| Cataluminescence with low-cost, fast response, good reproducibile, no background nature and have a good linear relation with reactant, have attracted continued widespread attention nowadays. Hydrotalcite nanomaterials are a series of solid base catalysts with highly adjustable active base site. In this paper, the study of hydrotalcite-assisted cataluminescence was carried out, and the cataluminescence analysis area is expanded. In addition, layered double hydroxide supported gold nanoparticles, as a perfect cataluminescence sensing material, was prepared. Thus, a low temperature acetaldehyde cataluminescence sensor with high selectivity and good sensitivity was successfully developed.(1) A cataluminescence method was proposed for sensing mesityl oxide generated in aldol condensation of acetone. The content of mesityl oxide was rapidly and effectively identified by the proposed CTL probe in different reaction conditions (i.e., different reaction temperature, water ratio and different anion-intercalated layered double hydroxides). A good matching between the proposed cataluminescence probes and routine GC/MS measurements was obtained.(2) We successfully developed a low temperature acetaldehyde cataluminescence sensor. Based on layered double hysroxide supported gold nanoparticles, the cataluminescence sensor was high selectivie and good sensitive in detecting acetaldehyde at a relative low temperature. The mechanism of the low temperature acetaldehyde cataluminescence was discussed. Acetaldehyde could be assayed in the range of 1.0-150.0 mM, and the detection limit for acetaldehyde was 0.5 mM. Validation of the proposed approach is checked by determining acetaldehyde in real samples. Moreover, the analytical merits of the present method were evaluated by comparing with the standard method, the results of the proposed cataluminescence method were in good agreement with those obtained by the standard method. |
