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Iron hydroxyl phosphate (Fe3(PO4)2(OH)2) microspheres with diameters of several micrometers have been successfully prepared using Fe(NO3)3·9H2O and NaH2PO4·2H2O in a mixed solvent of deionized water and glycerin by a facile one-step solvothermal method. The crystal phase of the product changes from poorly crystallized FePO4·2H2O nanoparticles into well-crystallized Fe3(PO4)2(OH)2 microspheres as the amount of glycerin increases. The as-prepared Fe3(PO4)2(OH)2 microspheres can transform into FePO4 through thermal treatment at 800°C in air. The cytotoxicity tests show that the as-prepared Fe3(PO4)2(OH)2 microspheres have good biocompatibility. We expect that the as-prepared Fe3(PO4)2(OH)2 microspheres are promising for the applications in various fields.
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
University of Chinese Academy of Sciences, Beijing 100049, PR China
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
University of Chinese Academy of Sciences, Beijing 100049, PR China
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China