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- E-ISSN 2288-8985
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Potassium loading effects for activated carbon fiber pre-treated with phosphoric acid
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.4, pp.355-361
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(2005). Potassium loading effects for activated carbon fiber pre-treated with phosphoric acid. Analytical Science and Technology, 18(4), 355-361.
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Abstract
The objective of this paper is to compare the surface features of two kinds of activated caron fiber (ACF) treated with potassium and the variation of their properties by phosphoric acid pre-treatment. X-ray diffraction (XRD) patterns indicate that activated carbon fiber containing potassium species show better performance for metal and metal salts by pre-treatment with phosphoric acid. In order to present the causes of the differences in surface properties and specific surface area after the samples were treated with phosphoric acid, pore structure and surface morphology were investigated by adsorption analysis and SEM. For the chemical composition microanalysis for potassium leading of the activated carbon fibers pre-treated with phosphoric acid, samples were analyzed by EDX. Finally, the type and quality of oxygen groups were determined from the method proposed by Boehm.
- keywords
- K-ACF, SEM, XRD, EDX, Boehm titration
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