在可见光照射下,应用合成的新型仿生光催化剂HMS-FePcS,催化降解孔雀绿模拟废水.考察了温度、光源强度、催化剂用量、过氧化氢用量以及金属活性中心(Fe,Cu和Co)等一系列因素对降解反应的影响,得到了优化的反应条件.在此基础上推导出孔雀绿光催化降解的反应级数及反应速率常数.该降解反应分两个阶段,初始反应的速率与反应物的浓度无关,呈现出零级反应的特征;而后一阶段的反应呈现一级反应的特征.两段反应均可用经典的Langmuir-Hinshelwood多相催化动力学模型进行合理的解释.
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