Fabrication of patterned solid surfaces with highly controllable wettability

Wang, Meng1; Guo, Chuan Fei2; Wang, Xiaofeng3; Xiang, Bingxi1; Qiu, Mingxia1; He, Tiefeng1; Yang, Huan1; Chen, Yu1; Dong, Jianjie3; Liu, Qian3; Ruan, Shuangchen1

2021-09-28

10.1039/d1ra05675a

RSC ADVANCES   影响因子和分区

2046-2069

Precisely controlling the wettability of a solid surface is vital for a wide range of applications such as control of liquid droplet motion, water collection and the directional transport of fluids. However, fabricating a large-area solid surface with highly controllable wettability in a low-cost way is still challenging. Here we present a cost-effective method to fabricate patterned solid surfaces with highly controllable wettability by combining chemical etching technique, chemical vapor deposition technique and laser direct writing technique. We experimentally demonstrated that the contact angle of water droplets on the patterned surfaces of a porous nanofilm fabricated using the presented fabrication method can be adjusted from 94.4 degrees to 168.2 degrees by changing the duty ratio of the periodic pattern on the patterned surfaces. Furthermore, we experimentally demonstrated that the contact angle of water droplets on the patterned surfaces is almost independent of the shape of the unit cell of the patterns. In addition, we propose an effective surface model to accurately calculate the contact angle of water droplets on patterned solid surfaces. Using the effective surface model, the wettability of a patterned solid surface can be precisely controlled by designing the duty ratio of its periodic patterns.

SCI ; EI

英语

其他

NSFC[61805156] ; Shenzhen Science and Technology Planning[JCYJ20190813103207106] ; National Natural Science Foundation of China[51971070,10974037] ; Guangdong Province University Young Innovative Talents Program[2018KQNCX404] ; Post-doctoral research project of SZTU["W201960002440008",202028555301015]

Chemistry

Chemistry, Multidisciplinary

WOS:000716066700001

ROYAL SOC CHEMISTRY

20214811248980

Chemical vapor deposition ; Contact angle ; Cost effectiveness ; Drops ; Fabrication ; Optical waveguides

Waveguides:714.3 ; Optical Devices and Systems:741.3 ; Chemical Reactions:802.2 ; Industrial Economics:911.2 ; Physical Properties of Gases, Liquids and Solids:931.2

Web of Science

1.Shenzhen Technol Univ, Shenzhen 518118, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Univ Chinese Acad Sci, Chinese Acad Sci CAS, Natl Ctr Nanosci & Technol, CAS Key Lab Nanosyst & Hierarch Fabricat,Ctr Exce, Beijing 100190, Peoples R China

Wang, Meng,Guo, Chuan Fei,Wang, Xiaofeng,et al. Fabrication of patterned solid surfaces with highly controllable wettability[J]. RSC ADVANCES,2021,11(51):31877-31883.

Wang, Meng.,Guo, Chuan Fei.,Wang, Xiaofeng.,Xiang, Bingxi.,Qiu, Mingxia.,...&Ruan, Shuangchen.(2021).Fabrication of patterned solid surfaces with highly controllable wettability.RSC ADVANCES,11(51),31877-31883.

Wang, Meng,et al."Fabrication of patterned solid surfaces with highly controllable wettability".RSC ADVANCES 11.51(2021):31877-31883.