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A Spectroscopic Stu...
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Klug, OttoLuleå tekniska universitet,Evox RIFA AB, Gränna, Sweden
(författare)
A Spectroscopic Study of Phthalate Adsorption on γ-Aluminum Oxide
- Artikel/kapitelEngelska1999
Förlag, utgivningsår, omfång ...
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1999-08-14
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American Chemical Society (ACS),1999
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printrdacarrier
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LIBRIS-ID:oai:DiVA.org:ltu-7389
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https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-7389URI
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https://doi.org/10.1021/la990105jDOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Godkänd; 1999; 20070125 (ysko)
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Surface complexation of phthalic acid/phthalate has been investigated on synthetically produced, nonaged γ-aluminum oxide by infrared and Raman spectroscopy. Effects of time, pH, and ionic strength have been studied both on the total adsorbed amount of phthalate and on the surface complexes. The spectroscopic results indicated the formation of two different types of complexes: outer sphere and inner sphere. The relative concentrations of these complexes were shown to vary considerably with pH but very little with increasing ionic strength, which equally reduced the amount of both types of complexes. Considering the electrostatic interaction between the surface and adsorbate, a complexation model was proposed that is in accordance with the spectroscopic results. Adsorption on the synthetic γ-alumina was compared to the adsorption on γ-aluminum oxide films produced by anodic oxidation, where the adsorbed amount was greatly reduced; however, both inner- and outer-sphere types of complexation have been observed.
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Forsling, WillisLuleå tekniska universitet,Industriell miljö- och processteknik(Swepub:ltu)wifo
(författare)
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Luleå tekniska universitetEvox RIFA AB, Gränna, Sweden
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Langmuir: American Chemical Society (ACS)15:20, s. 6961-69680743-74631520-5827
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Langmuir
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