
[9] Hirakawa T,Nosaka Y. Properties of O₂· and ·OH formed in TiO₂ aqueous suspensions by photocatalytic reaction and influence of H₂O₂ and some ions [J]. Langmuir,2002,18:3247-3254.
[10] Ranjite K T,Willner I,Bossmann S H,et al. Lanthanide oxide doped titanium dioxide photocatalysts:effective photocatalysts for the enhanced degradation of salicylic acid and t-cinnamic acid[J]. Journal of Catalysis,2001,204:305-313.
[11] 李慧泉,李越湘,周新木,等.La₂O₃掺杂TiO₂光催化剂的制备和性能[J].分子催化,2004,18(4):304-309.Li H Q,Li Y X,Zhou X M,et al. Preparation and properties of La₂O₃ doping TiO₂ photocatalyst[J].J. Mol.Catal.,2004,18(4): 304-309.
[12] Ishibashi k,Fujishima A,Watanabe T,et al. Detection of active oxidative species in TiO₂ photocatalysis using the fluorescence technique[J]. Electrochem. Commun.,2000,2:207-210.
[13] Horikoshi S,Hidaka H. Environmental remediation by an integrated microwave/UV-illumination method. 1. Microwave-assisted degradation of Rhodamine-B dye in aqueous TiO₂ dispersions[J]. Enviro. Sci. Technol. ,2002,36:1357-1366.
[14] Hoffmann M R,Mattin S T,Choi W,et al. Environmental applications of semiconductor photocatalysis[J]. Chem.Rev. ,1995,95(1): 69-96.

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Preparation and Properties of Yb Doped TiO₂ Photocatalysts

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