目前，国内外酚类环境激素的研究主要集中在水体、淤泥等环境方面，而对食品中酚类环境激素的研究还很少涉及。而基于纳米复合材料的电化学传感器凭借操作简单、灵敏、快速、易携带、在线等优点，已在生物医药、食品科学、环境检测等领域获得重要且广泛的应用。本研究首先合成贵(过渡)金属掺杂或复合的g-C3N4纳米材料，并构建系列电化学传感器。然后考查双酚A、己烯雌酚等酚类环境激素分子在不同电化学传感平台上的电催化行为，阐明其电催化行为与催化剂的化学组成和结构(如尺寸、形貌、比表面积、晶面等)之间的本质联系。运用各种电化学方法、电化学-光谱联用技术、旋转圆环圆盘电极及量化的计算进一步研究和探讨酚类环境激素的电催化反应机理。同时，利用该纳米复合材料优良的物理、化学特性，构建一系列具有选择性好、灵敏度高、重现性好、成本低、寿命长的酚类环境激素新型无酶电化学传感器，从而建立食品中酚类环境激素残留检测的新方法。

At present, researchers mainly focused on the phenolic environmental hormone in water and silt at home and abroad, and there are few studies on the phenolic environmental hormone in food. Electrochemical biosensors based on nanocomposites have valuable and extensive applications in biological medicine, food science, environmental monitoring and other fields because of its easy operation, high sensitivity, fast response, continuous on-line detection et al. In this work, firstly, noble (transition) metal/g-C3N4 nanocomposites were prepared and a series of electrochemical sensors were constructed. The electrochemical catalytic behaviors of phenolic environmental hormones (such as bisphenol A and diethylstilbestrol) were investigated at different electrochemical sensing platforms. The internal connection among the electrochemical catalytic behaviors of phenolic environmental hormones, chemical composition and configuration (such as size, morphology, specific surface area, crystal surface structure) of catalysts was clarified. The electrochemical catalytic reaction mechanisms of phenolic environmental hormones were further investigated and discussed by different electrochemical techniques, electrochemical-spectrometric hyphenated techniques, rotating ring-disk electrodes and mathematical calculation. At the same time, A series of electrochemical sensors of phenolic environmental hormones with good selectivity, high sensitivity, good reproducibility, low cost, long service life were constructed based on the noble (transition) metal/g-C3N4 nano-composites with excellent physical and chemical properties. A novel method for determination of phenolic environmental hormone residues will be developed in food.