Skip to Main Content
Frequently Asked Questions
Submit an ETD
Global Search Box
Need Help?
Keyword Search
Participating Institutions
Advanced Search
School Logo
Files
File List
KMD Thesis 13.12.16.pdf (2.52 MB)
ETD Abstract Container
Abstract Header
Copper and Nickel Partitioning with Nanoscale Goethite
Author Info
Danner, Kelsey Marie
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=wright1387277606
Abstract Details
Year and Degree
2013, Master of Science (MS), Wright State University, Earth and Environmental Sciences.
Abstract
Goethite is an ideal sorbent for investigations of metal partitioning with iron oxyhydroxides because it is the most abundant iron oxyhydroxide in sediments (Langmuir, 1997; van der Zee et al., 2003), and cations have a strong affinity for goethite (Coughlin and Stone, 1995). Steady-state partitioning of nickel (Ni) and copper (Cu) to nanoscale goethite (a-FeOOH) was investigated experimentally under conditions intended to be representative of those in natural waters. Manipulated conditions included i) sorbent mass, ii) solute metal concentration, iii) reaction time, iv) pH, v) ionic strength (I), and vi) humate concentration (competitive ligand) to examine how these factors influenced the partitioning of Cu and Ni between water and goethite. This work suggests that solute adsorption in natural systems is determined by ambient pH and available competitive ligands. Distribution coefficients widely increased as solution pH was raised above the point of zero net proton charge (PZNPC) of goethite. As humate concentration was increased, a significant decrease in distribution coefficients was observed. Ionic strength had no observed effect on solute adsorption. Increasing reaction time did not increase solute adsorption, which suggests that all possible adsorption occurs within 24 hours of solute introduction. The distribution coefficients for Ni and Cu obtained in this study fall within and above reported ranges for soil/water, suspended matter/water, and sediment/water interfaces. Because KD values from this study are within and above the reported range, goethite may significantly contribute to the adsorption of both Ni and Cu. This study warrants further investigation of metal partitioning to nanoscale goethite within natural surface and pore water to determine its potential significance.
Committee
Chad Hammerschmidt, Ph.D. (Advisor)
Allen Burton, Ph.D. (Committee Member)
David Costello, Ph.D. (Committee Member)
Pages
48 p.
Subject Headings
Environmental Science
Keywords
environmental science
Recommended Citations
Refworks
EndNote
RIS
Mendeley
Citations
Danner, K. M. (2013).
Copper and Nickel Partitioning with Nanoscale Goethite
[Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1387277606
APA Style (7th edition)
Danner, Kelsey.
Copper and Nickel Partitioning with Nanoscale Goethite.
2013. Wright State University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=wright1387277606.
MLA Style (8th edition)
Danner, Kelsey. "Copper and Nickel Partitioning with Nanoscale Goethite." Master's thesis, Wright State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1387277606
Chicago Manual of Style (17th edition)
Abstract Footer
Document number:
wright1387277606
Download Count:
846
Copyright Info
© 2013, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.