采用差示扫描量热仪研究了聚(N-异丙基丙烯酰胺)温敏水凝胶负载锌酞菁(GE-ZnPc)的温敏性能,测得其体积相转变温度(VPTT)为34.3℃.以α-萘酚为研究对象,考察了不同温度下GE-ZnPc对α-萘酚的吸附性能,发现该吸附过程符合Freundlich吸附模型.吸附热力学研究结果表明,在VPTT以下是吸热反应,温度升高有利于吸附;在VPTT以上是放热反应,温度升高不利于吸附.另外,还研究了GE-ZnPc对水溶液中α-萘酚的光催化氧化情况,发现其在可见光照射下具有较高的光催化活性,并且考察了温度对GE-ZnPc光催化性能的影响,发现其吸附和光催化活性都是在VPTT附近达到最高,说明吸附作用对其光催化性能的提高起重要作用.
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