Hierarchically structured superhydrophilic coatings fabricated by self-assembling raspberry-like silica nanospheres
Hierarchically structured superhydrophilic coatings fabricated by self-assembling raspberry-like silica nanospheres
复制标题
DOI：
10.1016/j.jcis.2007.05.011
复制
发表时间：
2007-10-01
影响因子：
9.9
通讯作者：
He, Junhui
中科院分区：
文献类型：
--
作者：
Liu, Xiangmei;He, Junhui
通过两种不同尺寸的聚电解质和单分散二氧化硅纳米粒子的静电自组装制备了树莓状二氧化硅纳米球，并通过聚电解质逐层组装并随后煅烧制备了其涂层。通过扫描和透射电子显微镜观察覆盆子状二氧化硅纳米球及其涂层的形貌。通过测量这些涂层的水接触角来研究其表面性能，结果表明这种分层结构的涂层具有独特的超亲水和防雾性能。最后详细讨论了其形成机制和性质结构关系。 (C) 2007 Elsevier Inc. 保留所有权利。
Raspberry-like silica nanospheres were prepared by electrostatic self-assembly of polyelectrolytes and monodisperse silica nanoparticles of two different sizes, and their coatings were fabricated via layer-by-layer assembly with polyelectrolytes and following calcination. The morphology of the raspberry-like silica nanospheres and their coatings were observed by scanning and transmission electron microscopies. The surface properties of these coatings were investigated by measuring their water contact angles, and the results showed that such hierarchically structured coatings had unique superhydrophilic and antifogging properties. Finally, the formation mechanism and the property-structure relationship were discussed in details. (C) 2007 Elsevier Inc. All rights reserved.