Extended study on the synthesis of amorphous titanium phosphates with tailored sorption properties

► Amorphous titanium phosphates (TiP) from TiO2-H2SO4-H3PO4-H2O system. ► Compositional aspects: characteristic synthesis zones in relation to Ti(IV) active-, passive- and colloidal forms. ► Structural aspects of TiPs' diversity of functional groups: Ti(OH)2(HPO4), Ti(HPO4)2 and Ti(OH)4. ► Sorption aspects: texture and porosity in relation to TiP sorption properties.