Aqueous Geochemistry

  1. Sorption Processes at Solid-Water Interfaces
    1. Introduction to Sorption
      1. Adsorption vs. Absorption
        1. Physisorption vs. Chemisorption
          1. Importance in Natural Systems
          2. Types of Sorption Mechanisms
            1. Surface Precipitation
              1. Formation of Surface Phases
                1. Conditions for Precipitation
                2. Ion Exchange
                  1. Mechanism of Ion Exchange
                    1. Selectivity Sequences
                      1. Cation Exchange Capacity
                        1. Anion Exchange Capacity
                          1. Factors Affecting Exchange
                          2. Surface Complexation
                            1. Inner-Sphere Complexes
                              1. Outer-Sphere Complexes
                                1. Surface Functional Groups
                                  1. Protonation and Deprotonation
                                2. Sorbent Materials
                                  1. Clay Minerals
                                    1. Structure and Properties
                                      1. Exchange Sites
                                      2. Metal Oxides and Hydroxides
                                        1. Surface Hydroxyl Groups
                                          1. Point of Zero Charge
                                          2. Organic Matter
                                            1. Humic Substances
                                              1. Functional Groups
                                              2. Carbonates
                                                1. Surface Sites
                                              3. Modeling Sorption
                                                1. Sorption Isotherms
                                                  1. Linear Isotherm
                                                    1. Langmuir Isotherm
                                                      1. Freundlich Isotherm
                                                        1. BET Isotherm
                                                        2. Surface Complexation Models
                                                          1. Constant Capacitance Model
                                                            1. Diffuse Layer Model
                                                              1. Triple Layer Model
                                                                1. Charge Distribution Multisite Complexation Model
                                                                  1. Model Parameters and Fitting
                                                                  2. Ion Exchange Models
                                                                    1. Selectivity Coefficients
                                                                      1. Thermodynamic Models
                                                                    2. Factors Affecting Sorption
                                                                      1. pH Effects
                                                                        1. Ionic Strength Effects
                                                                          1. Temperature Effects
                                                                            1. Competing Ions
                                                                              1. Surface Loading
                                                                                1. Kinetic Effects

                                                                              Previous

                                                                              6. Complexation and Speciation

                                                                              Go to top

                                                                              Next

                                                                              8. Geochemistry of Natural Water Systems