Chang Jinghui, Zang Linlin, Wang Cheng, Sun Liguo, Chang Qing
Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province, School of Chemical Engineering and Materials, Heilongjiang University, Harbin, 150080, China.
School of Electrical Engineering, Heilongjiang University, Harbin, 150080, China.
Nanoscale Res Lett. 2016 Dec;11(1):114. doi: 10.1186/s11671-016-1325-9. Epub 2016 Feb 29.
Superhydrophobic particulate films were fabricated via deposition of raspberry-like fluorescent PS/CdTe/silica microspheres on clean glass substrates and surface modification. Particularly, the fluorescent microspheres were prepared by a kind of modified strategy, namely introducing poly (acrylic acid)-functionalized polystyrene microspheres and thiol-stabilized CdTe quantum dots into a hydrolysis reaction of tetraethoxysilane simultaneously. And through adjusting the reaction parameters, the polystyrene spheres with two particle sizes and three colors of CdTe quantum dots aqueous solution were obtained. Consequently, raspberry-like microspheres consist of polystyrene cores and the composite shells of CdTe quantum dots and silica. These microspheres possess a fluorescent characteristic and form a hierarchical dual roughness which was conductive to superhydrophobicity, and the hydrophobic tests also showed the contact angles of water droplets on the surface of the raspberry-like microspheres which were over 160° at room temperature.
通过将树莓状荧光聚苯乙烯/碲化镉/二氧化硅微球沉积在干净的玻璃基板上并进行表面改性，制备了超疏水颗粒膜。具体而言，荧光微球是通过一种改进策略制备的，即将聚（丙烯酸）功能化的聚苯乙烯微球和硫醇稳定的碲化镉量子点同时引入到四乙氧基硅烷的水解反应中。通过调节反应参数，获得了两种粒径的聚苯乙烯球和三种颜色的碲化镉量子点水溶液。因此，树莓状微球由聚苯乙烯核以及碲化镉量子点和二氧化硅的复合壳组成。这些微球具有荧光特性，并形成了有利于超疏水性的分级双重粗糙度，疏水测试还表明，室温下，水滴在树莓状微球表面的接触角超过160°。
