Li Jian, Yan Long, Zhao Yuzhu, Zha Fei, Wang Qingtao, Lei Ziqiang
Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Gansu Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
Phys Chem Chem Phys. 2015 Mar 7;17(9):6451-7. doi: 10.1039/c5cp00154d.
In this work, a facile and inexpensive one-step sonochemistry irradiation method was developed for the fabrication of SiO2 nanoparticles functionalized with octadecyltrimethoxysilane and their in situ incorporation into cotton fabrics. The double sides of as-prepared fabrics show both superhydrophobic and superoleophilic properties simultaneously with a high water contact angle of 159 ± 1° and an oil contact angle of 0°. Thus, it can be used to separate and capture a series of oils from water, like kerosene, toluene and chloroform, etc. In addition, the as-prepared fabrics still have superhydrophobicity with a water contact angle of above 150° after 40 separation cycles with the separation efficiency for the kerosene-water mixture always above 94.6%. More importantly, the as-prepared fabrics showed robust and stable superhydrophobic properties towards hot water, many corrosive solutions (acidic, basic, salt liquids) and mechanical abrasion. Therefore, this reported fabric has the advantages of scalable fabrication, high separation efficiency, stable recyclability, and excellent durability, exhibiting the strong potential for industrial production.
在这项工作中，开发了一种简便且廉价的一步法声化学辐照方法，用于制备用十八烷基三甲氧基硅烷功能化的二氧化硅纳米颗粒，并将其原位掺入棉织物中。所制备织物的两面同时展现出超疏水和超亲油性能，水接触角高达159±1°，油接触角为0°。因此，它可用于从水中分离和捕获一系列油类，如煤油、甲苯和氯仿等。此外，所制备的织物在经过40次分离循环后仍具有超疏水性，水接触角高于150°，煤油-水混合物的分离效率始终高于94.6%。更重要的是，所制备的织物对热水、许多腐蚀性溶液（酸性、碱性、盐溶液）和机械磨损表现出稳健且稳定的超疏水性能。因此，该报道的织物具有可扩展制造、高分离效率、稳定的可回收性和优异的耐久性等优点，展现出强大的工业生产潜力。
