Durably superhydrophobic textile based on fly ash coating for oil/water separation and selective oil removal from water
Durably superhydrophobic textile based on fly ash coating for oil/water separation and selective oil removal from water
复制标题
DOI：
10.1016/j.seppur.2016.03.038
复制
发表时间：
2016-05
影响因子：
8.6
通讯作者：
Jintao Wang;Fenglan Han;Shoucun Zhang
中科院分区：
文献类型：
--
作者：
Jintao Wang;Fenglan Han;Shoucun Zhang
粉煤灰作为一种工业固体废物，会给环境带来巨大的风险。在本研究中，基于飞灰涂层的形成和随后的疏水化，开发了用于油/水分离的超疏水棉纺织品。固定化的分级粉煤灰涂层表现出超疏水性，水接触角为152°。所制备的织物可以有效分离一系列油/水混合物，分离效率高达97.3%。此外，所获得的纺织品可以在酸性、碱性、咸味和紫外线照射条件下使用。经过十六次油水分离循环后，纺织品仍保持稳定的超疏水性和较高的分离效率。由于具有良好的环境友好性、低成本、高分离效率、优异的耐用性和可回收性，所制备的纺织品可能成为油/水混合物分离的有前景的候选者。
Fly ash as an industrial solid waste can pose great risks to the environment. In the present study, superhydrophobic cotton textile for oil/water separation was developed based on the formation of fly ash coating and subsequent hydrophobization. The hierarchical fly ash coating immobilized exhibited superhydrophobicity with a water contact angle of 152°. The as-prepared textile can effectively separate a series of oil/water mixtures with high separation efficiency up to 97.3%. Furthermore, the obtained textile can be used under acidic, alkaline, salty, and ultraviolet irradiation conditions. After sixteen cycles of oil/water separation, the textiles still maintained stable superhydrophobicity and high separation efficiency. Owning to good environmental friendliness, low cost, high separation efficiency, and excellent durability and recyclability, the as-prepared textile may be a promising candidate for the separation of oil/water mixtures.