Intercalation of aromatic sulfonates in ‘green rust’ via ion exchange

Publikation: Bidrag til tidsskriftKonferenceartikelfagfællebedømt

Dokumenter

'Green rust' intercalated with aromatic sulfonates can potentially be effective materials for the treatment of soil and groundwater polluted with chlorinated benzenes. We investigated the potential intercalation of benzene sulfonate (BzS) and 1,3-benzene disulfonate (BzDS) into green rust sulfate (GR SO4 ) via ion exchange. The GR SO4 reacted with various concentrations of sulfonates were characterized by X-ray diffraction, X-ray scattering and transmission electron microscopy. GR interacted with BzDS did not result in intercalation due to stearic hindrance and electrostatic repulsion. For BzS, mixtures of GR SO4 and GR-BzS (d 001 = 14.3 Å) were obtained at molar equivalents of ion exchange capacity >5. The intercalation of BzS in the GR structure is limited (~18% intercalation) since BzS cannot fully replace SO 4 2- . The BzS molecules are likely arranged in the interlayer as a dehydrated monolayer with the -SO 3 groups facing away in alternate directions.

OriginalsprogEngelsk
TidsskriftEnergy Procedia
Vol/bind146
Sider (fra-til)179-187
Antal sider9
ISSN1876-6102
DOI
StatusUdgivet - 2018
Begivenhed2018 International Carbon Conference, ICC 2018 - Reykjavik, Island
Varighed: 10 sep. 201814 sep. 2018

Konference

Konference2018 International Carbon Conference, ICC 2018
LandIsland
ByReykjavik
Periode10/09/201814/09/2018

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