Abstract: In this paper, we report molecularly imprinted TiO2 inorganic film (MITiO2) and PVDF/TiO2 composite film (MIPTiO2) as sensors for the detection of parathion methyl (PTM), a simulant of chemical threat agent (CTA) using quartz crystal microbalance (QCM). PTM was used as a molecular template for the imprinting of the sensor film. The MITiO2 showed a greater response (Δ f 19 Hz) to 9.88 mM of PTM than that (Δ f 2 Hz) of the MIPTiO2. The ratios of TiO2/template and PVDF/TiO2/template were optimized. Time for the UV degradation of the template was also optimized. MITiO2 sensor shows good potential for the detection of CTA, other chemical and biochemical pollutants.
Template and target information: parathion methyl, PTM, chemical threat agent, CTA
Author keywords: molecularly imprinted polymer, quartz crystal microbalance, sensor, TIO2, parathion methyl