TEM micrographs of the Fe materials deposited on the kaolinite particles in sediments made with 10 mM FeC13
at pH 9.5: a) rodlike and platelike particles; b) thin film; c) EDX spectrum of the surface of the kaolinite particles corresponds
to circle in (a); and d) EDX spectrum on the surface of the kaolinite particles corresponds to circle in (b).