GaOOH　nanorods　were　synthesized　from　Ga(NO3)(3)　via　a　facile　microwave　hydrothermal　method.　The　obtained　sample　was　characterized　by　x-ray　diffraction,　N-2　sorption-desorption,　UV-vis　diffuse　reflectance　spectroscopy,　transmission　electron　microscopy,　electron　spin　resonance,　and　x-ray　photoelectron　spectroscopy.　The　results　revealed　that　the　as-synthesized　sample　was　consisted　of　rod-like　particles.　It　possessed　a　surface　area　of　14.3　m(2)　g(-1),　and　a　band　gap　of　4.75　eV.　The　photocatalytic　property　of　GaOOH　nanorods　was　evaluated　by　the　degradation　of　aromatic　compounds　(such　as　benzene　and　toluene)　in　an　O-2　gas　stream　under　ultraviolet　(UV)　light　illumination.　The　results　demonstrated　that　GaOOH　nanorods　exhibited　superior　photocatalytic　activity　and　stability　as　compared　to　commercial　TiO2　(P25,　Degussa　Co.)　in　both　benzene　and　toluene　degradation.　In　the　extended　(35　h)　reaction　test　toward　benzene,　GaOOH　maintained　a　high　activity,　and　no　obvious　deactivation　was　observed.　A　possible　mechanism　of　the　photocatalysis　over　GaOOH　is　proposed.