CAS OpenIR
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
2019-02-19
Source PublicationLANGMUIR
ISSN0743-7463
Volume35Issue:7Pages:2760-2771
AbstractIn 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.
DOI10.1021/acs.langmuir.8b04247
Language英语
WOS KeywordHYDROPHOBIC RECOVERY ; SURFACE MODIFICATION ; FACILE FABRICATION ; HIGHLY TRANSPARENT ; COTTON FABRICS ; ROBUST ; WATER ; WETTABILITY ; SEPARATION ; RESISTANT
Funding ProjectNational Natural Science Foundation of Youth Science Fund Project of China[201804030] ; Research Project of "one province one university": Hebei University[801260201238]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of Youth Science Fund Project of China ; Research Project of "one province one university": Hebei University
WOS IDWOS:000459642300032
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28070
Collection中国科学院过程工程研究所
Corresponding AuthorPeng, Shan; Xu, Jianzhong
Affiliation1.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
Recommended Citation
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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