The photocatalyst of TiO2 loaded with strontium ferrite were synthesized via sol-gel technology and characterized by X-ray powder diffraction (XRD), electron microscope (TEM), UV-Vis diffused
reflectance spectroscope (DRS) and vibrating sample magnetometer(VSM). The photocatalytic activities of the samples were evaluated by decolorization of methylene blue(MB) under UV irradiation. The results indicate that the TiO2 loaded strontium ferrite photocatalyst is responsive to the visible light region according to DRS analysis. It is also found that the composite has good magnetic property. About 99.1% MB can be removed at the catalyst dosage of 1.5g/L under UV irradiation for 300 min, when the catalyst is loaded with 20% strontium ferrite.
CHU Jin-Yu
,
YU Qi
,
WU Chun-Du
,
CAO Chang-Le
,
LI Ning
. Preparation and Characterization of Magnetic Photocatalysts TiO2 Loaded with Strontium Ferrite[J]. Journal of Inorganic Materials, 2008
, 23(4)
: 652
-656
.
DOI: 10.3724/SP.J.1077.2008.00652
[1] Serpone N. Solar Energy Mater Solar Cells, 1995, 38 (3): 369--379.
[2] Sodergren S, Hagfeldt A, Olsson J, et al. Journal of Physical Chemistry, 1994, 98 (21): 5552--5556.
[3] Kang M, Hong W J, Park M S. Applied Catalysis B: Environmental, 2004, 53 (3): 195--205.
[4] Li X S, Fryxell G E, Engelhard M H, et al. Inorganic Chemistry Communications, 2007, 10 (6): 639--641.
[5] Bideau M, Claudel B, Dubien C, et al. Journal of Photochemistry and Photobiology A: Chemistry, 1995, 91 (2): 137--144.
[6] Mazzarino I, Piccinini P, Spinelli L. Catalysis Today, 1999, 48 (4): 315--321. [7] Beydoun D, Amal R. Materials Science and Engineering, 2002, 94 (1): 71--81.
[8] Watson S, Beydoun D, Amal R. Journal of Photochemistry and Photobiology, 2002, 148 (3): 303--313.
[9] Fu W Y, Yang H B, Li M H, et al. Materials Letters, 2005, 59 (27): 3530--3534.
[10] Beydoun D, Amal R, Low G, et al. Journal of Molecular Catalysis A: Chemical, 2002, 180 (2): 193--200.
[11] Rana S, Srivastava R S, Sorensson M M, et al. Materials Science and Engineering, 2005, 119 (2): 144--151.
[12] Xu S H, Shangguan W F, Yuan J, et al. Science and Technology of Advanced Materials, 2007, 8 (1-2): 40--46.
[13] Cheng P, Li W, Zhou T L, et al. Journal of Photochemistry and Photobiology A: Chemistry, 2004, 168 (1-2): 97--101.
[14] Yuan Z H, You W, Jia J H, et al. Chinese Physics Letters, 1998, 15 (7): 535--536.
[15] Liu J J, Lu G X, He H L, et al. Mater. Res. Bull., 1996, 31 (9): 1049--1056.
[16] 袁志好, 孙永昌, 王玉红, 等. 高等学校化学学报, 2004, 25 (10): 1875--1878.
[17] 廖振华, 陈建军, 姚可夫, 等(LIAO Zhen-Hun, et al). 无
机材料学报(Journal of Inorganic Materials), 2004, 19 (4): 749--754.
[18] 尹京花, 赵莲花, 武伦鹏, 等. 分子催化, 2006, 20 (6): 569--573.