Use of in-situ ATR-FTIR spectroscopy to determine rapid reaction kinetics at the mineral/water interface
Many important chemical processes, such as adsorption and oxidation-reduction, that occur on natural sorbents such as clay minerals, metal hydro (oxides) and soils, are characterized by a rapid initial reaction that can occur on time scales of seconds and minutes and can comprise a significant part of the total reaction process. Such rapid reactions cannot be accurately determined using traditional batch and flow techniques. Knowledge of the initial rates is critical to determine precise rate constants and to elucidate reaction mechanisms. An example of such a rapid reaction is the surface catalyzed oxidation of arsenite via Mn-oxides. Kinetic measurements of reaction rates have previously been limited by experimental techniques that yield relatively few data points during the initial reaction period. In this study, we employed single bounce ATR-FTIR spectroscopy to collect in situ rapid kinetic data on
arsenic Fourier transform infrared spectroscopy manganese oxide redox kinetics
S. J. Parikh B. J. Lafferty, Z. Shi D. L. Sparks
Department of Plant and Soil Sciences, Center for Critical Zone Research, The University of Delaware Department of Plant and Soil Sciences, Center for Critical Zone Research, The University of Delaware Department of Plant and Soil Sciences, Center for Critical Zone Research, The University of Delaware Department of Plant and Soil Sciences, Center for Critical Zone Research, The University of Delaware
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
336-337
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）