Surfactant-assisted ZnO processing as a versatile route to ZIF composites and hollow architectures with enhanced dye adsorption

Surfactant-assisted surface passivation of ZnO allows the preparation of ZnO@ZIF-8 core–shell composites with high selectivity for rhodamine B separation and full retention of template morphology. The oxide cores can be etched to access a range of hollow or yolk–shell structures.