Design of Programmable Temperature Platform and its Pyroelectrocatalytic applications

The Si based TiO2 thin films were prepared via the combination both of Sol-Gel and Spin-Coating method. The films were sintered at 850 degrees Celsius for half an hour, and the resulting films were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) for their phase composition and microstructure. It was found that the films contained silicon, anatase phase, and unknown impurities. There were holes and micro-cracks on the surface of TiO2 films. A program-controllable hot-cold test chamber was successfully developed and used to study the catalytic performance of the thin film for the first time. The results showed that TiO2 thin films had the ability to degrade Rhodamine B dyes. The highest degradation rate of Rhodamine B achieved 37% after 48 cold-hot cycles. Our design and the experimental results presented in this paper strongly highlight the bright prospects of the thermoelectric properties of TiO2 and water environmental disinfection applications.