Synthesis and Characterization of Anti-fungus, Anti-corrosion and Self-cleaning Hybrid Nanocomposite Coatings Based on Sol–Gel Process
Synthesis and Characterization of Anti-fungus, Anti-corrosion and Self-cleaning Hybrid Nanocomposite Coatings Based on Sol–Gel Process
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DOI：
10.1007/s10904-017-0532-x
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发表时间：
2017-04
影响因子：
4
通讯作者：
Seyed Armin Zare Estekhraji;S. Amiri
中科院分区：
文献类型：
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作者：
Seyed Armin Zare Estekhraji;S. Amiri
通过 FESEM、EDAX 和 TEM 分析研究了基于溶胶凝胶前驱体使用四甲氧基硅烷、3-缩水甘油氧基丙基三甲氧基硅烷、四正丁基原钛酸酯和二水合乙酸锌合成的含有 ZnO-TiO2、SiO2-TiO2 和 SiO2/TiO2/ZnO 纳米颗粒的涂层的防腐、抗真菌和自清洁性能。结果表明，无机纳米粒子均匀分散，尺寸范围为 20–40 nm。当涂层暴露于盐溶液中时，通过 EIS 测量来表征混合涂层的防腐蚀性能，并在等效电路中进行参数分析。结果表明，ZnO和TiO2纳米颗粒增强了杂化涂层的防腐性能。涂层的抗真菌和抗菌性能分别由抑菌圈直径和细菌生长抑制情况决定。含有ZnO和TiO2纳米颗粒的涂层表现出抗真菌和抗菌性能，这与其光催化性能有关。通过紫外-可见光测试测定了亚甲基蓝在水溶液中的降解情况，表明含有 ZnO 和 TiO2 纳米颗粒的涂层具有自清洁性能。
Anti-corrosion, anti-fungus, and self-cleaning properties of coatings containing ZnO–TiO2, SiO2–TiO2and SiO2/TiO2/ZnO nanoparticles synthesized based on sol–gel precursors using tetra methoxysilane, 3-glycidoxypropyl trimethoxysilane, tetra (n-butyl orthotitanate) and zinc acetate dihydrate were investigated by FESEM, EDAX and TEM analyses. Results indicated uniform dispersion of inorganic nanoparticles in the range of 20–40 nm in size. Anti-corrosion property of the hybrid coating was characterized by EIS measurements and parametrically analyzed in an equivalent circuit when the coating was exposed to salt solution. Results showed that, ZnO and TiO2nanoparticles enhance anti-corrosion property of the hybrid coatings. Anti-fungus and anti-bacterial properties of the coatings were determined by diameter of inhibition zone and inhabitation of bacterial growth, respectively. The coating containing ZnO and TiO2nanoparticles showed anti-fungus and anti-bacterial properties which were related to their photocatalytic properties. Degradation of methylene blue in aqueous solution was determined by UV–Visible tests which indicated self-cleaning property of the coatings containing ZnO and TiO2nanoparticles.