Potai Ruttayapon
Division of Chemistry, Faculty of Science, Nakhon Phanom University, Nakhon Phanom 48000, Thailand.
ACS Omega. 2025 Jul 17;10(29):31668-31678. doi: 10.1021/acsomega.5c02608. eCollection 2025 Jul 29.
This research presents a simple approach for synthesizing poly-(PCDA)/Zn/ZnO nanocomposites using the solution-mixing method. The study investigates the influence of alcohol solvents, alcohol ratios, and incubation times on nanocomposite formation. The binary mixtures of water and 10% v/v ethanol and the system of 10% v/v n-propanol yielded nanocomposites with higher absorbances as compared to those reported for the thin-film hydrothermal method. The morphology of the nanocomposite changes from a round shape to sheet-like structures upon increasing the alcohol ratio. Moreover, the critical concentration (C) of the PCDA monomer for synthesizing poly-(PCDA)/Zn/ZnO nanocomposites was determined. The C values decrease to 0.0001 mM for poly-(PCDA)/Zn/ZnO nanocomposites fabricated with 10% v/v ethanol. This value is lower than that of the pure poly-(PCDA) assembly. These findings contribute to a deeper understanding of nanocomposite formation and offer valuable insights into optimizing their synthesis. The nanocomposites exhibit reversible thermochromism and colorimetric responses to different stimuli, suggesting their potential as sensors for detecting chemicals in agricultural products, food, and everyday products.
本研究提出了一种使用溶液混合法合成聚（聚对苯二甲酰对苯二胺）/锌/氧化锌纳米复合材料的简单方法。该研究调查了醇类溶剂、醇比例和孵育时间对纳米复合材料形成的影响。与薄膜水热法报道的相比，水与10%（体积/体积）乙醇的二元混合物以及10%（体积/体积）正丙醇体系产生了具有更高吸光度的纳米复合材料。随着醇比例的增加，纳米复合材料的形态从圆形变为片状结构。此外，还确定了合成聚（聚对苯二甲酰对苯二胺）/锌/氧化锌纳米复合材料的聚对苯二甲酰对苯二胺单体的临界浓度（C）。对于用10%（体积/体积）乙醇制备的聚（聚对苯二甲酰对苯二胺）/锌/氧化锌纳米复合材料，C值降至0.0001 mM。该值低于纯聚（聚对苯二甲酰对苯二胺）组装体的值。这些发现有助于更深入地理解纳米复合材料的形成，并为优化其合成提供有价值的见解。这些纳米复合材料表现出可逆热致变色和对不同刺激的比色响应，表明它们作为检测农产品、食品和日常用品中化学物质的传感器具有潜力。
