title: Probing environmentally significant surface radicals: Crystallographic and temperature dependent adsorption of phenol on ZnO.
abstract: Environmentally persistent free radicals (EPFRs) are toxic organic/metal oxide composite particles that have been discovered to form from substituted benzenes chemisorbed to metal oxides. Here, we perform photoelectron spectroscopy, electron energy loss spectroscopy, and low energy electron diffraction of phenol chemisorbed to ZnO(1 0 1̱ 0) and (0 0 0 1̱)-Zn to observe electronic structure changes and charge transfer as a function adsorption temperature. We show direct evidence of charge transfer from the ZnO surfaces to the phenol. This evidence can help gain a better understanding of EPFRs and be used to develop possible future remediation strategies.
authors.affiliation: Louisiana State University, Department of Chemistry, 232 Choppin Hall, Highland Road, Baton Rouge, LA 70803, United States.
authors.forename: Chad A
authors.initials: CA
authors.lastname: Thibodeaux
authors.affiliation: Louisiana State University, Department of Chemistry, 232 Choppin Hall, Highland Road, Baton Rouge, LA 70803, United States.
authors.forename: E D
authors.initials: ED
authors.lastname: Poliakoff
authors.affiliation: Louisiana State University, Center for Advanced Microstructures and Devices, 6980 Jefferson Hwy., Baton Rouge, LA 70806, United States.
authors.forename: Orhan
authors.initials: O
authors.lastname: Kizilkaya
authors.affiliation: Louisiana State University, Department of Physics and Astronomy, 202 Nicholson Hall, Tower Dr., Baton Rouge, LA 70803, United States.
authors.forename: Matthew C
authors.initials: MC
authors.lastname: Patterson
authors.affiliation: Louisiana State University, Department of Physics and Astronomy, 202 Nicholson Hall, Tower Dr., Baton Rouge, LA 70803, United States.
authors.forename: Mark F
authors.initials: MF
authors.lastname: DiTusa
authors.affiliation: Louisiana State University, Center for Advanced Microstructures and Devices, 6980 Jefferson Hwy., Baton Rouge, LA 70806, United States ; Louisiana State University, Department of Physics and Astronomy, 202 Nicholson Hall, Tower Dr., Baton Rouge, LA 70803, United States.
authors.forename: Richard L
authors.initials: RL
authors.lastname: Kurtz
authors.affiliation: Louisiana State University, Department of Physics and Astronomy, 202 Nicholson Hall, Tower Dr., Baton Rouge, LA 70803, United States.
authors.forename: P T
authors.initials: PT
authors.lastname: Sprunger