Recent developments of surface complexation models applied to environmental aquatic chemistry

Article type: Research Article

Authors: Liu, Wen-Xin | Tang, Hong-xiao

Affiliations: SKLEAC, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. E-mail:[email protected]

Abstract: Based on numerous latest references, the current developments in surface complexation, surface precipitation and the corresponding models (SCMs and SPMs), were reviewed. The contents involved comparison on surface charge composition and layer-structure of solid-solution interface for the classical 1-pK and 2- pK models, In addition, the fundamental concept and relations of the new models, i.e., multi-site complexation (MUSIC) and charge -distribution (CD) MUSIC models were described as well. To avoid misuse or abuse, it must be emphasized that the applicability nd limitation for each model should be considered carefully when selecting the concerned model(s). In addition, some new powerful techniques for surface characterization and analysis applied to model establishment and modification were also briefly introduced.

Keywords: surface complexation models, geochemical circulation, environmental aquatic chemistry

Journal: Journal of Environmental Sciences, vol. 13, no. 4, pp. 422-434, 2001