Effects of Native Organic Material and Water on Sorption Properties of Reference Diesel Soot
作者： Satoshi Endo , Peter Grathwohl , Stefan B. Haderlein , Torsten C. Schmidt
DOI: 10.1021/ES803519A
关键词:
摘要: Soot has been considered as a potentially important sorbent for organic contaminants in soils, sediments, and aerosols. This paper demonstrates that native (authigenic) extractable material (EOM) surface-covering water on soot may have substantial influence sorption properties of the soot. Sorption isotherms were determined apolar weakly polar sorbates (n-octane, cyclooctane, n-propylbenzene, naphthalene) from an aqueous solution to standard reference diesel (SRM 2975) original state after extraction with methanol. For all tested, removal EOM by methanol caused be more nonlinear (decrease Freundlich exponents 0.19−0.25) compared untreated The changes depend both sorbate structure concentration can accounted two opposing roles could soot: (i) enhancing overall absorbing ...
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