TY - JOUR
T1 - Phototunable underwater oil adhesion of micro/nanoscale hierarchical-structured ZnO mesh films with switchable contact mode
AU - Tian, Dongliang
AU - Guo, Zhenyan
AU - Wang, Yiliang
AU - Li, Wenxian
AU - Zhang, Xiaofang
AU - Zhai, Jin
AU - Jiang, Lei
PY - 2014/1/29
Y1 - 2014/1/29
N2 - Controllable surface adhesion of solid substrates has aroused great interest both in air and underwater in solving many challenging interfacial science problems such as robust antifouling, oil-repellent, and highly efficient oil/water separation materials. Recently, responsive surface adhesion, especially switchable adhesion, under external stimulus in air has been paid more and more attention in fundamental research and industrial applications. However, phototunable underwater oil adhesion is still a challenge. Here, an approach to realize phototunable underwater oil adhesion on aligned ZnO nanorod array-coated films is reported, via a special switchable contact mode between an unstable liquid/gas/solid tri-phase contact mode and stable liquid/liquid/solid tri-phase contact mode. The photo-induced wettability transition to water and air exists (or does not) in the micro/nanoscale hierarchical structure of the mesh films, playing important role in controlling the underwater oil adhesion behavior. This work is promising in the design of novel interfacial materials and functional devices for practical applications such as photo-induced underwater oil manipulation and release, with loss-free oil droplet transportation.
AB - Controllable surface adhesion of solid substrates has aroused great interest both in air and underwater in solving many challenging interfacial science problems such as robust antifouling, oil-repellent, and highly efficient oil/water separation materials. Recently, responsive surface adhesion, especially switchable adhesion, under external stimulus in air has been paid more and more attention in fundamental research and industrial applications. However, phototunable underwater oil adhesion is still a challenge. Here, an approach to realize phototunable underwater oil adhesion on aligned ZnO nanorod array-coated films is reported, via a special switchable contact mode between an unstable liquid/gas/solid tri-phase contact mode and stable liquid/liquid/solid tri-phase contact mode. The photo-induced wettability transition to water and air exists (or does not) in the micro/nanoscale hierarchical structure of the mesh films, playing important role in controlling the underwater oil adhesion behavior. This work is promising in the design of novel interfacial materials and functional devices for practical applications such as photo-induced underwater oil manipulation and release, with loss-free oil droplet transportation.
KW - Hierarchical structures
KW - Oil adhesion
KW - Phototunability
KW - Switchable contact modes
UR - http://www.scopus.com/inward/record.url?scp=84892918176&partnerID=8YFLogxK
U2 - 10.1002/adfm.201301799
DO - 10.1002/adfm.201301799
M3 - Article
AN - SCOPUS:84892918176
VL - 24
SP - 536
EP - 542
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
IS - 4
ER -