1 Introduction ................................................. 1
2 Background and principles .................................... 4
2.1 Nanoparticles in water treatment ........................ 4
2.1.1 Size-dependent properties ........................ 5
2.1.2 Nanoparticle synthesis ........................... 6
2.1.3 Influence of mass-transfer on overall reaction
rates ............................................ 6
2.2 Chemical oxidation processes for groundwater and
wastewater treatment .................................... 9
2.2.1 ISCO with potassium permanganate ................. 9
2.2.2 ISCO with stabilized KMnO4 ...................... 10
2.2.3 Oxidation with Fenton reagents .................. 11
2.2.4 Nanostructured catalysts in heterogeneous
Fenton systems .................................. 13
2.3 Isotope fractionation studies .......................... 16
2.4 Aims and scope of the present thesis ................... 18
3 Overview of the following manuscripts ....................... 25
4 Stabilization of potassium permanganate particles with
manganese dioxide ........................................... 27
5 Nano-sized magnetic iron oxides as catalysts for
heterogeneous Fenton-like reactions: Influence of Fe(II)/
Fe(III) ratio on catalytic performance ...................... 44
6 LaFeO3 and BiFeO3 perovskites as nanocatalysts for
contaminant degradation in heterogeneous Fenton-like
reaction .................................................... 70
7 Critical evaluation of the 2D-CSIA scheme for
distinguishing fuel oxygenate degradation reaction
mechanisms .................................................. 99
8 Summary/Zusammenfassung .................................... 136
Bibliography .................................................. 144
Acknowledgments ............................................... 161
Curriculum vitae .............................................. 162
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