黄谦,贺小燕,常江凡,杨宗澄,白秀琴.基于超疏水和卤代过氧化物酶活性协同防污的氧化铈纳米涂层研究[J].表面技术,2022,51(5):283-292.
HUANG Qian,HE Xiao-yan,CHANG Jiang-fan,YANG Zong-cheng,BAI Xiu-qin.CeO2 Nanocomposite Coating with Synergistic Antifouling Effects of Superhydrophobicity and Haloperoxidase Activity[J].Surface Technology,2022,51(5):283-292 |
| 基于超疏水和卤代过氧化物酶活性协同防污的氧化铈纳米涂层研究 |
| CeO2 Nanocomposite Coating with Synergistic Antifouling Effects of Superhydrophobicity and Haloperoxidase Activity |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.05.029 |
| 中文关键词: 环氧树脂 纳米氧化铈 超疏水 卤代过氧化物酶 防污性能 |
| 英文关键词:epoxy resin CeO2 nanocomposite superhydrophobic haloperoxidase antifouling performance |
| 基金项目:国家自然科学基金(52071246，52001238);中央高校基本科研业务费专项资金(52001239) |
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| Author | Institution |
| HUANG Qian | Reliability Engineering Institute, National Engineering Research Center for Water Transportation Safety,Wuhan 430063, China ;School of Marine and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China |
| HE Xiao-yan | Reliability Engineering Institute, National Engineering Research Center for Water Transportation Safety,Wuhan 430063, China |
| CHANG Jiang-fan | Reliability Engineering Institute, National Engineering Research Center for Water Transportation Safety,Wuhan 430063, China |
| YANG Zong-cheng | Reliability Engineering Institute, National Engineering Research Center for Water Transportation Safety,Wuhan 430063, China |
| BAI Xiu-qin | Reliability Engineering Institute, National Engineering Research Center for Water Transportation Safety,Wuhan 430063, China |
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| 中文摘要: |
| 目的 将特定防污功能的纳米粒子引入到环氧复合涂料中，制备具有超疏水和卤代过氧化物酶活性协同防污的氧化铈纳米涂层。方法 以环氧树脂和羟基封端的聚二甲基硅氧烷为基质，球形氧化铈(CeO2)纳米颗粒为填料，采用溶液共混的制备方式，通过空气喷涂法构建氧化铈超疏水纳米涂层。借助X射线衍射仪、扫描电子显微镜、接触角测试仪等设备对涂层进行表征，并以典型海洋污损生物芽孢杆菌和三角褐指藻为研究对象分析涂层的防污性能。结果 当涂层中纳米氧化铈的质量分数为55%时，氧化铈纳米涂层具有超疏水特性，接触角达到153°，接触角滞后低至3°。在防污性能方面，相比于环氧复合涂层，超疏水氧化铈纳米涂层对三角褐指藻和芽孢杆菌的防污率分别为97.5%和97.3%。在存在过氧化氢和溴化铵的条件下，失去疏水性能的氧化铈涂层通过卤代过氧化物酶的活性减少了96.2%的三角褐指藻和96.8%的芽孢杆菌贴附。结论 该体系所构建的纳米涂层在初期可以利用其超疏水性能防污，后期利用其卤代过氧化物酶的活性防污，实现防污的长效性。 |
| 英文摘要: |
| In order to introduce nanoparticles with specific antifouling function into epoxy composite coatings, ceria nano coatings with superhydrophobic and haloperoxidase activity were prepared. Using epoxy resin and hydroxyl terminated polydimethylsiloxane as matrix and spherical ceria (CeO2) nanoparticles as filler, the ceria superhydrophobic nano coating was constructed by air spraying method by solution blending. The coating was characterized by X-ray diffraction, scanning electron microscope and contact angle tester, and the antifouling performance of the coating was analyzed by taking typical marine fouling organisms Bacillus and Phaeodactylum tricornutum as the research objects. When the content of CeO2 nanocomposite in coating was 55%, the ceria nano coating has superhydrophobic characteristics, the contact angle reaches 153°, and the contact angle lag was as low as 3°. In terms of antifouling performance, compared with epoxy composite coating, the antifouling rates of superhydrophobic ceria nano coating on Phaeodactylum tricornutum and Bacillus were 97.5% and 97.3% respectively. In the presence of hydrogen peroxide and ammonium bromide, the hydrophobic ceria coating reduced the adhesion of Phaeodactylum tricornutum and Bacillus by 96.2% through the activity of haloperoxidase. The nano coating constructed by the system can use its superhydrophobic performance to prevent pollution in the initial stage, and use its halogenated peroxidase activity to prevent pollution in the later stage, so as to realize the long-term effect of anti pollution. |
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