Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning
A hierarchical micro-/nanostructure, consisting of nano-sized Fe2O3 needles vertically grown on the {1 1 1} facets of micro-octahedral Fe3O4 particles, has been successfully prepared on the surface of N80 steel using hydrothermal treatment followed by annealing. The nanoneedles were transformed from...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/155828 |
| _version_ | 1826117531566342144 |
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| author | He, Shijun Shi, Jiakun Huang, Jianying Hu, Jun Lai, Yuekun Chen, Zhong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering He, Shijun Shi, Jiakun Huang, Jianying Hu, Jun Lai, Yuekun Chen, Zhong |
| author_sort | He, Shijun |
| collection | NTU |
| description | A hierarchical micro-/nanostructure, consisting of nano-sized Fe2O3 needles vertically grown on the {1 1 1} facets of micro-octahedral Fe3O4 particles, has been successfully prepared on the surface of N80 steel using hydrothermal treatment followed by annealing. The nanoneedles were transformed from nanoparticles on the micro-octahedral facets under the influence of mixed acetone and acetic acid gas atmosphere, and the length of nanoneedles can be controlled by the annealing time. The superhydrophobic Fe2O3/Fe3O4 composite surface with water contact angle (WCA) of 157.3° and sliding angle (SA) of 8.1° was obtained after decorated with stearic acid. The influence of the annealing time on the surface morphology and hydrophobicity was explored and optimized. The superhydrophobic surface displays great self-cleaning and anti-corrosion performances with good mechanical robustness. This method opens a new venue towards preparing micro-nanostructures on the surface of metallic materials for enhanced anti-corrosion and self-cleaning applications. |
| first_indexed | 2024-10-01T04:28:49Z |
| format | Journal Article |
| id | ntu-10356/155828 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:28:49Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1558282023-07-14T16:04:09Z Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning He, Shijun Shi, Jiakun Huang, Jianying Hu, Jun Lai, Yuekun Chen, Zhong School of Materials Science and Engineering Engineering::Materials Steel Superhydrophobic Coating A hierarchical micro-/nanostructure, consisting of nano-sized Fe2O3 needles vertically grown on the {1 1 1} facets of micro-octahedral Fe3O4 particles, has been successfully prepared on the surface of N80 steel using hydrothermal treatment followed by annealing. The nanoneedles were transformed from nanoparticles on the micro-octahedral facets under the influence of mixed acetone and acetic acid gas atmosphere, and the length of nanoneedles can be controlled by the annealing time. The superhydrophobic Fe2O3/Fe3O4 composite surface with water contact angle (WCA) of 157.3° and sliding angle (SA) of 8.1° was obtained after decorated with stearic acid. The influence of the annealing time on the surface morphology and hydrophobicity was explored and optimized. The superhydrophobic surface displays great self-cleaning and anti-corrosion performances with good mechanical robustness. This method opens a new venue towards preparing micro-nanostructures on the surface of metallic materials for enhanced anti-corrosion and self-cleaning applications. Agency for Science, Technology and Research (A*STAR) Submitted/Accepted version Financial support from the National Natural Science Foundation of China, China (No. 21676216, 51972063, 22075046 and 51502185), National Natural Science Foundation of Shaanxi, China (2019JM-294), Special project of Shaanxi Provincial Education Department, China (20JC034) and the Agency for Science, Technology and Research (A*STAR) of Singapore, Singapore (SERC 1528000048) are gratefully acknowledged. 2022-03-24T05:23:56Z 2022-03-24T05:23:56Z 2021 Journal Article He, S., Shi, J., Huang, J., Hu, J., Lai, Y. & Chen, Z. (2021). Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning. Chemical Engineering Journal, 416, 127768-. https://dx.doi.org/10.1016/j.cej.2020.127768 1385-8947 https://hdl.handle.net/10356/155828 10.1016/j.cej.2020.127768 2-s2.0-85097061410 416 127768 en SERC 1528000048 Chemical Engineering Journal © 2020 Elsevier B.V. All rights reserved. This paper was published in Chemical Engineering Journal and is made available with permission of Elsevier B.V. application/pdf |
| spellingShingle | Engineering::Materials Steel Superhydrophobic Coating He, Shijun Shi, Jiakun Huang, Jianying Hu, Jun Lai, Yuekun Chen, Zhong Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning |
| title | Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning |
| title_full | Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning |
| title_fullStr | Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning |
| title_full_unstemmed | Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning |
| title_short | Rational designed structured superhydrophobic iron oxide surface towards sustainable anti-corrosion and self-cleaning |
| title_sort | rational designed structured superhydrophobic iron oxide surface towards sustainable anti corrosion and self cleaning |
| topic | Engineering::Materials Steel Superhydrophobic Coating |
| url | https://hdl.handle.net/10356/155828 |
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