Preparation method and application of dye-functionalized flexible up-conversion luminescence solid-phase sensor

The invention is applied to the field of food and environment safety detection, and particularly relates to a preparation method and application of an up-conversion luminescence solid-phase sensor for gas pollution derivative detection. The method comprises the following steps: step 1, preparing up-conversion fluorescent nanoparticles; step 2, preparing an up-conversion nanoparticle doped solid phase sensor; step 3, preparing an up-conversion luminescence solid-phase sensor with dye functionalization; based on the prepared solid phase sensor, gas pollution derivative detection is realized; according to the present invention, the gas derivative detection method is established through the preparation of the up-conversion luminescence solid phase sensor, such that the rapid and efficient detection of the gas derivative in food and environmental samples is achieved, and the wide concentration detection range and the low detection limit are provided; meanwhile, the solid-phase sensor has a renewable function and h