Electrospun template directed molecularly imprinted nanofibers incorporated with BiOI nanoflake arrays as photoactive electrode for photoelectrochemical detection of triphenyl phosphate.
Electrospun template directed molecularly imprinted nanofibers incorporated with BiOI nanoflake arrays as photoactive electrode for photoelectrochemical detection of triphenyl phosphate.
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电纺模板定向分子印迹纳米纤维与 BiOI 纳米片阵列结合作为光活性电极，用于磷酸三苯酯的光电化学检测。
DOI：
10.1016/j.bios.2017.01.056
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发表时间：
2017-06
期刊：
影响因子：
--
通讯作者：
龚静鸣
中科院分区：
文献类型：
--
作者：
杨晓敏;李新;张礼知;龚静鸣
磷酸三苯酯(TPHP)作为一种典型的有机磷阻燃剂，已被认为是一种新兴的健康问题环境污染物。本研究以电纺模板分子印迹纳米纤维修饰BiOI纳米片阵列(BiOINF)为光活性电极，研制了一种快速、高灵敏的可见光响应PEC传感器，用于检测磷酸三苯酯(TPHP)。采用扫描电子显微镜、紫外光谱、傅里叶变换红外光谱和多种电化学技术对分子印迹电纺纳米纤维(标记为MI-ESNF)进行了表征。在优化的实验条件下，传感器的光电化学响应与苯酚浓度在0.01ng.mL−-1~500ng.mL−-1范围内呈良好的线性关系。同时，该传感器具有较高的选择性和稳定性。
Triphenyl Phosphate (TPhP), as a typical model of organophosphorus flame retardants (OPFRs), has been regarded as emerging environmental contaminants of health concern. In this study, a rapid and highly sensitive visible-light-response PEC sensor has been developed for the detection of Triphenyl Phosphate (TPhP) using electrospun template directed molecularly imprinted nanofibers modified BiOI nanoflake arrays (BiOINFs) as a photoactive electrode. The molecularly imprinted electrospun nanofibers (labeled as MI-ESNFs) were carefully characterized by scanning electron microscopy (SEM), UV spectra, FTIR spectra measurements and various electrochemical techniques. Under the optimized experimental conditions, the photoelectrochemical response was linearly proportional to the logarithm value of TPhP concentrations in the range of 0.01 ng mL−1to 500 ng mL−1. Meanwhile, the sensor exhibited high selectivity and stability.
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