氯取代金属酞菁的制备及疏水异相光催化性能研究

以尿素-苯酐法固相反应合成两种疏水性金属十六氯酞菁MPcCl16（M—Cull，Zn），在可见光（A≥420nm）的照射下以有机染料罗丹明B（RhodamineB，RhB）和2，4一二氯苯酚（2，4-DCP）的光催化降解为探针反应，研究了催化剂对有机污染物的光催化降解活性．结果表明，ZnPcCl16和CuPcCl-e均能活化分子氧（O2）使RhB发生有效降解．二者在可见光下最佳降解条件皆为：pH=3．0，催化剂用量为0．64g／L．通过紫外可见光谱（UV—Vis）的测定分析，可见光照300min后，CuPcCl16和ZnPcCl16使RhB降解率分别达到84％和89％；光照540min后，使无色有毒小分子2，4-DCP降解率分别达到72％和40％．同时，这两种催化剂测循环稳定性较好．

Preparation and Hydrophobic Heterogeneous Photocatalytic Performance of MPcCl16（M=CuⅡ,ZnⅡ）

Two kinds of perchlorinated metallophthalocyanines MPcCl16 （M：Cuu , Zn） were synthesized by solid phase urea-phthalic anhydride method and used as photocatalysts. The degradation of Rhodamine B （RhB） and 2, 4-dichlorophenol （2, 4-DCP） were used as probe reaction to investigate the activity of catalysts under visible light （λ≥ 420 nm） irradiation. The experimental results show that both of ZnPcCl16 and CuPcCl16 are able to activate molecular oxygen to degrade RhB and 2, 4-DCP. Under visible light, their optimal degradation conditions are pH 3.0 and catalyst amount 0.64 g/L. The discolourization rates of RhB by CuPcCl16 and ZnPcCl16 after 300 min are 84% and 89%, respectively. The degradation rates of CuPcCl16 and ZnPcC16 after 540 min are 72% and 40%, respectively. Moreover, the cycling stability of CuPcCl16 and Zn- PcCl16 is excellent.