In the view of the high thermal stability of high-silica zeolites, which typically exceeds 1000 °C, thermal regeneration appears as a straightforward option. Beyond that, doping with catalytically active metals could constitute a pathway towards CE decomposition that requires less thermal energy. In such systems, the interplay of adsorption properties (guaranteeing efficient CE capture) and catalytic properties (affording complete CE decomposition) should be optimized in order to maximize the CE removal efficiency.