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Photocatalytically Stable Superhydrophobic and Translucent Coatings Generated from PDMS-Grafted-SiO2/TiO2@PDMS with Multiple Applications
Peng, Shan1; Meng, Weihua1; Guo, JunXiang2; Wang, Bo1; Wang, Zhenguang1; Xu, Na1; Li, Xiaolin1; Wang, Jian1; Xu, Jianzhong1
刊名LANGMUIR
2019-02-19
卷号35期号:7页码:2760-2771
ISSN号0743-7463
DOI10.1021/acs.langmuir.8b04247
英文摘要In this paper, we present a highly efficient, cost-effective, and widely applicable functionalized SiO2/TiO2-polymer based coating to fabricate a translucent, fluorine-free, chemically stable, photocatalytic active, self healable superhydrophobic coating, which consisted of two mixed functionalized particles (MFP) and polydimethylsiloxane (PDMS) in a proper ratio. Both SiO2 and TiO2 powders were functionalized with PDMS brushes to achieve superhydrophobicity. To maximally optimize its properties, including superhydrophobicity, transparency, and photocatalytic activity, the ratios between MFP with PDMS were carefully studied and optimized. Glass slides coated with this mixed coating (MC) showed translucence with a transparency of 75%. It also presented superior photocatalytic activity and strong UV resistance that could repeatedly degrade organic oil pollutants as many as 50 times, while still maintaining superhydrophobicity even upon exposure to UV light with a high intensity of 80 mW/cm(2) for as long as 36 h. When low-surface-tension oils such as dodecane wetted the MC surface, it showed excellent slippery performance and could quickly repel strong acid/alkali/hot water and even very corrosive liquids such as aqua regia. MC achieved extremely stable underoil superhydrophobicity (toward liquids including water, strong acid and base, hot water, etc.) and self-cleaning properties, not only in oils at room temperature but also in a scalded oil environment. Moreover, MC showed self-healable performance after recycled plasma treatment. The stainless steel mesh coated with MC was also used to highly efficiently separate oil-water mixtures. Moreover, harsher liquids including strong acid/alkali solutions/hot water/ice water-oil mixtures could also be successfully separated by the coated mesh. This coating was believed to largely broaden both indoor and outdoor applications for superhydrophobic surfaces.
资助项目National Natural Science Foundation of Youth Science Fund Project of China[201804030] ; Research Project of "one province one university": Hebei University[801260201238]
WOS关键词HYDROPHOBIC RECOVERY ; SURFACE MODIFICATION ; FACILE FABRICATION ; HIGHLY TRANSPARENT ; COTTON FABRICS ; ROBUST ; WATER ; WETTABILITY ; SEPARATION ; RESISTANT
WOS研究方向Chemistry ; Materials Science
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000459642300032
资助机构National Natural Science Foundation of Youth Science Fund Project of China ; Research Project of "one province one university": Hebei University
内容类型期刊论文
源URL[http://ir.ipe.ac.cn/handle/122111/28069]  
专题中国科学院过程工程研究所
通讯作者Peng, Shan; Xu, Jianzhong
作者单位1.Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Hebei, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Peng, Shan,Meng, Weihua,Guo, JunXiang,et al. Photocatalytically Stable Superhydrophobic and Translucent Coatings Generated from PDMS-Grafted-SiO2/TiO2@PDMS with Multiple Applications[J]. LANGMUIR,2019,35(7):2760-2771.
APA Peng, Shan.,Meng, Weihua.,Guo, JunXiang.,Wang, Bo.,Wang, Zhenguang.,...&Xu, Jianzhong.(2019).Photocatalytically Stable Superhydrophobic and Translucent Coatings Generated from PDMS-Grafted-SiO2/TiO2@PDMS with Multiple Applications.LANGMUIR,35(7),2760-2771.
MLA Peng, Shan,et al."Photocatalytically Stable Superhydrophobic and Translucent Coatings Generated from PDMS-Grafted-SiO2/TiO2@PDMS with Multiple Applications".LANGMUIR 35.7(2019):2760-2771.
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