摘要
结合sol-gel法和水热法,在不锈钢表面原位合成纳米ZnO薄膜并对其进行了XRD、FT-IR、SEM及亲疏水性表征分析。研究结果表明,在附有ZnO种子层的不锈钢基片上,ZnO沿c轴择优取向外延生长。当pH值为11.5时,不锈钢基片上生长的ZnO纳米棒每5~8根在末端集结成束,形成具有微-纳米结构的ZnO薄膜。经十八酸改性后,疏水性基团与ZnO表面羟基反生类酯化反应嫁接到ZnO表面,使具有微-纳米结构的ZnO薄膜与水接触时产生"荷叶效应",不锈钢表面由亲水转变为超疏水。
Nanometer ZnO thin films on stainless steel substrate were in situ synthesised by sol-gel method and hydrothermal method.ZnO thin films were characterized by X-ray diffraction(XRD),fourier transform infrared spectrometer(FT-IR),scanning electron microscopy(SEM)and water contact angle(hydrophobic and hydrophilic performance).The results show that ZnO nanorods belong to c-axis orientation growth on the ZnO seed layer of stainless steel substrates.About five to eight ZnO nanorods were bundled at the end of nanorods and formed ZnO thin films with micro-nanostructure.After modified with stearic acid,hydrophobic groups were grafted with hydroxyl on ZnO surface similar to ester reaction.Based on lotus effect of micro-nanostructure,the surface property of ZnO thin films turn into super-hydrophobicity from hydrophilicity.
作者
徐姝颖
赵莹莹
宋秋实
许茜
XU Shu-ying;ZHAO Ying-ying;SONG Qiu-shi;XU Qian(School of Metallurgy,Northeastern University,Shenyang 110819,China;College of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121013,China;State Key Laboratory of Advanced Special Steel,School of Materials Science and Engineering,Shanghai University,Shanghai 200072,China)
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2018年第8期1560-1565,共6页
Journal of Synthetic Crystals
基金
国家自然科学基金(31371858)。
关键词
水热法
ZNO薄膜
疏水性能
hydrothermal method
ZnO thin film
hydrophobic property
