Influence of Reduction Temperature on Specific Surface Area of SSI

Abstract:

Spherical sponge iron (SSI) with high activity and intension possesses potential characteristics to be utilized as wastewater treatment material. Influence of reductive temperature on specific surface area and distribution of holes with different diameter were investigated. It was suggested that reductive temperature has significant influence on the specific surface area of SSI. When the temperature was controlled at T1 to T5, the porosity was 42.57% to 51.91%. When the temperature was lower than T4, the specific surface area was belonged to the range from 1.867 m2/g and 3.089 m2/g, while which declined sharply to 0.616 m2/g as the temperature increased to T5. When the reductive temperature was lower than T4, mean pore size varied from 275.7 nm to 449.6 nm, while which increased abruptly to 1270 nm as temperature increased T5. To utilize the SSI in wastewater treatment to remove pollutants, T4 was the optimized temperature.

• Periodical: Advanced Materials Research (Volumes 450-451)
• Pages: 568-572
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.450-451.568
• Online since: January 2012
• Authors: Jun Guo Li, Wei Tian, Shou Zhang Li
• Keywords: Mean Pore Size, Reduction Temperature, Specific Surface Area, Spherical Sponge Iron (SSI)

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