Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
An in situ ATR-FTIR investigation of adsorption and orientation of heptyl xanthate at the lead sulphide/aqueous solution interface
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriell miljö- och processteknik.ORCID-id: 0000-0001-9794-8305
2008 (engelsk)Inngår i: Minerals Engineering, ISSN 0892-6875, E-ISSN 1872-9444, Vol. 21, nr 12-14, s. 1000-1004Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A lead sulphide film precipitated on a zinc sulphide layer of an ATR crystal has been used to study in situ surface reactions of heptyl xanthate adsorption. The lead sulphide film was made by the chemical bath deposition method and was analyzed by X-ray photoelectron spectroscopy. In turn deposited layers make it possible to study the PbS/aqueous solution interface in situ and open up interesting areas for attenuated total reflection spectroscopy. Monitoring the adsorption of heptyl xanthate from a 0.1 mM aqueous solution using the vibration band at 1200 cm-1 has shown the existence of adsorbed molecules on the lead sulphide surface as well as precipitated lead xanthate on the surface at bulk concentrations higher than 1 mM. At lower concentrations, the adsorbed species are dominant as is the precipitate at higher concentrations. The rate of adsorption is in accordance with pseudo first-order kinetics with a rate constant of 0.21 s-1. The Dichroic ratio for heptyl xanthate adsorbed on PbS indicates the hydrocarbon chain of the heptyl xanthate to be preferentially orientated perpendicular to the surface normal of the internal reflection element.

sted, utgiver, år, opplag, sider
2008. Vol. 21, nr 12-14, s. 1000-1004
HSV kategori
Forskningsprogram
Gränsytors kemi
Identifikatorer
URN: urn:nbn:se:ltu:diva-2474DOI: 10.1016/j.mineng.2008.04.004ISI: 000260746800031Scopus ID: 2-s2.0-52949107966Lokal ID: 01801c00-736f-11dd-a60f-000ea68e967bOAI: oai:DiVA.org:ltu-2474DiVA, id: diva2:975326
Merknad
Validerad; 2008; Bibliografisk uppgift: Selected Papers from Flotation ’07; 20080826 (ysko)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Fredriksson, AndreasHolmgren, Allan

Søk i DiVA

Av forfatter/redaktør
Fredriksson, AndreasHolmgren, Allan
Av organisasjonen
I samme tidsskrift
Minerals Engineering

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 22 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf