以活性炭（AC）为原料，利用原子转移自由基聚合法（ATRP）合成了AC-g-PSStNa有机无机杂化材料，并对其进行FT-IR、SEM、XPS表征。以AC-g-PSStNa为载体对辣根过氧化物酶（HRP）进行固定化，比较游离酶和固定化酶的pH稳定性、热稳定性及储存稳定性。结果表明，Ac-g-PSStNa固定化HRP的pH稳定性及热稳定性均强于游离酶，特别是在高温范围内表现出高的催化活性；在碱性环境中固定化酶的活性比游离酶高。可见AC-g-PSStNa复合材料可有效地应用于固定化HRP。

Organic inorganic hybrid AC-g-PSStNa is synthesized by atom transfer radical polymerization method (ATRP) and using activated carbon as raw material.And then it is characterized by FT-IR,SEM,and XPS.The horse radish peroxidase (HRP) enzyme is immobilized on the Ac-g-PSStNa hybrid materials.The immobilized HRP is compared with free HRP on aspects of pH stability,thermal stability and storage stability.The HRP immobilized by Ac-g-PSStNa reveals better pH and thermal stabilities,in particular,it shows higher catalytic activity in the range of high temperature and higher activity in alkaline environment.It illustrates that the Ac-g-PSStNa hybrid material can be effectively used to immobilize HRP.