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Detection of Oxyanion Adsorption at the Silica-Aqueous Interface using Total Internal Reflection (TIR)-Raman Spectroscopy

Abstract Details

2014, Master of Science, Ohio State University, Chemistry.
Total internal reflection (TIR)-Raman spectroscopy was used to investigate the adsorption of selenate and selenite oxyanions at the silica-aqueous interface over the pH range 5-7. If adsorption were to occur, the symmetry of the Td selenate oxyanion would be reduced to either that of C3v or C2v corresponding to a monodentate or bidentate binding geometry respectively. This would cause the symmetric stretching mode in the Raman spectrum to split into two or three separate peaks respectively. It was determined that the peak corresponding to the symmetric stretching mode did not split, therefore no adsorption occurred. This provides insight to the potential mobility of selenate in the environment as adsorption to silica would greatly impact mobility through the Earth’s crust.
Heather Allen, PhD (Advisor)
97 p.

Recommended Citations

Citations

  • Finzer, B. M. (2014). Detection of Oxyanion Adsorption at the Silica-Aqueous Interface using Total Internal Reflection (TIR)-Raman Spectroscopy [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417521135

    APA Style (7th edition)

  • Finzer, Brant. Detection of Oxyanion Adsorption at the Silica-Aqueous Interface using Total Internal Reflection (TIR)-Raman Spectroscopy. 2014. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1417521135.

    MLA Style (8th edition)

  • Finzer, Brant. "Detection of Oxyanion Adsorption at the Silica-Aqueous Interface using Total Internal Reflection (TIR)-Raman Spectroscopy." Master's thesis, Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417521135

    Chicago Manual of Style (17th edition)