This paper described a strategy of photodepositing growth of Prussian blue ( PB) nanoparticles coating on the surface of polystyrene (PS) sphere. In this way,the PS beads were first coated with poly-(diallyldimethylammonium chloride) (PD-DA) and a photodeposition process followed. The influence of polyelectrolyte and illumination time on the formation of PB was studied by scanning electronic microscopy. The structure of deposited PB was analyzed with X-ray diffraction spectra. The construction of H202 sensor based on the composite materials was investigated. The sensor showed two linear region that range from 5 × 10-6 to 3. 6× 10-3 mol · L-1 and from 4. 5 × 10-3 to 1 × 10-2 M.%采用一步光照法合成普鲁士蓝/聚苯乙烯微球核壳结构复合材料.利用聚氯化二烷基二甲基铵阳离子吸附到聚苯乙烯微球表面,采用光沉积的方法在其表面合成一层普鲁士蓝外壳.聚电解质和光照时间对该复合材料的合成有着重要的影响.采用扫描电子显微镜、X-射线衍射和X-射线光电子能谱,对该复合材料的结构和形貌进行了分析.该复合材料对H2O2显示出良好的电催化性能,利用该复合材料制备的H2 O2传感器对H2O2的检测具有较宽的线性检测范围、高的灵敏度和稳定性.在5×10-6～3.6×10-3 mol·L-1范围内对过氧化氢的灵敏度为2.6×10-2 A·cm-2·M-1,在4.5× 10-3～1×10-2 M范围内对过氧化氢的灵敏度为8.5×10-3 A·cm-2· M-1.
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