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dc.contributor.authorCole, William T. S.
dc.contributor.authorWei, Haoyun
dc.contributor.authorNguyen, Son C.
dc.contributor.authorHarris, Charles B.
dc.contributor.authorMiller, Daniel J.
dc.contributor.authorSaykally, Richard J.
dc.date.accessioned2021-03-11T11:58:25Z
dc.date.available2021-03-11T11:58:25Z
dc.date.issued2019-05-22
dc.identifier.citationCole, W. T. S., Wei, H., Nguyen, S. C., Harris, C. B., Miller, D. J., & Saykally, R. J. (2019). Dynamics of Micropollutant Adsorption to Polystyrene Surfaces Probed by Angle-Resolved Second Harmonic Scattering. The Journal of Physical Chemistry C, 123(23), 14362–14369. doi:10.1021/acs.jpcc.9b01146
dc.identifier.issn1932-7447
dc.identifier.issn1932-7455
dc.identifier.doi10.1021/acs.jpcc.9b01146
dc.identifier.urihttp://hdl.handle.net/10754/668091
dc.description.abstractAngle-resolved second harmonic scattering is used to probe the adsorption dynamics of aqueous cationic and anionic dye molecules onto polystyrene surfaces. The adsorptions of malachite green to negatively charged polystyrene and naphthol yellow S to positively charged polystyrene are both highly favorable, with Î"GAds values of -10.9 ± 0.2 and -10.27 ± 0.09 kcal/mol, respectively. A competitive displacement methodology was employed to obtain values for the adsorption free energies of various smaller neutral organic molecules, including the important micropollutant ascorbic acid, caffeine, and pentoxifylline. For charged adsorbers, electrostatic interactions appear to significantly contribute to adsorption behavior. However, electrostatic repulsion does not necessarily deter the adsorption of molecules with large uncharged moieties (e.g., surfactants). In these cases, the mechanism of adsorption is dominated by van der Waals interactions, with the surface charge playing a relatively minor role.
dc.description.sponsorshipThis work was supported by the Director, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy (DOE) under contract no. DE-AC02-05CH11231 through the Chemical Sciences Division of the Lawrence Berkeley National Laboratory (LBNL), by the National Natural Science Foundation of China (NSFC) under grant no. 61775114, by KAUST under grant OSR-2016-CRG5-2992, and by CALSOLV (an affiliate of RESOLV) under Fund #56475. of the U.S. Department of Energy under Award Number DE-SC000493.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acs.jpcc.9b01146
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.jpcc.9b01146.
dc.titleDynamics of Micropollutant Adsorption to Polystyrene Surfaces Probed by Angle-Resolved Second Harmonic Scattering
dc.typeArticle
dc.identifier.journalThe Journal of Physical Chemistry C
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Chemistry, University of California, Berkeley, California 94720, United States
dc.contributor.institutionState Key Lab of Precision Measurement Technology & Instrument, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
dc.contributor.institutionDepartment of Chemistry and Chemical Biology, University of California Merced, 5200 North Lake Road, Merced, California 95343, United States
dc.contributor.institutionJoint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
dc.identifier.volume123
dc.identifier.issue23
dc.identifier.pages14362-14369
kaust.grant.numberOSR-2016-CRG5-2992
dc.identifier.eid2-s2.0-85067424785
kaust.acknowledged.supportUnitCRG
kaust.acknowledged.supportUnitOSR


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