10.1021/acs.jpcc.7b03645.s005
Cailong Zhou
Cailong
Zhou
Huijing Li
Huijing
Li
Jing Lin
Jing
Lin
Kun Hou
Kun
Hou
Zhijie Yang
Zhijie
Yang
Pihui Pi
Pihui
Pi
Shouping Xu
Shouping
Xu
Xiufang Wen
Xiufang
Wen
Jiang Cheng
Jiang
Cheng
Matchstick-Like Cu<sub>2</sub>S@Cu<sub><i>x</i></sub>O
Nanowire Film: Transition of Superhydrophilicity to Superhydrophobicity
American Chemical Society
2017
mixture
surface morphology
matchstick-like structures
superhydrophilic
copper mesh
contact angle measurement
Scanning Electron Microscopy
SEM
surface chemical composition
XRD
XPS
nanowire
chemical composition
superhydrophobic
Cu
X-ray Photoelectron Microscopy
wettability transition
2017-08-22 00:00:00
Media
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/5363683
We
fabricated a matchstick-like Cu<sub>2</sub>S@Cu<sub><i>x</i></sub>O nanowire film on copper mesh by applying a CuÂ(OH)<sub>2</sub> 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.