%0 Online Multimedia
%A Zhou, Cailong
%A Li, Huijing
%A Lin, Jing
%A Hou, Kun
%A Yang, Zhijie
%A Pi, Pihui
%A Xu, Shouping
%A Wen, Xiufang
%A Cheng, Jiang
%D 2017
%T Matchstick-Like Cu2S@CuxO
Nanowire Film: Transition of Superhydrophilicity to Superhydrophobicity
%U https://acs.figshare.com/articles/media/Matchstick-Like_Cu_sub_2_sub_S_Cu_sub_i_x_i_sub_O_Nanowire_Film_Transition_of_Superhydrophilicity_to_Superhydrophobicity/5363695
%R 10.1021/acs.jpcc.7b03645.s002
%2 https://acs.figshare.com/ndownloader/files/9218098
%K mixture
%K surface morphology
%K matchstick-like structures
%K superhydrophilic
%K copper mesh
%K contact angle measurement
%K Scanning Electron Microscopy
%K SEM
%K surface chemical composition
%K XRD
%K XPS
%K nanowire
%K chemical composition
%K superhydrophobic
%K Cu
%K X-ray Photoelectron Microscopy
%K wettability transition
%X We
fabricated a matchstick-like Cu2S@CuxO nanowire film on copper mesh by applying a CuÂ(OH)2 nanowires template-sacrificial method, which can transformed
from superhydrophilic to superhydrophobic just after storage in air
for a certain period without any further organic modification. The
surface morphology, chemical composition and the wettability were
investigated by Scanning Electron Microscopy (SEM), X-ray diffractometer
(XRD), Raman, X-ray Photoelectron Microscopy (XPS), and contact angle
measurement. Results showed that the change of surface chemical composition
and the trapped air among the matchstick-like structures were the
decisive factors for the wettability transition. Therefore, on-demand
oil/water separation was achieved, which was performed by using the
superhydrophilic–underwater superoleophobic mesh for separating
light oil/water mixtures and the superhydrophobic one for separating
heavy oil/water mixtures.
%I ACS Publications