Recent advances in surface, interface, and environmental geochemistry

摘要：

In the last 40 years, a number of surface-sensitive microscopy, modeling, scattering, and spectroscopy techniques have emerged that allow in-situ characterization of the compositions, nanomorphologies, and electronic/geometric structures of the near-surface regions of minerals in contact with water. Synchrotron-based methods, in particular, are revolutionizing our understanding of the electronic/geometric structures of hydrated mineral surfaces, the nature of the EDL, the structure and mode of attachment of adsorbed cations/anions, and,more generally, factors that affect surface chemical reactivity. Here we review some of the historical developments in interface chemistry and the results of recent synchrotron-based studies of water interacting with mineral surfaces and its effect on the geometric structure of mineral surfaces, as well as adsorbate-surface interactions.We also focus on applications of these methods to environmental geochemistry, which involve determining the speciation, spatial distribution, and association of environmental contaminants and pollutants, including some methods capable of imaging and spectroscopic characterization at 25 nm spatial scales.

作者: G.E.Brown, Jr. D.E.Starr M.Salmeron J.G.Catalano T.H.Yoon K.Benzerara G.Morin G.Ona-Nguema F.Juillot B.Cances F.Farges T.Kendelewicz G.Calas T.P.Trainor K.S.Tanwar A.M.Chaka P.J.Eng S.Yamamoto A.Nilsson H.Bluhm

作者单位: Department of Geological & Environmental Sciences, Stanford University, Stanford, CA, USA;Stanford S Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Chemistry Division, Argonne National Laboratory, Argonne, IL, USA Department of Chemistry, Hanyang University, Seoul, Korea Institut de Minéralogie et de Physique des Milieux Condenses, Université Paris 6- 7, Paris, France Department of Geological & Environmental Sciences, Stanford University, Stanford, CA, USA G.E.Broupe dEtude des Géomatériaux et des Environnements Naturels et Anthropiques, Université de Re Muséum National dHistoire Naturelle, CNRS UMR 7160, Paris, France Department of Chemistry & Biochemistry, University of Alaska, Fairbanks, AK, USA National Institute of Standards & Technology, Gaithersburg, MD, USA Consortium for Advanced Radiation Sources, University of Chicago, Chicago, IL, USA Stanford Synchrotron Radiation Laboratory, SLAC, Menlo Park, CA, USA

会议类型: 国际会议

会议名称: 第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)

会议地点: 昆明

会议语种:英文

页码: 3-12

在线出版日期: 2007-07-31（万方平台首次上网日期，不代表论文的发表时间）