Hydrophobic　four　phenoxyphthalocyanine　zinc　(ZnTPPc)　was　prepared　on　the　surface　of　hydrophilic　ZnO　nanomaterialson　the　indium　tin　oxide　(ITO)　conductive　glasswith　in-situ　synthesis　by　using　DBU　as　liquid　phase　Catalyst.　ZnTPPc　was　cyclized　with　phenoxy　phthalonitrile　as　a　molecular　fragment　and　unsaturated　zinc　ions　with　dumbbellshaped　ZnO(ZnO　ZDs)　surface　as　a　template.　The　structure　of　ZnTPPc　molecule　and　the　characteristics　of　photogenerated　charge　in　ZnTPPc/ZnO　interface　were　confirmed　by　a　variety　of　characterization　methods.　The　photocatalytic　selectivity　of　ZnTPPc/ZnO　for　the　degradation　of　hydrophobic　phenol　(PL)　was　quantitatively　analyzed　by　using　hydrophilic　methylene　blue　(MB),　hydrophobic　(PL)　and　their　mixtures.　The　results　show　that　hydrophobic　ZnTPPc　is　synthesized　by　in-situ　method　on　ZnO　surface,　presenting　a　monomolecular　layer.　The　hydrophobic　PL　was　preferentially　adsorbed　by　ZnTPPc,　and　the　relative　degradation　efficiency　of　PL　is　1.　3　times　as　high　as　that　of　MB　under　visible　light　irradiation.