Perchlorate Removal using Granular Activated Carbon Supported Iron Compounds: Synthesis, Characterization and Reactivity
Document Type
Article
Publication Date
11-1-2010
Journal / Book Title
Journal of Environmental Sciences
Abstract
Synthesis and use of the iron compounds supported on granular activated carbon (ICs/GAC) have shown significant environmental implications for perchlorate (ClO4-) removal. ICs/GAC was synthesized via hydrolyzing FeSO4·7H2O on GAC, reduced by NaBH4 solution in polyethylene glycol 6000 and ethanol solution, dried in vacuum condition and exposed to air. Synthesized ICs/GAC was characterized using transmission electron micrograph (TEM), Brunauer-Emmett-Teller, X-ray photoelectron spectroscopy (XPS). ICs/GAC was determined to be containing a large amount of FeOHSO4, Fe2O3 and a small amount of zero-valent iron (ZVI) nanoparticles according to TEM and XPS measurements. Batch static kinetic tests showed that 97% of ClO4- was removed within 10 hr at 90°C and 86% of ClO4- was removed within 12 hr at 25°C, at ICs/GAC dosage of 20 g/L. The experimental results also showed that FeOHSO4 and Fe2O3 nanoparticles have the function of perchlorate adsorption and play important roles in ClO4- removal. The activation energy (Ea) was determined to be 9.56 kJ/mol.
DOI
10.1016/S1001-0742(09)60323-5
MSU Digital Commons Citation
Xu, Jianhong; Gao, Naiyun; Tang, Yulin; Deng, Yang; and Sui, Minhao, "Perchlorate Removal using Granular Activated Carbon Supported Iron Compounds: Synthesis, Characterization and Reactivity" (2010). Department of Earth and Environmental Studies Faculty Scholarship and Creative Works. 468.
https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/468
Published Citation
Xu, J., Gao, N., Tang, Y., Deng, Y., & Sui, M. (2010). Perchlorate removal using granular activated carbon supported iron compounds: synthesis, characterization and reactivity. Journal of environmental sciences (China), 22(11), 1807–1813. https://doi.org/10.1016/s1001-0742(09)60323-5
