中文摘要：

通过静电吸附的方式在金红石相掺钨二氧化钛（Ti0.7W0.3O2）表面组装了铁卟啉（Fe TCPP）大环分子,合成了具有仿生功能的Fe TCPP/Ti0.7W0.3O2纳米复合材料,并将其修饰于玻碳电极上,制备了一种新型的无酶H2O2传感器。利用紫外-可见吸收光谱（UV-Vis）和电化学阻抗谱（EIS）对纳米复合材料进行了表征,并利用循环伏安（CV）法研究了传感器对H2O2的电催化还原性能。结果表明：该传感器对H2O2有良好的电催化效果,在4.998×10-7~1.194×10-5mol/L范围内H2O2的浓度与电流响应呈线性关系（R=0.997）,检测限为1.105×10-8mol/L（S/N=3）。

英文摘要：

A novel hydrogen peroxide sensor without enzyme is developed,it is based on the film of Fe TCPP /Ti0. 7W0. 3O2 nanocomposite material which is prepared by the assembly of Fe TCPP macrocyclic molecules on the doped tungsten titanium dioxide（ Ti0. 7W0. 3O2） surface with rutile phase via electrostatic interactions. The asprepared Fe TCPP / Ti0. 7W0. 3O2 nanocomposite material is characterized by ultraviolet-visible absorption spectroscopy（ UV-Vis） and electrochemicalimpedance spectroscopy（ EIS）. The electrocatalytic H2O2 reduction reaction of the nanocomposite material is studied by cyclic voltammetry（ CV）. It shows that the Fe TCPP / Ti0. 7W0. 3O2 nanocomposite material is prepared for H2O2 sensor based on its excellent electrocatalytic activity for H2O2 reduction. The response current is linear to H2O2 concentration with the concentration range of 4. 998 × 10- 7~1. 194 × 10- 5mol / L（ R = 0. 997）. The detection limit is 1. 105 × 10- 8mol / L（ S / N = 3）.