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Photocatalytic degradation of Acid Blue 62 over CuO-SnO_2 nanocomposite photocatalyst under simulated sunlight 被引量:17

Photocatalytic degradation of Acid Blue 62 over CuO-SnO_2 nanocomposite photocatalyst under simulated sunlight
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摘要 The novel CuO-SnO2 nanocomposite oxide photocatalysts were prepared by simple co-precipitation method, and characterized by X- ray diffraction, transmission electron microscopy, N2 adsorption-desorption measurement and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activities of CuO-SnO2, evaluated using the photodegradation of Acid Blue 62 as a probe reaction under the irradiation of Xenon light, were also found to be related to the calcination temperature and the molar ratio of Cu to Sn. The maximum photocatalytic activity of the CuO-SnO2 photocatalyst was observed to be calcined at 500~C for 3 h (the molar ratio of Cu to Sn was 1:1) due to the sample with good crystallization and high surface area. It also showed much higher photocatalytic activity in treatment dye wastewater under simulated sunlight irradiation compared to Degussa P25 TiO2. The novel CuO-SnO2 nanocomposite oxide photocatalysts were prepared by simple co-precipitation method, and characterized by X- ray diffraction, transmission electron microscopy, N2 adsorption-desorption measurement and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activities of CuO-SnO2, evaluated using the photodegradation of Acid Blue 62 as a probe reaction under the irradiation of Xenon light, were also found to be related to the calcination temperature and the molar ratio of Cu to Sn. The maximum photocatalytic activity of the CuO-SnO2 photocatalyst was observed to be calcined at 500~C for 3 h (the molar ratio of Cu to Sn was 1:1) due to the sample with good crystallization and high surface area. It also showed much higher photocatalytic activity in treatment dye wastewater under simulated sunlight irradiation compared to Degussa P25 TiO2.
出处 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2007年第9期1141-1145,共5页 环境科学学报(英文版)
基金 Project supported by the National Natural Science Foundation of China(No. 20677008) the Innovation Foundation of Donghua University for Doctors(No. 113-06-001900621).
关键词 PHOTOCATALYSIS copper oxide tin dioxide Acid Blue 62 (AB62) simulated sunlight photocatalysis copper oxide tin dioxide Acid Blue 62 (AB62) simulated sunlight
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  • 1Asahi R, Morikawa T, Ohwaki K et al., 2001. Visible-light photocatalysis in nitrogen-doped titanium oxides[J]. Science, 293: 269-271.
  • 2Choi W, Termin A, Hoffmann M R, 1994. Role of metal ion dopants in quantumsized TiO2 correlation between photoreactivity and charge carrier recombination dynamics[J]. J Phys Chem, 98: 13669-13679.
  • 3Fernandez A, Lassaletta G, Jimenez V M et al., 1995. Preparation and characterization of TiO2 photocatalysts supported on various rigid supports(glass, quartz and stainless steel). Comparative studies of photocatalytic activity in water purification [ J ]. Applied Catalysis B: Environmental, 7:49-59.
  • 4Fernandez-Ibanez P, de las Nieves F J, Malato S, 2000. Titanium dioxide/electrolyte solution interface: Electron transfer phenomena [ J ]. J Colloid Interface Sci, 227(2): 510-516.
  • 5Fujishima A, Honda K, 1972. Electurochemical photolysis of water at a semiconductor electrode[J]. Nature, 238: 37-38.
  • 6Herrmann J M, Disdier J, Courbon H, 1984. Modification of the TiO2 electron density by ion doping or metal deposit and consequences for photoassisted reactions[J]. Chem Phys Lett, 108: 319-326.
  • 7Iwasaki M, Hara M, Kawada H et al., 2000. Cobalt ion-doped TiO2 photocatalyst response to visible light [ J ]. Journal of Colloid and Interface Science, 224( 1 ): 202-204.
  • 8Jorda E, Tuel A, Teissiery R et al. , 1998. Synthesis, characterization, and activity in the epoxidation of cyclohexene with aqueous H2 O2 of catalysts prepared by reaction of TiF4 with silica[J]. J Catal, 175: 93-107.
  • 9Karakitsou K E, Verykios X E, 1993. Effects of altervalent cation doping of TiO2on its performance as a photocatalyst for water cleavage[J]. J Phys Chem,97: 1184-1189.
  • 10Khan S U M, Mofareh Al-Shahry, William B et al., 2002. Efficient photochemical water splitting by a chemically modified n-TiO2 [ J]. Science,297: 2243-2245.

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