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=CuⅡ,Zn Ⅱ),在可见光(λ≥420 nm)的照射下以有机染料罗丹明B(Rhodamine B,RhB)和2,4-二氯苯酚(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CuPcCl16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0.64 g/L.通过紫外可见光谱(UV-Vis)的测定分析,可见光照300 min后,CuPcCl16和ZnPcCl16使RhB降解率分别达到84％和89％；光照540 min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.%Two kinds of perchlorinated metallophthalocyanines MPcCl16 (M = CuⅡ , ZnⅡ ) 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 ZnPcCl16 after 540 min are 72% and 40%, respectively. Moreover, the cycling stability of CuPcCl16 and Zn-PcCl16 is excellent.
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