Direct observation of a cooperative mechanism in the adsorption of heavy metal ions to thiolated surface by in-situ surface plasmon resonance measurements.
S-type adsorption kinetics, obtained by surface plasmon resonance spectroscopy measurements, suggest that the rate of Pt2+ adsorption on 1,6-hexanedithiol (HDT) on gold increases until the surface coverage reaches ca. 17%, after which, the adsorption profile of Pt2+ follows Langmuirian behavior for the surface coverage.
Kang
Taewook
T
School of Chemical and Biological Engineering, Seoul National University, San 56-1, Shilim-dong, Kwanak-gu, Seoul, Korea. jyi@snu.ac.kr
Moon
Jungwoo
J
Oh
Seogil
S
Hong
Surin
S
Chah
Soonwoo
S
Yi
Jongheop
J
D000327:Adsorption; D006046:Gold / Q000737:chemistry; D007700:Kinetics; D010984:Platinum / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties; D013997:Time Factors
D013438:Sulfhydryl Compounds; D010984:Platinum; D006046:Gold; C501433:1,6-hexanedithiol