将具有较高光催化活性的反应型锌酞菁负载到温敏聚合物--聚(N-异丙基丙烯酰胺)水凝胶载体上,制得一种新型的温敏高分子催化剂.研究了酞菁接枝水凝胶的温敏性能,发现其对温度有明显的依赖性和响应性.通过对α-萘酚进行光催化氧化实验,发现其在可见光照射下具有较高的光催化活性,气质分析得到其氧化产物主要是邻苯二甲酸.另外,循环实验表明该催化剂具有较好的稳定性,可重复使用.
A novel polymer catalyst (GE-ZnPc) was prepared by immobilizing highly reactive zinc phthalocyanine onto poly(N-isopropylacrylamide) hydrogel.The photocatalytic activity of GE-ZnPc for the oxidation of α-naphthol was determined by ultra performance liquid chromatography.The result showed that GE-ZnPc exhibited a high photocatalytic activity under the visible light irradiation.Furthermore,the result of gas chromatography-mass spectrometry analysis indicated that the main oxidative product of α-naphthol was phthalic acid.In addition,GE-ZnPc was stable and remained efficient in six test cycles.
参考文献
| [1] | Ferraudi G;Leznoff C C;Lever A B P.Phtalocyanines:Properties and Applications[M].New York:VCH,1989:291. |
| [2] | Durmus M;Ahsen V;Nyokong T .Photophysical and photochemical studies of long chain-substituted zinc phthalocyanines[J].Journal of Photochemistry and Photobiology, A. Chemistry,2007(2/3):323-329. |
| [3] | Idowu M;Nyokong T .Photophysical and photochemical properties of zinc and aluminum phthalocyanines in the presence of magnetic fluid[J].Journal of Photochemistry and Photobiology, A. Chemistry,2007(2/3):200-206. |
| [4] | Tau P;Nyokong T .Comparative photocatalytic efficiency of oxotitanium(IV) phthalocyanines for the oxidation of 1-hexene[J].Journal of molecular catalysis, A. Chemical,2007(1/2):149-155. |
| [5] | Carlos A.Suchetti;Edgardo N.Durantini .Monomerization and photodynamic activity of Zn(II) tetraalkyltetrapyridinoporphyrazinium derivatives in AOT reverse micelles[J].Dyes and Pigments,2007(3):630-635. |
| [6] | 王国建.功能高分子材料[M].上海:华东理工大学出版社,2006:17-18. |
| [7] | Yang H.;Yan XH.;Cheng RS. .Single-chain-particles of poly(N-isopropylacrylamide)[J].Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation,2002(17):1037-1040. |
| [8] | Koga S;Sasaki S;Maeda H .[J].Journal of Physical Chemistry B,2001,105(19):4105-4110. |
| [9] | Chen G H;Hoffman A S .[J].NATURE,1995,373(6509):49-52. |
| [10] | Park TG .Temperature modulated protein release from pH/temperature-sensitive hydrogels.[J].Biomaterials,1999(6):517-521. |
| [11] | Sassi AP.;Han SM.;Blanch HW.;Prausnitz JM.;Shaw AJ. .PARTITIONING OF PROTEINS AND SMALL BIOMOLECULES IN TEMPERATURE- AND PH-SENSITIVE HYDROGELS[J].Polymer: The International Journal for the Science and Technology of Polymers,1996(11):2151-2164. |
| [12] | Hirokawu Y;Tanaka T .[J].Journal of Chemical Physics,1984,81(12):6397-6380. |
| [13] | Fujlshige S;Kulmta K;Ando I .[J].Journal of Physical Chemistry,1989,93(08):3311-3313. |
| [14] | Wu C;Zhou S Q .[J].Macromolecules,1995,28(24):8381-8387. |
| [15] | Chen W X;Chen S L;L(U) S S et al.[J].Science in China(Series B),2007,50(03):379-384. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%