Preparation of copper-substituted Prussian blue analogue immobilized membrane suitable for efficient Cs removal in complicated geothermal water

A copper-substituted PBA composite membrane (M Cu-PBA-TA ) was optimized with a maximum adsorption capacity of 265.0 mg g −1 and a high K d of 8680 mL g −1 in geothermal water, exhibiting benign reusability in dynamic re-adsorption tests.