Xing HongWei, Gu ShaoPeng, Yang LiRong, Liu ZhiGang, Sun RuiJing, Wang NiNan. Preparation and Performance Characterization of Photocatalytic Material of Blast Furnace Slag Fibre Loaded by SiO2 and TiO2[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 70-75. doi: 10.7513/j.issn.1004-7638.2016.03.014
Citation:
Xing HongWei, Gu ShaoPeng, Yang LiRong, Liu ZhiGang, Sun RuiJing, Wang NiNan. Preparation and Performance Characterization of Photocatalytic Material of Blast Furnace Slag Fibre Loaded by SiO2 and TiO2[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 70-75. doi: 10.7513/j.issn.1004-7638.2016.03.014
Xing HongWei, Gu ShaoPeng, Yang LiRong, Liu ZhiGang, Sun RuiJing, Wang NiNan. Preparation and Performance Characterization of Photocatalytic Material of Blast Furnace Slag Fibre Loaded by SiO2 and TiO2[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 70-75. doi: 10.7513/j.issn.1004-7638.2016.03.014
Citation:
Xing HongWei, Gu ShaoPeng, Yang LiRong, Liu ZhiGang, Sun RuiJing, Wang NiNan. Preparation and Performance Characterization of Photocatalytic Material of Blast Furnace Slag Fibre Loaded by SiO2 and TiO2[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 70-75. doi: 10.7513/j.issn.1004-7638.2016.03.014
School of Metallurgy and Energy, North China University of Science and Technology, Key Laboratory of Modern Metallurgy Technology of Hebei Province, Key Laboratory of Inorganic Nonmetallic Materials of Hebei Province, Tangshan 063009, Hebei, China
Received Date: 2015-10-10 Available Online:
2023-12-04
Photocatalytic material of TiO2/SiO2/BFSF was prepared by loading SiO2 and TiO2 on the surface of blast furnace slag fibre(BFSF) in sequence using sol-gel process,with BFSF as the carrier.The effects of SiO2 loading,times of impregnation in TiO2 sol,calcination temperature and recycle times on photocatalytic activity of the prepared material were investigated.The microstructure and phase compositions of the obtained photocatalytic material were characterized by SEM and XRD,respectively.The photocatalytic activity of the material was evaluated by degradation of methylene blue(MB).The results show that SiO2 loaded on BFSF can inhibit the crystal growth of TiO2,increase loading capacity of TiO2 and enhance photocatalytic activity of the material.An uniform-compact anatase TiO2 layer was formed on the surface of TiO2/SiO2/BFSF with the most excellent photocatalytic activity under conditions of impregnation in TiO2 sol for 3 times and calcination at 450℃.With irradiation for 180 min under ultraviolet light,the degradation rate of MB can reach to 96.1% and maintain at 67% after 4 times of recycle of the TiO2/SiO2/BFSF photocatalytic material.
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