Study on Preparation and Photocatalytic Activity of Photocatalyst Made from Ti-Bearing Blast Furnace Slag

Abstract:

Using the Ti-bearing blast furnace slag as raw materials, hydrochloric acid as treatment agents to prepare slag containing titanium catalysts. Slag containing titanium catalyst are characterized by XRD, SEM, FT-IR, UV-Vis/NIR and some other testing methods, and the results show that its main structure is mineral perovskite phase and it also has a strong absorption capacity in the UV region. With methyl orange solution as the target degradation, influence of the calcination temperature, catalyst dosage, initial concentration and pH of the solution on the photocatalytic effect of containing titanium slag catalyst are tested. The results show that when the heat treatment temperature is 400°C, catalyst dosage is 10mg and initial concentration is 10mg·L-1; when pH is 3, the photocatalytic effect is the best, the efficiency of which reaches 95%.

• Periodical: Applied Mechanics and Materials (Volume 526)
• Pages: 33-39
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.526.33
• Online since: February 2014
• Authors: Xiang Jun Gong, Feng Jia, Rong Liu*, Fei Ye, Hao Guan, Rui Wang, Gang Guo
• Keywords: Acid Leaching Process, Photocatalysis, Ti-Bearing Blast Furnace Slag

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