氯取代金属酞菁的制备及疏水异相光催化性能研究  

Preparation and Hydrophobic Heterogeneous Photocatalytic Performance of MPcCl16 （M = Cu Ⅱ, Zn Ⅱ ）

作　　者：杨宏伟[1] 阮长城[1] 汪淑廉[1] 方艳芬[1] 黄应平[1] 

机构地区：[1]三峡大学三峡库区生态环境教育部工程研究中心,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2013年第1期96-100,共5页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金(20877048;50979049);湖北省高等学校优秀中青年科技创新团队计划(T200703);三峡大学博士基金(0620120051)

摘　　要：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,ZnⅡ),在可见光(λ≥420nm)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0.64g/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.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.

关 键 词：金属十六氯酞菁 光催化 罗丹明B(RhB) 

分 类 号：O657.3[理学—分析化学]