For example, as previously mentioned, ZrP has been intensively studied to be included in an electrolyte for PEMFCs , . In addition, ZrP derivatives have been intensively studied as an application of catalysts , , and targeted ion removal , . Furthermore, the antimicrobial effect of ZrP derivatives is studied , and also ZrP derivatives are considered to be support materials for solid-supported amines (SSAs) . The membrane shape greatly benefits maximizing the properties of ZrP derivatives. Several methods of preparing ZrP membranes have been tried , and it turned out to be difficult to make membranes highly filled with ZrP , . However, in this study, it was proved that not only ZrP but also ZrATMP/ZrHEDP were highly filled in the substrates in the same method and more, with the phase-separated structure. The proposed method could be a platform for the fabrication of membranes containing various ZrP-based inorganic particles with diverse functions.