锌酞菁接枝温敏水凝胶的制备及光活性

Preparation and photoactivity of zinc phthalocyanine grafted thermosensitive hydrogel

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.